GB2292140A - Application of sulphur or metals in agriculture - Google Patents
Application of sulphur or metals in agriculture Download PDFInfo
- Publication number
- GB2292140A GB2292140A GB9516488A GB9516488A GB2292140A GB 2292140 A GB2292140 A GB 2292140A GB 9516488 A GB9516488 A GB 9516488A GB 9516488 A GB9516488 A GB 9516488A GB 2292140 A GB2292140 A GB 2292140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- weight
- inert
- particles
- filler material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000005864 Sulphur Substances 0.000 title claims abstract description 77
- 229910052751 metal Inorganic materials 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- 150000002739 metals Chemical class 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 47
- 239000000945 filler Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000000440 bentonite Substances 0.000 claims abstract description 8
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 6
- 239000011777 magnesium Substances 0.000 claims abstract description 6
- 239000000344 soap Substances 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 239000011701 zinc Substances 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 230000001360 synchronised effect Effects 0.000 claims abstract description 3
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- 239000004117 Lignosulphonate Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 235000019357 lignosulphonate Nutrition 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 239000008187 granular material Substances 0.000 description 16
- 239000000428 dust Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- -1 sulphate ions Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000209082 Lolium Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 241000605118 Thiobacillus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D5/00—Fertilisers containing magnesium
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
In a method of producing granular or pulverulent materials containing sulphur, particles of sulphur are mixed with an inert or filler material, preferably bentonite, to form said granular or pulverulent materials. The method of producing such materials may be by including an aqueous solution of a binding material therein, mixing being effected at ambient temperature, preferably in a granulating mixer suitably having an inclined granulating surface. Alternatively, the granular or pulverulent material may be produced by feeding the mixture of sulphur particles and inert or filler material between counter-rotating synchronous rollers where pressure is applied to form material of suitable size. In such method, it is possible to add a metallic soap to the mixture to act as a release agent. The material so produced can then be applied to the land. The method is also applicable to producing granular or pulverulent mixtures containing particles of magnesium, copper, zinc or iron.
Description
APPLICATION OF SULPHUR IN AGRICULTURE
The present invention concerns improvements in or relating to the application of sulphur in connection with agricultural usage thereof.
Heretofore, there has been sufficient sulphur applied to the land naturally for agricultural purposes.
Sulphur is required as a plant nutrient by being applied to the land and absorbed therein. Previously, emission from power stations has caused sulphur in the fuel for such power stations to be emitted in the form of sulphur dioxide which falls on the ground as mild sulphurous acid, and is thereafter absorbed.
With the closure of various power stations, coupled with the fact that smoke emissions are now strictly controlled, a sulphur shortage has occurred for agricultural usage.
It is extremely difficult to apply sulphur dust on its own to the land. When handled, sulphur dust generates a very high static electric charge. Should discharge occur as a spark, a temperature in excess of 1900C may be achieved, which is sufficient to ignite the dust cloud.
In an attempt to apply sulphur to the land, consideration has been given to applying same in the form of particles; however, with the small size particles required they are difficult to apply and they are dangerous to handle in confined spaces. Moreover, such fine particles can be blown away by the wind and also special equipment is needed to apply same to the land.
If larger particles are utilised then same can be too big to be effective and are not able to be quickly converted into sulphate ions by bacteria such as Thiobacillus.
One known way to apply sulphur to the ground is to form granules of bentonite and sulphur. Such granules have been produced by melting sulphur and mixing same with bentonite. Such heated mixture is then cooled by passing same through a large spray tower or on a cooled conveyor to enable sufficient residence time for cooling to take place. However, such granules do not break down in any controlled manner. In theory, when the granules are applied to the land and either water supplied thereto or rain descends thereon, the bentonite expands and breaks up the granule thereby exposing the sulphur and enabling same to be washed into the ground; however, due to the formation of the granule by the method referred to above, it takes an extremely long time for the granule to break down when water is applied thereto.Moreover, there is no control over the manner in which the granule will break and therefore there is no guarantee that the sulphur will be released in the required form or amount.
Another known way to apply sulphur to the land is to form pellets of bentonite and fly sulphur by wet extrusion. This method is more effective than the "hot" method previously referred to, but is disadvantaged by the fact that the particle size of the fly sulphur is not controlled, and the process is expensive.
It is an object of the present invention to provide a method for permitting safe and economic application of sulphur to the land in a form which allows controlled bacterial attack.
According to the present invention there is provided a method of producing granular or pulverulent materials containing sulphur, wherein particles of sulphur are mixed with an inert or filler material to form said granular or pulverulent materials.
The present invention also provides a method of application of sulphur to the land, comprising applying the granular or pulverulent material produced by the method outlined above to the land. By appropriate mixing and/or selection of sulphur particle size and/or by suitable sieving of the granular or pulverulent materials so produced, products can be obtained which when applied to the land will have the required amount of sulphur contained therein for the particular application concerned.
In the method of producing granular or pulverulent material in accordance with the invention, any suitable inert or filler material can be utilised, preferably bentonite.
The size of the sulphur particles to be utilised may be selected as appropriate, but are generally in the range of 5 - 130ss. Preferably 90% of the sulphur particles should pass through a 75p sieve. Moreover, a plurality of different size particles of sulphur can be utilised.
In producing granular or pulverulent material in accordance with the present invention, the preferred ranges of materials utilised are 10 to 95% by weight of sulphur particles and 5 to 90% by weight of inert or filler material. Preferred ranges are 70% by weight of sulphur particles and 30% by weight of inert or filler material, more preferably 60% by weight of sulphur particles and 40% by weight of inert or filler material.
The granular or pulverulent material produced is preferably of diameter size lmm to 4mm.
Production of the granular or pulverulent material may be effected by mixing the sulphur particles with the inert or filler material and adding an aqueous solution of a binding material thereto, mixing being effected at ambient temperature. Mixing is preferably effected in a granulating mixer, such mixer preferably having an inclined granulating surface.
When utilising such method of mixing, a blend of 70% by weight of sulphur particles and 30% by weight of inert or filler material would preferably be mixed with 12 to 30% by weight of binding material. Suitable binding material would be starch or lignosulphonate.
An alternative method of producing the granular or pulverulent material would be to feed the mixture of sulphur particles and inert or filler material between counter-rotating synchronous rollers where pressure is applied to form agglomerates or like granular or pulverulent material of suitable size. In order to ensure consistent size of the material so produced, subsequent screening may be necessary. When utilising this method, it is possible to add a metallic soap to the sulphur/inert or filler material formulation.
The basic formulation of sulphur particles and inert or filler material utilised in this embodiment of the invention would be substantially the same as indicated above; however, instead of utilising 12 to 30% by weight of binding material, it is possible to utilise 0.1 to 0.5% by weight of a metallic soap, such as magnesium stearate, to act as a release agent during the process.
Whichever method of mixing is utilised, it is possible, in a preferred embodiment, to choose pre selected size of sulphur particles for incorporation in the final granular or pulverulent material. By utilising appropriate inert or filler material to be mixed with the sulphur particles, granular or pulverulent material is produced which can be broken down quite quickly with water to expose the desired amount of sulphur, of the required particle size, to the land.
As indicated above, it is possible to utilise a plurality of different size particles of sulphur, particularly for example when treating various crops in order to regulate the growth thereof. In such situation, larger particles of sulphur would take a longer time to break down and therefore would be available for a longer period of time. It is also possible to produce granules of varying sizes of sulphur for particular applications.
In this connection, small granules of lmm diameter may be used on golf courses without adversely affecting the path of golf balls on the playing surface, whilst larger granules of 4mm diameter are more suitable for use of farmland.
The granules produced in accordance with the present invention can be applied by conventional techniques without any specific safety requirements or equipment being necessary. When rain falls on the land, the bentonite or other inert or filler material expands, the granule breaks and sulphur is washed into the ground.
By selecting different particle sizes of sulphur in the granules then one can control the rate of bacterial conversion to sulphate ions in the soil.
It has previously been shown that the addition of sulphur (in the form of sulphur fertilisers such as ammonium sulphate) to grassland can significantly improve yields. However, a single application does not always last the whole growing season, as it is more easily leached from the soil. Independent trials carried out on rye-grass in Cumbria demonstrated that one early Spring application of 25kg/hectare of elemental sulphur, with particle size predominantly less than 53M, produced a total increase in dry matter of 1.3 tonnes per hectare over all three cuts, providing a satisfactory source of sulphur for the whole season. This increase of some 11% was achieved despite a low yielding second cut due to abnormally low rainfall between mid-May and the end of
July, during the period of the trial.
It is possible to mix other fertilisers and other known materials with the sulphur granules as required.
It will thus be seen that the present invention provides an economic and efficient method of applying sulphur to the land for agricultural purposes. By utilising in a preferred embodiment, particles of sulphur of different sizes in the granule so formed, the yield of plants or crops throughout the year may be improved.
The present invention provides a way of applying small particle size sulphur to the land safely and economically.
Whilst the invention has been described in respect of applying sulphur to the land, it is also possible to utilise the method for applying particles of other trace elements such as magnesium, copper, zinc and iron to the land.
In accordance with a further embodiment of the present invention there is provided a method of producing granular or pulverulent materials containing magnesium, copper, zinc or iron, wherein particles of magnesium, copper, zinc or iron are mixed with an inert or filler material to form said granular or pulverulent material.
The methods of producing such materials will be the same as indicated above in respect of production of granular or pulverulent material containing sulphur.
Moreover, once so produced such granular or pulverulent material can be applied to the land in the same manner as indicated above in respect of application of sulphur to the land.
Claims (24)
1. A method of producing granular or pulverulent materials containing sulphur, wherein particles of sulphur are mixed with an inert or filler material to form said granular or pulverulent materials.
2. A method as claimed in claim 1, in which the inert or filler material utilised is bentonite.
3. A method as claimed in claim 1 or 2, in which the size of the sulphur particles to be utilised are in the range of 5 to 130p.
4. A method as claimed in claim 3, in which 90% of the sulphur particles pass through a 75p sieve.
5. A method as claimed in any preceding claim, in which a plurality of different size particles of sulphur are utilised.
6. A method as claimed in any preceding claim, in which the granular or pulverulent materials produced contain 10 to 95% by weight of sulphur particles and 5 to 90% by weight of inert or filler material, and are of diameter size 1 to 4mm.
7. A method as claimed in claim 6, in which the materials contain 70% by weight of sulphur particles and 30% by weight of inert or filler material, or 60% by weight of sulphur particles and 40% by weight of inert or filler material.
8. A method as claimed in any preceding claim, in which the sulphur particles are mixed with the inert or filler material and an aqueous solution of binding material is added thereto, mixing being effected at ambient temperature.
9. A method as claimed in claim 8, in which mixing is effected in a granulating mixer.
10. A method as claimed in claim 9, in which said granulating mixer has an inclined granulating surface.
11. A method as claimed in claim 8, 9 or 10, in which a blend of 70% by weight of sulphur and 30% by weight of inert or filler material is mixed with 12 to 30% by weight of binding material.
12. A method as claimed in claim 8, 9, 10 or 11, in which the binding material is starch or lignosulphonate.
13. A method as claimed in any one of claims 1 to 7, wherein the mixture of sulphur particles and inert or filler material is fed between counter-rotating synchronous rollers where pressure is applied to form agglomerates or like granular or pulverulent material of suitable size.
14. A method as claimed in claim 13, in which subsequent screening is effected.
15. A method as claimed in claim 13 or 14, wherein a metallic soap is added to the mixture of sulphur particles and inert or filler material to act as a release agent.
16. A method as claimed in claim 15, in which the metallic soap is magnesium stearate.
17. A method as claimed in any one of claims 13 to 16, in which the mixture contains 10 to 95% by weight of sulphur particles and 5 to 90% by weight of inert or filler material.
18. A method as claimed in claim 17, in which the mixture contains 70% by weight of sulphur particles and 30% by weight of inert or filler material, or 60% by weight of sulphur particles and 40% by weight of inert or filler material.
19. A method as claimed in claim 15 or 16, in which the mixture comprises 70% by weight of sulphur particles and 30% by weight of inert or filler material which is mixed with 0.1 to 0.5% by weight of the metallic soap.
20. A modification of the method as claimed in any preceding claim, in which the sulphur particles are replaced by particles of magnesium, copper, zinc or iron.
21. A method of producing granular or pulverulent materials as claimed in any preceding claim, substantially as hereinbefore described.
22. A method of application of sulphur to the land, comprising applying the granular or pulverulent material produced by the method as claimed in any one of claims 1 to 18 to the land.
23. A method as claimed in claim 22, wherein by appropriate mixing and/or selection of sulphur particle size and/or by suitable sieving of the granular or pulverulent material so produced, products are obtained which can be applied to the land with the required amount of sulphur contained therein for the particular application concerned.
24. A method of application of magnesium, copper, zinc or iron to the land, comprising applying the granular or pulverulent material produced by the method of claim 19 to the land.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9416402A GB9416402D0 (en) | 1994-08-13 | 1994-08-13 | Application of sulpher in agriculture |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9516488D0 GB9516488D0 (en) | 1995-10-11 |
| GB2292140A true GB2292140A (en) | 1996-02-14 |
| GB2292140B GB2292140B (en) | 1998-09-09 |
Family
ID=10759844
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9416402A Pending GB9416402D0 (en) | 1994-08-13 | 1994-08-13 | Application of sulpher in agriculture |
| GB9516488A Expired - Fee Related GB2292140B (en) | 1994-08-13 | 1995-08-11 | Application of sulphur in agriculture |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9416402A Pending GB9416402D0 (en) | 1994-08-13 | 1994-08-13 | Application of sulpher in agriculture |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9416402D0 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003053883A1 (en) * | 2001-12-20 | 2003-07-03 | Basf Aktiengesellschaft | Method for improving plant growth by application of a mixture of sulfur and complexing agent |
| WO2008024007A3 (en) * | 2006-08-25 | 2008-07-03 | Zaklady Chemiczne Siarkopol Ta | Sulphur fertilizer and granulated sulphur fertilizer manufacturing method |
| AU2007343066A1 (en) * | 2007-01-08 | 2008-07-17 | Deepak Pranjivandas Shah | Novel agricultural composition |
| WO2009051496A1 (en) * | 2007-10-18 | 2009-04-23 | Robert Hamilton Hall | Improvements in and relating to soil treatments |
| WO2010086395A1 (en) | 2009-01-29 | 2010-08-05 | Shell Internationale Research Maatschappij B.V. | Sulphur-containing fertilizers and process for the preparation thereof |
| WO2013098404A1 (en) * | 2011-12-29 | 2013-07-04 | Shell Internationale Research Maatschappij B.V. | Processes for the manufacture of sulphur-containing compositions and sulphur-containing fertilizer compositions |
| AU2012216575B2 (en) * | 2007-10-18 | 2013-07-11 | Robert Hamilton Hall | Improvements in and Relating to Soil Treatments |
| WO2020250137A1 (en) * | 2019-06-12 | 2020-12-17 | Gujarat State Fertilizers and Chemicals Limited | Process for preparation of water dispersible fertilizer composition and compositions in powder form made therefrom |
| AU2021328443B2 (en) * | 2020-08-17 | 2023-11-30 | Sml Limited | An organic agricultural composition |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB356195A (en) * | 1929-06-01 | 1931-08-31 | Eduard Dedolph | Composition serving as a fertilizer and agricultural pest destroyer |
| GB623499A (en) * | 1947-05-05 | 1949-05-18 | Adam John Sturges Beer | Improvements relating to the pulverizing of sulphur and like materials |
| GB1032724A (en) * | 1963-06-04 | 1966-06-15 | Kalk Chemische Fabrik Gmbh | Mixtures of granular or pulverulent components and finely divided phosphates |
| GB1128192A (en) * | 1964-12-04 | 1968-09-25 | Organon Labor Ltd | Process for rendering powders free flowing and the thus-obtained powders |
| GB1175876A (en) * | 1966-08-22 | 1970-01-01 | Stauffer Chemical Co | Compacted Sulphur and Method of Producing Same |
| DE1592609B1 (en) * | 1964-03-25 | 1970-02-26 | Deutsche Hyperphosphat Gmbh | Process for the production of a granulated phosphate fertilizer containing sulfur and optionally potassium salt |
| GB1213494A (en) * | 1967-03-23 | 1970-11-25 | Degussa | Prevention of agglomeration of powdered materials |
| GB2136789A (en) * | 1983-03-14 | 1984-09-26 | Stoller Ets | Rock phosphate fertilizer composition |
| WO1990003350A1 (en) * | 1988-09-30 | 1990-04-05 | F.P.S. Italiana - Finances Products Services S.R.L. | Sulfur-based chemical soil-corrective in the form of pellets for agricultural use |
-
1994
- 1994-08-13 GB GB9416402A patent/GB9416402D0/en active Pending
-
1995
- 1995-08-11 GB GB9516488A patent/GB2292140B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB356195A (en) * | 1929-06-01 | 1931-08-31 | Eduard Dedolph | Composition serving as a fertilizer and agricultural pest destroyer |
| GB623499A (en) * | 1947-05-05 | 1949-05-18 | Adam John Sturges Beer | Improvements relating to the pulverizing of sulphur and like materials |
| GB1032724A (en) * | 1963-06-04 | 1966-06-15 | Kalk Chemische Fabrik Gmbh | Mixtures of granular or pulverulent components and finely divided phosphates |
| DE1592609B1 (en) * | 1964-03-25 | 1970-02-26 | Deutsche Hyperphosphat Gmbh | Process for the production of a granulated phosphate fertilizer containing sulfur and optionally potassium salt |
| GB1128192A (en) * | 1964-12-04 | 1968-09-25 | Organon Labor Ltd | Process for rendering powders free flowing and the thus-obtained powders |
| GB1175876A (en) * | 1966-08-22 | 1970-01-01 | Stauffer Chemical Co | Compacted Sulphur and Method of Producing Same |
| GB1213494A (en) * | 1967-03-23 | 1970-11-25 | Degussa | Prevention of agglomeration of powdered materials |
| GB2136789A (en) * | 1983-03-14 | 1984-09-26 | Stoller Ets | Rock phosphate fertilizer composition |
| WO1990003350A1 (en) * | 1988-09-30 | 1990-04-05 | F.P.S. Italiana - Finances Products Services S.R.L. | Sulfur-based chemical soil-corrective in the form of pellets for agricultural use |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003053883A1 (en) * | 2001-12-20 | 2003-07-03 | Basf Aktiengesellschaft | Method for improving plant growth by application of a mixture of sulfur and complexing agent |
| AU2002328996B2 (en) * | 2001-12-20 | 2008-09-04 | Basf Se | Method for improving plant growth by application of a mixture of sulfur and complexing agent |
| US7530196B2 (en) | 2001-12-20 | 2009-05-12 | Basf Aktiengesellschaft | Method for improving plant growth by application of a mixture of sulfur and complexing agent |
| WO2008024007A3 (en) * | 2006-08-25 | 2008-07-03 | Zaklady Chemiczne Siarkopol Ta | Sulphur fertilizer and granulated sulphur fertilizer manufacturing method |
| AU2007343066A1 (en) * | 2007-01-08 | 2008-07-17 | Deepak Pranjivandas Shah | Novel agricultural composition |
| WO2008084495A3 (en) * | 2007-01-08 | 2008-10-02 | Deepak Pranjivandas Shah | Novel agricultural composition |
| AU2007343066C1 (en) * | 2007-01-08 | 2017-06-08 | Deepak Pranjivandas Shah | Novel agricultural composition |
| CN101657395A (en) * | 2007-01-08 | 2010-02-24 | 迪帕克·普兰吉万达斯·沙阿 | Novel agricultural composition |
| CN101657395B (en) * | 2007-01-08 | 2014-03-12 | 迪帕克·普兰吉万达斯·沙阿 | Agricultural composition |
| US8241387B2 (en) | 2007-01-08 | 2012-08-14 | Deepak Pranjivandas Shah | Agricultural composition |
| AU2012216575B2 (en) * | 2007-10-18 | 2013-07-11 | Robert Hamilton Hall | Improvements in and Relating to Soil Treatments |
| AU2008312121B2 (en) * | 2007-10-18 | 2013-07-11 | Robert Hamilton Hall | Improvements in and relating to soil treatments |
| WO2009051496A1 (en) * | 2007-10-18 | 2009-04-23 | Robert Hamilton Hall | Improvements in and relating to soil treatments |
| US8668759B2 (en) | 2009-01-29 | 2014-03-11 | Shell Oil Company | Sulphur-containing fertilizers and process for the preparation thereof |
| WO2010086395A1 (en) | 2009-01-29 | 2010-08-05 | Shell Internationale Research Maatschappij B.V. | Sulphur-containing fertilizers and process for the preparation thereof |
| WO2013098404A1 (en) * | 2011-12-29 | 2013-07-04 | Shell Internationale Research Maatschappij B.V. | Processes for the manufacture of sulphur-containing compositions and sulphur-containing fertilizer compositions |
| WO2020250137A1 (en) * | 2019-06-12 | 2020-12-17 | Gujarat State Fertilizers and Chemicals Limited | Process for preparation of water dispersible fertilizer composition and compositions in powder form made therefrom |
| AU2021328443B2 (en) * | 2020-08-17 | 2023-11-30 | Sml Limited | An organic agricultural composition |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9416402D0 (en) | 1994-10-05 |
| GB2292140B (en) | 1998-09-09 |
| GB9516488D0 (en) | 1995-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2006751C (en) | Homogeneous granular nitrogen fertilizer | |
| US3050383A (en) | Fertilizer | |
| US5653782A (en) | Process for the manufacture of sulfur-containing fertilizers | |
| US6132484A (en) | Wet granulation method for generating fertilizer granules | |
| CA1194334A (en) | Foliage fertilisers | |
| CA2265922C (en) | Wet granulation method for generating granules | |
| EA007775B1 (en) | A process for the manufacture of sulphur-containing ammonium phosphate fertilizers | |
| US4410350A (en) | Production of pellets and pellet-containing fertilizer composition | |
| US4183738A (en) | Granulation process and products produced thereby | |
| CA2268253C (en) | Wet granulation method for generating sulfur granules | |
| CA2091045C (en) | Non-destructive recovery of natural nitrogen products | |
| US2798801A (en) | Production of pelletized nitrogenous fertilizers | |
| GB2292140A (en) | Application of sulphur or metals in agriculture | |
| US20220380272A1 (en) | Composite fertiliser systems | |
| US5453277A (en) | Method of controlling soil pests | |
| RU2629215C1 (en) | Fertiliser and method of its obtaining | |
| WO2009125435A2 (en) | Improved sulfur formulation suitable for organic agriculture | |
| US5487772A (en) | Carboxylate nutrients and methods for their production and use | |
| US4421545A (en) | High strength melamine-urea fertilizer granules | |
| US3313615A (en) | Coated fertilizers | |
| SK279194B6 (en) | A process for producing a granular agent for conditioning of damaged and/or deficient soils | |
| WO1995021689A1 (en) | Granular urea | |
| RU2139270C1 (en) | Method of preparing organomineral fertilizer | |
| WO1988010246A1 (en) | Process for producing a granular soil conditioner | |
| EP1411036B1 (en) | Method of obtaining nitrogenated granular fertilizers with a high microelement content and fertilizers obtained thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990811 |