GB1296751A - - Google Patents
Info
- Publication number
- GB1296751A GB1296751A GB344870A GB1296751DA GB1296751A GB 1296751 A GB1296751 A GB 1296751A GB 344870 A GB344870 A GB 344870A GB 1296751D A GB1296751D A GB 1296751DA GB 1296751 A GB1296751 A GB 1296751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- sodium metaphosphate
- jan
- water
- heating
- 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.)
- Expired
Links
- 239000000203 mixture Substances 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- AQMNWCRSESPIJM-UHFFFAOYSA-M sodium metaphosphate Chemical compound [Na+].[O-]P(=O)=O AQMNWCRSESPIJM-UHFFFAOYSA-M 0.000 abstract 2
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 150000003388 sodium compounds Chemical class 0.000 abstract 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 abstract 1
- 235000019983 sodium metaphosphate Nutrition 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/44—Metaphosphates
- C01B25/445—Metaphosphates of alkali metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
1296751 Sodium metaphosphate ALBRIGHT & WILSON Ltd 19 Jan 1971 [23 Jan 1970] 3448/70 Heading C1A Insoluble sodium metaphosphate is prepared by heating a mixture of (A) monosodium orthophosphate or a mixture of a basic sodium compound and a phosphoric acid (Na : P = 1:1) and (B) 10-35% wt. of free water based on the weight of solids in the mixture. "Free water" includes water of crystallization but excludes water of constitution. It is preferred to heat the mixture at 300-400‹ C. and the mixture may include as seed 5-30% wt. of insoluble sodium metaphosphate based on the wt. of component A. Said seed material will preferably pass through a 100 BSS mesh sieve. The mixture of A and B may be pelleted or briquetted prior to heating preferably to have a maximum dimension of “-¢ inch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB344870 | 1970-01-23 | ||
| CA104,704A CA971729A (en) | 1970-01-23 | 1971-02-08 | Alkali metal phosphate manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1296751A true GB1296751A (en) | 1972-11-15 |
Family
ID=25666718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB344870A Expired GB1296751A (en) | 1970-01-23 | 1970-01-23 |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA971729A (en) |
| GB (1) | GB1296751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2348151A1 (en) * | 1976-04-15 | 1977-11-10 | Hoechst Ag | MADDRELL SALT PREPARATION PROCESS |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360625A (en) * | 1979-12-14 | 1982-11-23 | Monsanto Company | Acicular, crystalline calcium metaphosphate |
| DE3543394A1 (en) * | 1985-12-07 | 1987-06-11 | Benckiser Knapsack Gmbh | METHOD FOR PRODUCING MADDRELL'S SALT, AND SODIUM DIHYDROGEN PHOSPHATE, CONTAINING 0.05 - 2.5 MOL% PHOSPHORIC ACID OR AMMONIUM PHOSPHATE IN A STATISTICAL DISTRIBUTION |
-
1970
- 1970-01-23 GB GB344870A patent/GB1296751A/en not_active Expired
-
1971
- 1971-02-08 CA CA104,704A patent/CA971729A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2348151A1 (en) * | 1976-04-15 | 1977-11-10 | Hoechst Ag | MADDRELL SALT PREPARATION PROCESS |
Also Published As
| Publication number | Publication date |
|---|---|
| CA971729A (en) | 1975-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |