CN1793102A - Sodium benzoate and preparation process thereof - Google Patents
Sodium benzoate and preparation process thereof Download PDFInfo
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- CN1793102A CN1793102A CN 200510136069 CN200510136069A CN1793102A CN 1793102 A CN1793102 A CN 1793102A CN 200510136069 CN200510136069 CN 200510136069 CN 200510136069 A CN200510136069 A CN 200510136069A CN 1793102 A CN1793102 A CN 1793102A
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- Prior art keywords
- sodium benzoate
- preparation
- drying
- column
- solution
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- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 title claims abstract description 116
- 235000010234 sodium benzoate Nutrition 0.000 title claims abstract description 116
- 239000004299 sodium benzoate Substances 0.000 title claims abstract description 116
- 238000002360 preparation method Methods 0.000 title claims description 25
- 238000001035 drying Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 21
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000006386 neutralization reaction Methods 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 230000003068 static effect Effects 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 21
- 235000011121 sodium hydroxide Nutrition 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000005711 Benzoic acid Substances 0.000 description 4
- 235000010233 benzoic acid Nutrition 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- AFPHTEQTJZKQAQ-UHFFFAOYSA-N 3-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC([N+]([O-])=O)=C1 AFPHTEQTJZKQAQ-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 235000019606 astringent taste Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
Abstract
The invention relates to a method to make sodium benzoate. The method includes the following steps: taking neutral reaction to make sodium benzoate solution, slicing up the sodium benzoate solution, drying and concentrating into powder, sheet shape sodium benzoate that contains 20-26% water, extruding, graining, and drying. The process has no static electric reaction, and has good fluidity, low cost. It could be widely used in food, biology medicine, organic coating and navigating fields.
Description
Technical field
The present invention relates to a kind of benzoate, particularly a kind of Sodium Benzoate and preparation method thereof.
Background technology
Sodium Benzoate Coham Sodimu Benzoate claim sodium benzoate again, and molecular formula is: C
7H
5NaO
2, the particle type that is white in color is Powdered, and character is more stable, and (50g/100ml) soluble in water is dissolved in ethanol (1.3g/ml).Inflammable, low toxicity, have sweet astringent taste, be mainly used in the sanitas of foodstuffs industry, the sterilant of medicine industry, the mordant of fuel industry, the softening agent of plastics industry, also can be used for the manufacturing raw material of spices.Its product mainly contains powdery Sodium Benzoate and granular sodium benzoate.The long-distance transport of powdery Sodium Benzoate causes product to harden, and causes and uses inconvenience, and environment is had pollution, mobile very poor.Granular sodium benzoate good fluidity, but produce the static reaction brings unsafe factor to special environment for use, and granular sodium benzoate energy consumption height, and raw material consumption is big and bring influence through the pure white degree of High Temperature High Pressure granulation reaction pair product.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of Sodium Benzoate of new shape.This Sodium Benzoate shape of product is even, non-friable; Can economize in raw materials in process of production reduces cost, and unit consumption is low, and has controlled the phenomenon of the dust from flying in the production process well; It is better in use not have static reaction and flowing property.
The purpose of this invention is to provide a kind of Sodium Benzoate.
Another object of the present invention has provided a kind of preparation method of Sodium Benzoate.
Sodium Benzoate of the present invention, molecular formula are C
7H
5NaO
2, be shaped as the column solid.Physical dimension is preferably diameter 0.1-2.5mm, and column length is 1-20mm, most preferably is diameter 1.2-2.5mm, length 1-9mm, and the best is diameter 1.2mm, length 3-5mm.
The preparation method of Sodium Benzoate of the present invention comprises the steps:
A. produce Sodium Benzoate solution;
B. Sodium Benzoate solution is through moisture powder, the sheet Sodium Benzoate that is divided into 20-26% (quality percentage composition) of slicing machine chip drying simmer down to;
C. be column with powder, sheet Sodium Benzoate with the forcing machine extruding pelletization, carry out drying then.
The slicing machine of described step b is for feeding the cylinder slicing machine of steam.The drying mode of described step C can adopt any of routine, the present invention is preferably hot-air dry, be specially: air is purified after gas blower is transported to interchanger by efficient air purifier, and steam is transported to simultaneously and produces warm air in the interchanger, and warm air enters drying machine the column Sodium Benzoate is carried out drying.The gas that drying machine transfers out carries out dedusting through sack cleaner again after cyclonic separator separates, the gas of allow compliance with emission standards is discharged (as shown in Figure 1) by induced draft fan after the dedusting.
The preparation process of Sodium Benzoate of the present invention is mainly:
Preparation Sodium Benzoate solution → decolouring → filtration → preliminarily dried section → wet method extruding → drying → screening=column Sodium Benzoate
At first carry out prepared in reaction Sodium Benzoate solution; again by the decolouring of activated carbon decolorizing jar, filtration; enter the cylinder slicing machine that is connected with steam and be cut into powdery or sheet; be transported to after feed bin is transported to the tablets press granulation again and carry out drying in the drying machine, dried column Sodium Benzoate is transported to finished product bin and packs.
Preparation Sodium Benzoate solution can adopt conventional any method, is carried out neutralization reaction or reacted by phenylformic acid and yellow soda ash all can by phenylformic acid and sodium hydroxide.Preferred phenylformic acid and sodium hydroxide carry out neutralization reaction and generate, because this production method cost inferior quality is stable, process is not discharged CO
2Gas has been protected environment effectively.After preparation Sodium Benzoate solution reaction is finished again through decolouring, filter, generate the pure white Sodium Benzoate aqueous solution, preferred preparation contains the Sodium Benzoate aqueous solution that Sodium Benzoate is 36-38% (a quality percentage composition), because if strength of solution is too high, easily cause line clogging, concentration is low excessively, needs a large amount of heat energy during follow-up dry moisture, causes waste.Then through the moisture sheet Sodium Benzoate that is divided into 20-26% (quality percentage composition) of slicing machine chip drying simmer down to, extrude with forcing machine again and be column, drying machine transpiring moisture becomes column Sodium Benzoate finished product then.
Sodium Benzoate produces the fragrance of resting in peace in process of production, be nontoxic, but the people is done not feel like oneself, for eliminating the influence of M-nitro benzoic acid to environment, adopt all-sealed production in neutralization reaction and section drying process, gas in its production process is concentrated and is extracted out through induced draft fan by venting hole, before gas is discharged, at first through spray column feedwater spray, lower the temperature through cyclonic separator again, effectively reduced the gas purging amount, made the expellant gas standard reach discharging standards, and the distilled water that reclaims recycles as water of productive use.Extruding, producing low amounts of dust in drying and the wrapping process, carry out dedusting with sack cleaner and reclaim.
The change of the cylindricality size of Sodium Benzoate of the present invention obtains by the aperture in corresponding control cross-head template top discharge hole.The concrete structure of template as shown in Figure 2.
Sodium Benzoate of the present invention has following beneficial effect:
1. even by forcing machine extruded product shape, be difficult for fragmentation, and produce the product of different sizes according to different demands.
2. granular Sodium Benzoate has generation of static electricity to be unfavorable for safe handling, and powdery Sodium Benzoate flowing property is relatively poor, easily hardens, and uses inconvenience, and Sodium Benzoate of the present invention does not in use have the static reaction, help safe handling, and flowing property is better.
3. can economize in raw materials, reduce cost, unit consumption is low.When raw material adopts phenylformic acid and sodium hydroxide, 0.848 ton in phenylformic acid of column Sodium Benzoate per ton, 0.278 ton in sodium hydroxide, and granular Sodium Benzoate 0.91 ton in phenylformic acid, 0.29 ton in sodium hydroxide.Reduce by 6.8% and 4.1% respectively.Sodium Benzoate power consumption of the present invention is 141kwh/t, and granular Sodium Benzoate power consumption is 500kwh/t, and the electricity consumption reduction reaches 71.8%.
4. the mode of production of granular Sodium Benzoate is through the ebullated bed mist projection granulating with Sodium Benzoate solution, the reaction process High Temperature High Pressure, innovative technology route of the present invention, replace the reaction process of granular Sodium Benzoate High Temperature High Pressure with mechanical wet method extruding physics production process, guaranteed the pure white degree of safety in production and product does not cause pure white degree because of the reaction of High Temperature High Pressure destruction.
5. traditional Powdered Sodium Benzoate mode of production is to make after cutting into slices, pulverize after the Sodium Benzoate solution high temperature drying dehydration that will make, and production process dust from flying phenomenon is serious.The present invention extrudes the column Sodium Benzoate through adopting wet method, compares with the Powdered Sodium Benzoate mode of production, makes the dust from flying in the production process obtain effective control, and the dust reduced rate reaches more than 95%.
In sum, it is poor that Sodium Benzoate of the present invention can change the flowability of powdery Sodium Benzoate, and granular sodium benzoate is easy to generate micro-static, product energy consumption height, defectives such as colour difference.Prediction column Sodium Benzoate product comes out and will cause the updating and upgrading of a product of sanitas.This product not only possesses the advantage of powdery and granular sodium benzoate, effectively overcomes the deficiency of powdery and granular sodium benzoate product, and can expand the use field of this product, not only can be applied to gourmet food.And can be applied to fields such as bio-pharmaceuticals, detergents and cosmetic, organic coating and aviation.
Description of drawings
Fig. 1: Sodium Benzoate preparation technology schema;
Fig. 2: the front view of cross-head template, wherein 1 is discharge hole.
Be evenly distributed with the circular discharge hole of same diameter on circular shuttering, the diameter of circular hole is decided by the size of required column Sodium Benzoate.
Embodiment
Embodiment 1
Prepare one ton of column Sodium Benzoate (the column diameter is 1.2mm, and length is 3-5mm)
The distilled water that adds 980Kg earlier, adding liquid caustic soda 870Kg that the benzoic acid solution 850Kg that becomes owner of content 〉=98% (quality percentage composition) and main content is 32% (quality percentage composition) again carries out neutralization reaction and generates Sodium Benzoate solution, in the activated carbon decolorizing jar, decolour again, filtration obtains containing the Sodium Benzoate aqueous solution of 37% (quality percentage composition) Sodium Benzoate, this Sodium Benzoate solution is added by steam-heated cylinder slicing machine, the moisture sheet Sodium Benzoate that is divided into 23% (quality percentage composition) of chip drying simmer down to, the general steam of slicing machine keep-ups pressure at 0.45MPa, temperature is controlled at 160 ℃, slicing machine rotating speed 3r/min.Enter the extruding type tablets press by feed bin again and carry out granulation, forcing machine is a single-screw, screw diameter 120mm, and rotating speed 85r/min is transported to after the granulation again and carries out drying in the drying machine, 150 ℃ of dryer entrance temperature, 70 ℃ of air outlet temperatures.Dried column Sodium Benzoate screens through vibratory screening apparatus, obtains 1.2 millimeters of diameters, 3～5 millimeters of length, and main content is the column Sodium Benzoate of 99.81% (quality percentage composition), is transported to finished product bin at last and packs.The warm air of drying machine purifies the back air by efficient air purifier and is transported to interchanger through gas blower, and steam is transported to the interior generation of interchanger simultaneously and feeds in the drying machine again, and dry expellant gas carries out dedusting through sack cleaner again and by induced draft fan the gas of allow compliance with emission standards discharged after cyclonic separator separates.(particular flow sheet is seen Fig. 1)
Comparative Examples 1
Prepare one ton of granular Sodium Benzoate
The distilled water that adds 980Kg earlier, adding liquid caustic soda 910Kg that the benzoic acid solution 912Kg that becomes owner of content 〉=98% (quality percentage composition) and main content is 32% (quality percentage composition) again carries out neutralization reaction and generates Sodium Benzoate solution, the liquid material opening for feed of this Sodium Benzoate solution by the ebullated bed nozzle added in the ebullated bed, simultaneously to the nozzle bubbling air, air inlet on the nozzle adopts the rotary principle of spiral to advance the air method, the air that enters is entered by this mouth form the cyclone type rotation in the tower bed.Make the liquid material fully contact the formation granular sodium benzoate at tower bed internal rotation.
The production cost of embodiment 1 and Comparative Examples 1 sees Table 1:
The cost contrast of table 1 embodiment 1 and Comparative Examples 1
Embodiment 2
Preparation column Sodium Benzoate (the column diameter is 1.3mm, and length is 3-5mm)
The distilled water that adds 980Kg earlier, adding liquid caustic soda 870Kg that the benzoic acid solution 850Kg that becomes owner of content 〉=98% (quality percentage composition) and main content is 32% (quality percentage composition) again carries out neutralization reaction and generates Sodium Benzoate solution, in the activated carbon decolorizing jar, decolour again, filtration obtains containing the Sodium Benzoate aqueous solution of 37% (quality percentage composition) Sodium Benzoate, this Sodium Benzoate solution is added by steam-heated cylinder slicing machine, the moisture sheet Sodium Benzoate that is divided into 26% (quality percentage composition) of chip drying simmer down to, the general steam of slicing machine keep-ups pressure at 0.5MPa, temperature is controlled at 160 ℃, slicing machine rotating speed 3.3r/min.Enter the extruding type tablets press by feed bin again and carry out granulation, forcing machine is a single-screw, screw diameter 120mm, and rotating speed 85r/min is transported to after the granulation again and carries out drying in the drying machine, 160 ℃ of moisture eliminator inlet temperature, 90 ℃ of air outlet temperatures.Dried column Sodium Benzoate screens through vibratory screening apparatus, obtains 1.3 millimeters of diameters, 3～5 millimeters of length, and main content is the column Sodium Benzoate of 99.54% (quality percentage composition).
Embodiment 3
Preparation column Sodium Benzoate (the column diameter is 0.3mm, and length is 1-3mm)
The distilled water that adds 980Kg earlier, adding liquid caustic soda 870Kg that the benzoic acid solution 850Kg that becomes owner of content 〉=98% (quality percentage composition) and main content is 32% (quality percentage composition) again carries out neutralization reaction and generates Sodium Benzoate solution, in the activated carbon decolorizing jar, decolour again, filtration obtains containing the Sodium Benzoate aqueous solution of 37% (quality percentage composition) Sodium Benzoate, this Sodium Benzoate solution is added by steam-heated cylinder slicing machine, the moisture sheet Sodium Benzoate that is divided into 20% (quality percentage composition) of chip drying simmer down to, the general steam of slicing machine keep-ups pressure at 0.4MPa, temperature is controlled at 160 ℃, slicing machine rotating speed 3r/min.Enter the extruding type tablets press by feed bin again and carry out granulation, forcing machine is a single-screw, screw diameter 120mm, and rotating speed 85r/min is transported to after the granulation again and carries out drying in the drying machine, 160 ℃ of moisture eliminator inlet temperature, 100 ℃ of air outlet temperatures.Dried column Sodium Benzoate screens through vibratory screening apparatus, obtains 0.3 millimeter of diameter, 1～3 millimeter of length, and main content is the column Sodium Benzoate of 99.48% (quality percentage composition).
Embodiment 4
Preparation column Sodium Benzoate (the column diameter is 0.8mm, and length is 1-3mm)
Embodiment 5
Preparation column Sodium Benzoate (the column diameter is 1.0mm, and length is 2-4mm)
Embodiment 6
Preparation column Sodium Benzoate (the column diameter is 1.5mm, and length is 5-7mm)
Embodiment 7
Preparation column Sodium Benzoate (the column diameter is 1.8mm, and length is 7-9mm)
Embodiment 8
Preparation column Sodium Benzoate (the column diameter is 2.3mm, and length is 15-20mm)
Embodiment 2-8 is according to the diameter of prepared column, the cross-head template in the corresponding aperture of corresponding replacing.Embodiment 4-8 is except that the cross-head template replacement, and other are all identical with embodiment 1.
The test of related data:
1. the test of moisture content:
To take by weighing about 1.5g (± 0.0002g) sample, and under 150 ℃, be dried to constant weight with it after the weighing bottle constant weight.The moisture content of representing with mass percent (X2) is calculated as follows:
X
2＝(M
1-M
2)/M*100
In the formula: M
1---dry preceding weighing bottle and sample mass g
M
2---dry back weighing bottle and sample mass g
M---sample mass g
2. whiteness test: the full-automatic whiteness test instrument of WSD-3C (whiteness unit is: Wr represents) that adopts Beijing to produce
The whiteness test data gather as follows:
。
| The sample title | Whiteness (Wr) |
| Embodiment 1 | 97.66 |
| Embodiment 2 | 97.98 |
| Embodiment 3 | 97.65 |
| Embodiment 4 | 97.21 |
| Embodiment 5 | 97.32 |
| Embodiment 6 | 97.58 |
| Embodiment 7 | 97.66 |
| Embodiment 8 | 97.88 |
| Comparative Examples 1 | 96.28 |
Claims (10)
1. Sodium Benzoate, described molecular formula is C
7H
5NaO
2, it is characterized in that being shaped as the column solid.
2. Sodium Benzoate as claimed in claim 1 is characterized in that described Sodium Benzoate is of a size of diameter 0.1-2.5mm, and length is 1-20mm.
3. Sodium Benzoate as claimed in claim 2 is characterized in that described Sodium Benzoate is of a size of diameter 1.2-1.5mm, and length is 1-9mm.
4. Sodium Benzoate as claimed in claim 3 is characterized in that described Sodium Benzoate is of a size of diameter 1.2mm, and length is 3-5mm.
5. as the preparation method of the described Sodium Benzoate of one of claim 1 to 4, it is characterized in that comprising the steps:
A. produce Sodium Benzoate solution;
B. with this Sodium Benzoate solution through moisture powder, the sheet Sodium Benzoate that is divided into 20-26% (quality percentage composition) of slicing machine chip drying simmer down to;
C. again powder, sheet Sodium Benzoate are extruded Sodium Benzoate into column with forcing machine, carry out drying then.
6. the preparation method of Sodium Benzoate as claimed in claim 5 is characterized in that the cylinder slicing machine of the slicing machine of described step b for feeding steam.
7. the preparation method of Sodium Benzoate as claimed in claim 6, the mass percentage concentration that it is characterized in that described step a Sodium Benzoate solution is 36-38%.
8. the preparation method of Sodium Benzoate as claimed in claim 7, the preparation that it is characterized in that described step a Sodium Benzoate solution is to carry out neutralization reaction by phenylformic acid and sodium hydroxide to make.
9. the preparation method of Sodium Benzoate as claimed in claim 5, it is characterized in that described neutralization reaction and section drying process adopt all-sealed production, gas in its production process is concentrated and is extracted out through induced draft fan by venting hole, before gas is discharged, at first through spray column feedwater spray, again through the cyclonic separator cooling, and the distilled water that reclaims recycles as water of productive use, extrude at described step C, produce low amounts of dust in the drying process, carry out dedusting with sack cleaner and reclaim.
10. the preparation method of Sodium Benzoate as claimed in claim 8.The drying mode that it is characterized in that described step C is transported to interchanger for purified the back air by efficient air purifier through gas blower, and steam is transported to simultaneously and produces warm air in the interchanger, warm air enters drying machine the column Sodium Benzoate is carried out drying, and the gas that moisture eliminator transfers out carries out discharging after the dedusting through sack cleaner after cyclonic separator separates again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101360698A CN100410227C (en) | 2005-12-31 | 2005-12-31 | Sodium benzoate and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101360698A CN100410227C (en) | 2005-12-31 | 2005-12-31 | Sodium benzoate and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1793102A true CN1793102A (en) | 2006-06-28 |
| CN100410227C CN100410227C (en) | 2008-08-13 |
Family
ID=36804766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101360698A Expired - Fee Related CN100410227C (en) | 2005-12-31 | 2005-12-31 | Sodium benzoate and preparation process thereof |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390855A (en) * | 2016-08-31 | 2017-02-15 | 武汉有机实业有限公司 | Device and method for continuously producing spherical sodium benzoate |
| CN107927348A (en) * | 2017-11-10 | 2018-04-20 | 杭州康德权饲料有限公司 | It is a kind of while produce sodium butyrate original powder and the system and production technology of butyric acid salt particle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708408B (en) * | 2009-11-12 | 2012-01-04 | 天津市东大化工有限公司 | Impact water film dedustor and application thereof in vacuum suction system in sodium benzoate production |
-
2005
- 2005-12-31 CN CNB2005101360698A patent/CN100410227C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390855A (en) * | 2016-08-31 | 2017-02-15 | 武汉有机实业有限公司 | Device and method for continuously producing spherical sodium benzoate |
| CN106390855B (en) * | 2016-08-31 | 2019-03-29 | 武汉有机实业有限公司 | The device and method of the spherical sodium benzoate of continuous production |
| CN107927348A (en) * | 2017-11-10 | 2018-04-20 | 杭州康德权饲料有限公司 | It is a kind of while produce sodium butyrate original powder and the system and production technology of butyric acid salt particle |
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| Publication number | Publication date |
|---|---|
| CN100410227C (en) | 2008-08-13 |
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