CN102887495A - Method for producing trisodium monohydrogen diphosphate by neutralization process - Google Patents
Method for producing trisodium monohydrogen diphosphate by neutralization process Download PDFInfo
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- CN102887495A CN102887495A CN2012103414211A CN201210341421A CN102887495A CN 102887495 A CN102887495 A CN 102887495A CN 2012103414211 A CN2012103414211 A CN 2012103414211A CN 201210341421 A CN201210341421 A CN 201210341421A CN 102887495 A CN102887495 A CN 102887495A
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- trisodium
- sodium
- trisodium monohydrogen
- monohydrogen diphosphate
- diphosphate
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Abstract
The invention provides a method for producing trisodium monohydrogen diphosphate by a neutralization process. The method comprises the following steps of performing neutralization reaction on phosphoric acid and alkali which serve as raw materials, spray drying a neutralized solution at the temperature of between 140 and 180 DEG C, conveying the powder obtained by the spray drying step to a polymerization furnace at the temperature of between 170 and 250 DEG C and performing polymerization to obtain trisodium monohydrogen diphosphate. The alkali used in the method is ion film caustic soda or sodium carbonate, and the ratio of Na to P is 1.50 to 1.51. The invention provides the method for producing the trisodium monohydrogen diphosphate. The trisodium monohydrogen diphosphate is a new type of phosphate in China, and the method for producing the trisodium monohydrogen diphosphate is originated in China and fills in the blank in production of the trisodium monohydrogen diphosphate. Moreover, the trisodium monohydrogen diphosphate produced by the method solves the problems that sodium pyrophosphate has poor solubleness and high alkalinity in application and can replace the sodium pyrophosphate in a lot of application fields. The production method is high in operability, the flow is quite convenient for industrialization, and the products produced by the method are high in purity.
Description
Technical field
The present invention relates to a kind of is the method that raw material reaction is produced tetra-sodium one hydrogen trisodium by the phosphorus bronsted lowry acids and bases bronsted lowry.
Background technology
Phosphoric acid salt has a wide range of applications in food, and trisodium phosphate is used widely as water-holding agent in meat product, fishery products; Look is pickled in formation but the high pH value of trisodium phosphate is unfavorable for meat product, and high pH value also can bring heavier soap flavor or astringent taste, affects the mouthfeel of food; Trisodium phosphate poorly soluble, especially dissolution rate is full under the cold condition, and easy caking in solution is not easy to the industrial treatment process of food.
Tetra-sodium one hydrogen trisodium is a kind of phosphoric acid salt between trisodium phosphate and Sodium Acid Pyrophosphate, pH value 7.0 ± 0.5, solvability is good, with the composite use of trisodium phosphate or separately use can avoid the shortcoming of trisodium phosphate in the food-processing.In addition, tetra-sodium one hydrogen trisodium can also as odorant, the phagostimulant of pet food, have widely purposes abroad.Tetra-sodium one hydrogen trisodium is not closed the report of its production technique and applied research at present at home as a kind of new additive that can be used for food.
Summary of the invention
The invention provides a kind of compound and alkali or acid by containing pyrophosphate is the method that raw material reaction is produced tetra-sodium one hydrogen trisodium.
The object of the present invention is achieved like this: a kind of neutralisation is produced the method for tetra-sodium one hydrogen trisodium, carry out neutralization reaction take the phosphorus bronsted lowry acids and bases bronsted lowry as raw material, temperature of reaction 80-120 ℃, pulp density is controlled at 30-60%, insulation 0.5-1h, with neutralization solution spraying drying between 140-180 ° of C, dry gained powder is sent into polymerization in the polymerization furnace, polymerization temperature is controlled at 170-230 ° of C, and reaction obtains tetra-sodium one hydrogen trisodium.Described raw material alkali is ion film caustic soda or yellow soda ash.The ratio of raw material phosphor bronsted lowry acids and bases bronsted lowry is 1.50-1.51 for control Na: P.
The invention provides the production method of tetra-sodium one hydrogen trisodium.Tetra-sodium one hydrogen trisodium is domestic new variety phosphoric acid salt, and this technique is domestic initiation, has filled up the blank of this respect.Solve simultaneously problem poorly soluble in the trisodium phosphate application process, that alkalescence is strong, can replace trisodium phosphate in numerous Application Areass.Production technique provided by the invention is workable, and flow process extremely is convenient to industrialization, and the purity of products obtained therefrom is high.
Embodiment
Example 1:
Example 1: a certain amount of phosphoric acid is added in the neutralization pot, add continuously ion film caustic soda to Na: P be 1.50-1.51, pulp density is controlled at 30-60%, temperature of reaction 80-120 ℃, insulation 0.5-1h, the solution that reaction is obtained carries out spraying drying between 140-180 ℃, dry gained powder is sent into polymerization in the polymerization furnace, polymerization temperature is controlled at 170-250 ℃, and reaction 2h obtains tetra-sodium one hydrogen trisodium product.
Whole reaction process equation is:
3NaOH+2H
3PO
4→Na
2HPO
4+NaH
2PO
4+3H
2O
Na
2HPO
4+NaH
2PO
4→Na
3HP
2O
7+H
2O
Example 2: first water is added in the neutralization pot, add a certain amount of soda ash, stirring and dissolving is complete, logical steam heating, and solution is warming up to 80-120 ℃, adds phosphoric acid for food, and control Na: P is 1.50-1.51, and pulp density is controlled at 30-60%, insulation reaction 0.5-1h.Solution is carried out spraying drying between 140-180 ° of C, dry gained powder is sent into polymerization in the polymerization furnace, and polymerization temperature is controlled at 170-250 ℃, and reaction 2h obtains tetra-sodium one hydrogen trisodium product.
Whole reaction process equation is:
3Na
2CO
3+4H
3PO
4→2Na
2HPO
4+2NaH
2PO
4+3H
2O+3CO2
Na
2HPO
4+NaH
2PO
4→Na
3HP
2O
7+H
2O
Example 1 and example 2 products obtained therefrom detected result such as following tables:
Claims (3)
1. a neutralisation is produced the method for tetra-sodium one hydrogen trisodium, it is characterized in that: carry out neutralization reaction take the phosphorus bronsted lowry acids and bases bronsted lowry as raw material, temperature of reaction 80-100 ℃, insulation 0.5-1h, with neutralization solution spraying drying between 140-180 ° of C, dry gained powder is sent into polymerization in the polymerization furnace, and polymerization temperature is controlled at 170-230 ° of C, and reaction obtains tetra-sodium one hydrogen trisodium.
2. neutralisation according to claim 1 is produced the method for tetra-sodium one hydrogen trisodium, and it is characterized in that: described raw material alkali is ion film caustic soda or yellow soda ash.
3. neutralisation according to claim 1 is produced the method for tetra-sodium one hydrogen trisodium, it is characterized in that: the ratio of raw material phosphor bronsted lowry acids and bases bronsted lowry is 1.50-1.51 for control Na: P, and pulp density is controlled at 30-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341421.1A CN102887495B (en) | 2012-09-16 | 2012-09-16 | Method for producing trisodium monohydrogen diphosphate by neutralization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341421.1A CN102887495B (en) | 2012-09-16 | 2012-09-16 | Method for producing trisodium monohydrogen diphosphate by neutralization process |
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| Publication Number | Publication Date |
|---|---|
| CN102887495A true CN102887495A (en) | 2013-01-23 |
| CN102887495B CN102887495B (en) | 2014-11-05 |
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| CN201210341421.1A Active CN102887495B (en) | 2012-09-16 | 2012-09-16 | Method for producing trisodium monohydrogen diphosphate by neutralization process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145111A (en) * | 2013-03-27 | 2013-06-12 | 徐州工业职业技术学院 | Production method of disodium dihydrogen pyrophosphate with high raising rate |
| CN114804050A (en) * | 2022-05-29 | 2022-07-29 | 四川金地亚美科技有限公司 | Production process of anhydrous trisodium pyrophosphate |
| WO2022233097A1 (en) * | 2021-05-07 | 2022-11-10 | 云南莱德福科技有限公司 | Anhydrous trisodium hydrogen diphosphate, and preparation method therefor and application thereof |
-
2012
- 2012-09-16 CN CN201210341421.1A patent/CN102887495B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 卫生部: "《关于批准焦磷酸一氢三钠等5种食品添加剂新品种的公告》", 17 August 2012, article "关于批准焦磷酸一氢三钠等5种食品添加剂新品种的公告" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145111A (en) * | 2013-03-27 | 2013-06-12 | 徐州工业职业技术学院 | Production method of disodium dihydrogen pyrophosphate with high raising rate |
| WO2022233097A1 (en) * | 2021-05-07 | 2022-11-10 | 云南莱德福科技有限公司 | Anhydrous trisodium hydrogen diphosphate, and preparation method therefor and application thereof |
| CN114804050A (en) * | 2022-05-29 | 2022-07-29 | 四川金地亚美科技有限公司 | Production process of anhydrous trisodium pyrophosphate |
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|---|---|
| CN102887495B (en) | 2014-11-05 |
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