CN104891466B - Production method of instant food-grade sodium pyrophosphate - Google Patents
Production method of instant food-grade sodium pyrophosphate Download PDFInfo
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- CN104891466B CN104891466B CN201510247106.6A CN201510247106A CN104891466B CN 104891466 B CN104891466 B CN 104891466B CN 201510247106 A CN201510247106 A CN 201510247106A CN 104891466 B CN104891466 B CN 104891466B
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Abstract
The invention provides a production method of an instant food-grade sodium pyrophosphate. The method is as below: reacting a food grade compound containing pyrophosphate with sodium hydroxide at 60-90 DEG C obtain a solution as a mother liquor; controlling the concentration of the mother liquor at 20-40%; and successively conducting circulating water cooling and crystallization, centrifugation and drying on the mother liquor to produce the instant food-grade sodium pyrophosphate product. The process of the invention has the characteristics of easy operation, strong controllability, environment-friendliness and low energy consumption; the product has stable quality, good solubility, non-caking at low temperature dissolution and powder dispersion distribution. The invention solves the technical problems of poor solubility and easy caking at low temperatures dissolution of common sodium pyrophosphate in the industry.
Description
Technical field
The present invention relates to a kind of carry out instead with the food grade compounds containing pyrophosphate and sodium hydroxide for raw material
The method that should produce Instant food stage sodium pyrophosphate.
Background technology
In food service industry, phosphate application is quite varied.As an important kind in phosphate, burnt phosphorus
Acid sodium all plays a part to be difficult to substitute because its water-retaining property is good in the processed and applied such as aquatic products and meat products.But
There is the shortcoming of dissolubility difference in the sodium pyrophosphate that convention polymerization methods produces, it is slow that it shows as dissolution velocity, particularly
In low temperature solution process, easily it is gathered into bulk or dough, brings very big inconvenience to the processed of food.
Instant sodium pyrophosphate not only has the advantage of common sodium pyrophosphate good water-retaining property, and the most molten
Solution is splendid, and its dissolution velocity is also fast, and remote super common sodium pyrophosphate, even in low temperature solution process the most not
Caking phenomenon can occur, but be uniformly distributed in powdery, the most advantageously in food processing.
It addition, in the present invention, the production technology of instant formed coke sodium phosphate is simple, energy consumption is low, pollution-free, on the whole
It is better than convention polymerization methods, complies fully with the requirement of national green environmental protection.
Summary of the invention
The present invention provides a kind of raw for raw material reaction with sodium hydroxide with the food grade compounds containing pyrophosphate
The method producing Instant food stage sodium pyrophosphate.
The object of the present invention is achieved like this: the production method of a kind of Instant food stage sodium pyrophosphate, will contain
The food grade compounds having pyrophosphate reacts 30-50min with sodium hydroxide at 60-90 DEG C, and reaction gained is female
Liquid through circulating water crystallization, centrifugation, be dried to obtain ten hydrations or anhydrous sodium pyrophosphate.
The described food grade compounds containing pyrophosphate refers to food stage Sodium Acid Pyrophosphate or pyrophosphoric acid one
One in hydrogen trisodium；Described sodium hydroxide is ionic membrane sodium hydroxide.
To react mother liquid obtained (concentration controls at 20-40%) after the crystallization of 10-20 DEG C of circulating water, use
Centrifuge carries out solid-liquid separation, separates rotating speed and controls, at 800-1000r/min, then to be existed by crystal
Being dried 1-2h at 40-60 DEG C, the product obtained is sodium pyrophosphate decahydrate；Continue at 100-160 DEG C of dry 2-4h,
Obtain anhydrous sodium pyrophosphate.
Products obtained therefrom Instant sodium pyrophosphate of the present invention is compared with common sodium pyrophosphate, and dissolubility is more preferable, its performance
Dissolve soon, under cryogenic for dissolution velocity and do not lump, solve common sodium pyrophosphate at food processing process
Middle dissolution in low temperature easily lumps this technical barrier.On the other hand, production technology environmental protection of the present invention
Energy consumption is low, and industrialization easily realizes.It is to kill two birds with one stone.
Accompanying drawing explanation
Fig. 1 is common sodium pyrophosphate and instant sodium pyrophosphate dissolved state figure in 2min in 25 DEG C of water.
Fig. 2 is common sodium pyrophosphate and instant sodium pyrophosphate dissolved state figure in 2min in frozen water.
Detailed description of the invention
The reaction principle of the present invention is as follows:
(1) raw material is Sodium Acid Pyrophosphate and sodium hydroxide
Na2H2P2O7+2NaOH→Na4P2O7+2H2O
(2) raw material is pyrophosphoric acid one hydrogen trisodium and sodium hydroxide
Na3HP2O7+NaOH→Na4P2O7+H2O
Embodiment 1
1000g Sodium Acid Pyrophosphate is dissolved in 1500ml distilled water, then by 720g sodium hydroxide solution
(content is 48%) continuous stirring adds in Sodium Acid Pyrophosphate solution, is incubated 60-90 DEG C of reaction 40min.
Mother liquid obtained after 10-20 DEG C of circulating water crystallization, it is centrifuged separating with centrifuge, rotating speed controls
800-1000r/min, is dried solid crystal mass, and temperature controls at 40-60 DEG C, and drying time, 1-2h, obtained
To sodium pyrophosphate decahydrate；Continue to be dried 2-4h at 100-160 DEG C, obtain anhydrous sodium pyrophosphate.
The mensuration of common sodium pyrophosphate and instant sodium pyrophosphate dissolution velocity and contrast in 25 DEG C of water:
Take 100ml distilled water (25 DEG C) and pour in 250ml beaker, in magnetic stirring apparatus stirring rotator with
The mixing speed of 220-260rpm does not stop to rotate, and is poured into by 5g sodium pyrophosphate in this rotary distillation water, observes molten
Solution situation, until without visible white granule, and the limpid free from admixture of solution, then it is the dissolving terminal of sodium pyrophosphate,
It is sodium pyrophosphate dissolution time in 25 DEG C of water with stopwatch record required time, is shown in Table 1.
Table 1
| Sample ID | Dissolution time | Remarks |
| Common sodium pyrophosphate | 13 points 25 seconds | There is little caking, it is extremely difficult to molten |
| Instant sodium pyrophosphate | 2 points 25 seconds | Without caking, dissolve rapidly |
Separately take the solution after common sodium pyrophosphate stirs 2 minutes the most respectively with instant sodium pyrophosphate to enter
Row contrast, (left cup is that common sodium pyrophosphate dissolves situation, and right cup is that instant sodium pyrophosphate dissolves feelings to refer to Fig. 1
Condition).
In frozen water, common sodium pyrophosphate and instant sodium pyrophosphate dissolve mensuration and the contrast of situation:
Take 100ml distilled water (0-4 DEG C) and pour in 250ml beaker, 10g sodium pyrophosphate is poured into rapidly
In frozen water, stand 2 minutes.Then beaker is suitably tilted, observe the sodium pyrophosphate at the bottom of cup in beaker
Mobility, if be fully able to flowing, then illustrate this sodium pyrophosphate in frozen water without caking phenomenon, test result
It is shown in Table 2.
Table 2
| Sample ID | Caking phenomenon | Remarks |
| Common sodium pyrophosphate | Caking | The sodium pyrophosphate at the cup end is gathered into block, it is impossible to flow freely |
| Instant sodium pyrophosphate | Without caking | The sodium pyrophosphate at the cup end is loose powder, can flow freely |
Take common sodium pyrophosphate and instant sodium pyrophosphate to pour frozen water solution after 2 minutes into and contrast, refer to figure
2 (left cup is that common sodium pyrophosphate dissolves situation, and right cup is that instant sodium pyrophosphate dissolves situation).
Embodiment 2
1000g pyrophosphoric acid one hydrogen trisodium is dissolved in 1450ml distilled water, then by 330g sodium hydroxide solution
(content is 48%) continuous stirring adds in pyrophosphoric acid one hydrogen three sodium solution, is incubated 60-90 DEG C of reaction 30min.
Mother liquid obtained after 10-20 DEG C of circulating water crystallization, it is centrifuged separating with centrifuge, rotating speed controls
800-1000r/min, is dried solid crystal mass, and temperature controls at 40-60 DEG C, and drying time, 1-2h, obtained
To sodium pyrophosphate decahydrate；Continue to be dried 2-4h at 100-160 DEG C, obtain anhydrous sodium pyrophosphate.
The mensuration of common sodium pyrophosphate and instant sodium pyrophosphate dissolution velocity and contrast in 25 DEG C of water:
Take 100ml distilled water (25 DEG C) and pour in 250ml beaker, in magnetic stirring apparatus stirring rotator with
The mixing speed of 220-260rpm does not stop to rotate, and is poured into by 5g sodium pyrophosphate in this rotary distillation water, observes molten
Solution situation, until without visible white granule, and the limpid free from admixture of solution, then it is the dissolving terminal of sodium pyrophosphate,
It is sodium pyrophosphate dissolution time in 25 DEG C of water with stopwatch record required time, is shown in Table 3.
Table 3
| Sample ID | Dissolution time | Remarks |
| Common sodium pyrophosphate | 13 points 25 seconds | There is little caking, it is extremely difficult to molten |
| Instant sodium pyrophosphate | 2 points 33 seconds | Without caking, dissolve rapidly |
In frozen water, common sodium pyrophosphate and instant sodium pyrophosphate dissolve mensuration and the contrast of situation:
Take 100ml distilled water (0-4 DEG C) and pour in 250ml beaker, 10g sodium pyrophosphate is poured into rapidly
In frozen water, stand 2 minutes.Then beaker is suitably tilted, observe the sodium pyrophosphate at the bottom of cup in beaker
Mobility, if be fully able to flowing, then illustrate this sodium pyrophosphate in frozen water without caking phenomenon, test result
It is shown in Table 4.
Table 4
| Sample ID | Caking phenomenon | Remarks |
| Common sodium pyrophosphate | Caking | The sodium pyrophosphate at the cup end is gathered into block, it is impossible to flow freely |
| Instant sodium pyrophosphate | Without caking | The sodium pyrophosphate at the cup end is loose powder, can flow freely |
Example gained sodium pyrophosphate decahydrate testing result is shown in Table 5；
Example gained anhydrous sodium pyrophosphate testing result is shown in Table 6.
Table 5
Table 6
Claims (3)
1. the production method of an Instant food stage sodium pyrophosphate, it is characterized in that, food stage Sodium Acid Pyrophosphate or pyrophosphoric acid one hydrogen trisodium are dissolved in 50-60 DEG C of water, adding mass fraction to it again is 48% sodium hydroxide solution, after being warming up to 60-90 DEG C, reaction 30-50min, until obtaining the mother solution that mass concentration is 20-40%, to react mother liquid obtained through circulating water, crystallization, centrifugation, obtain sodium pyrophosphate decahydrate after drying, continue to be dried, obtain anhydrous sodium pyrophosphate, i.e. Instant food stage sodium pyrophosphate.
The production method of Instant food stage sodium pyrophosphate the most according to claim 1, it is characterised in that cool down, crystallize circulating water temperature used and be 10-20 DEG C；Centrifugal rotational speed controls at 800-1000r/min；Mother solution is cooled, crystallization, is dried 1-2h after centrifugation at 40-60 DEG C, and the product obtained is sodium pyrophosphate decahydrate；Then continue to be dried 2-4h at 100-160 DEG C, obtain anhydrous sodium pyrophosphate.
The production method of Instant food stage sodium pyrophosphate the most according to claim 1, it is characterised in that described sodium hydroxide is ionic membrane sodium hydroxide.
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| CN106365138A (en) * | 2016-08-31 | 2017-02-01 | 四川金地亚美科技有限公司 | Method for producing instant food-grade disodium dihydrogen pyrophosphate with hollow-tower two-step method |
| CN106882781B (en) * | 2017-03-14 | 2019-03-15 | 镇江江南化工有限公司 | A kind of method decolourized when crude product sodium pyrophosphate purification production sodium pyrophosphate product |
| CN106809811B (en) * | 2017-03-14 | 2019-06-14 | 镇江江南化工有限公司 | A method of sodium pyrophosphate is prepared using crude product sodium pyrophosphate |
| CN113173568B (en) * | 2021-05-07 | 2023-03-14 | 云南莱德福科技有限公司 | Trisodium pyrophosphate anhydride and preparation method 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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| US4873068A (en) * | 1988-09-28 | 1989-10-10 | Fmc Corporation | Process for manufacturing tetrasodium pyrophosphate |
| JP2981247B2 (en) * | 1990-02-09 | 1999-11-22 | 三井化学株式会社 | Method for producing sodium pyrophosphate |
| US4997634A (en) * | 1990-05-02 | 1991-03-05 | Fmc Corporation | Preparation of medium density, fast-dissolving, tetrasodium pyrophosphate |
| RU2134655C1 (en) * | 1998-05-13 | 1999-08-20 | Валовень Вадим Иванович | Tetrasodium pyrophosphate production method |
| RU2162441C1 (en) * | 2000-06-27 | 2001-01-27 | Открытое акционерное общество "РЕАТЭКС" | Method of preparing sodium pyro phosphate |
| CN102951625A (en) * | 2011-08-25 | 2013-03-06 | 贵州省惠水磷酸盐厂 | Sodium pyrophosphate preparation technology |
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