CN108503541A - The production method of stearyl lactate stable sodium agent - Google Patents
The production method of stearyl lactate stable sodium agent Download PDFInfo
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- CN108503541A CN108503541A CN201810197453.6A CN201810197453A CN108503541A CN 108503541 A CN108503541 A CN 108503541A CN 201810197453 A CN201810197453 A CN 201810197453A CN 108503541 A CN108503541 A CN 108503541A
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- China
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- production method
- stearyl lactate
- stable sodium
- reaction kettle
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The production method of stearyl lactate stable sodium agent, mainly comprises the following steps：Lactic acid is added in reaction kettle; 30 33kPa are decompressed to, then stearic acid and calcium carbonate is added to reaction kettle in 90 120min of dehydration under the conditions of 90~96 DEG C; under inert nitrogen gas protection; 130~140 DEG C of heat preservation, carries out 2 3h of esterification, and material is cooled down through decoloration; dichloromethane solution washs 80 100min; it is recrystallized in ethyl acetate solution, dehydrating agent dehydration obtains finished product.
Description
Technical field
The present invention relates to compound producing method more particularly to the production methods of stearyl lactate stable sodium agent.
Background technology
Stearyl lactate sodium is mainly used as dough conditioner, stabilizer, emulsifier, foaming agent, also serves as Bread Quality
Modifier, addition are the 0.5% of wheat flour, can improve the resistance to kneading of dough, improve softness of bread, are used as dried albumen and blister
The highest dosage of agent is 0.5%, is 0.05% or less to liquid and the dosage for freezing albumen.Existing production method compares mostly
Complexity, stearyl lactate sodium reduce by-products content tool as stabilizer, production method quality for improving product quality
There is Important Economic meaning.
Invention content
The purpose of the present invention is to provide the production methods of stearyl lactate stable sodium agent, mainly comprise the following steps：By lactic acid
It is added in reaction kettle, is decompressed to 30-33kPa, then dehydration 90-120min under the conditions of 90~96 DEG C adds to reaction kettle
Enter stearic acid and calcium carbonate, under inert nitrogen gas protection, keeps the temperature 130~140 DEG C, carry out esterification 2-3h, material
It being cooled down through decoloration, dichloromethane solution washs 80-100min, is recrystallized in ethyl acetate solution, and dehydrating agent dehydration obtains finished product,
Wherein, dichloromethane solution mass fraction is 30-34%, and ethyl acetate solution mass fraction is 50-55%.Advantage of the present invention exists
In：Reduce reaction intermediate link, reduces reaction temperature and reaction time, improve product yield.
Specific implementation mode
Example 1：
The production method of stearyl lactate stable sodium agent, mainly comprises the following steps：Lactic acid is added in reaction kettle, is decompressed to
Then stearic acid and calcium carbonate is added to reaction kettle, then at inert gas nitrogen in 30kPa, dehydration 90min under the conditions of 90 DEG C
Under gas shielded, 130 DEG C are kept the temperature, carries out esterification 2h, material is cooled down through decoloration, and dichloromethane solution washs 80min, acetic acid second
It is recrystallized in ester solution, dehydrating agent dehydration obtains finished product, wherein dichloromethane solution mass fraction is 30%, ethyl acetate solution
Mass fraction is 50%.
Product quality
Example 2：
The production method of stearyl lactate stable sodium agent, mainly comprises the following steps：Lactic acid is added in reaction kettle, is decompressed to
Then stearic acid and calcium carbonate is added to reaction kettle, then at inert gas in 33kPa, dehydration 120min under the conditions of 96 DEG C
Under nitrogen protection, 140 DEG C are kept the temperature, carries out esterification 3h, material is cooled down through decoloration, and dichloromethane solution washs 100min, second
It is recrystallized in acetate solution, dehydrating agent dehydration obtains finished product, wherein dichloromethane solution mass fraction is 34%, ethyl acetate
Liquid quality fraction is 55%.
Product quality
It described in above example, is merely preferred embodiments of the present invention, but protection scope of the present invention not office
Be limited to this, any one skilled in the art in the technical scope disclosed by the present invention, the technique according to the invention
Scheme and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. the production method of stearyl lactate stable sodium agent, which is characterized in that mainly comprise the following steps：Reaction kettle is added in lactic acid
In, be decompressed to 30-33kPa, dehydration 90-120min under the conditions of 90~96 DEG C, then to reaction kettle be added stearic acid and
Calcium carbonate keeps the temperature 130~140 DEG C under inert nitrogen gas protection, carries out esterification 2-3h, and material is cooled down through decoloration, and two
Chloromethanes solution washs 80-100min, is recrystallized in ethyl acetate solution, and dehydrating agent dehydration obtains finished product.
2. the production method of stearyl lactate stable sodium agent according to claim 1, which is characterized in that the dichloromethane
Alkane liquid quality fraction is 30-34%.
3. the production method of stearyl lactate stable sodium agent according to claim 1, which is characterized in that the acetic acid second
Ester solution mass fraction is 50-55%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197453.6A CN108503541A (en) | 2018-03-11 | 2018-03-11 | The production method of stearyl lactate stable sodium agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197453.6A CN108503541A (en) | 2018-03-11 | 2018-03-11 | The production method of stearyl lactate stable sodium agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108503541A true CN108503541A (en) | 2018-09-07 |
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ID=63376443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810197453.6A Withdrawn CN108503541A (en) | 2018-03-11 | 2018-03-11 | The production method of stearyl lactate stable sodium agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN108503541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072471A (en) * | 2019-12-13 | 2020-04-28 | 中国日用化学研究院有限公司 | Preparation method of fatty acyl lactic acid or salt thereof |
-
2018
- 2018-03-11 CN CN201810197453.6A patent/CN108503541A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072471A (en) * | 2019-12-13 | 2020-04-28 | 中国日用化学研究院有限公司 | Preparation method of fatty acyl lactic acid or salt thereof |
| CN111072471B (en) * | 2019-12-13 | 2022-07-29 | 中国日用化学研究院有限公司 | Preparation method of fatty acyl lactic acid or salt thereof |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180907 |