CN1133878A - Process for preparing semi-saturated fatty acid - Google Patents
Process for preparing semi-saturated fatty acid Download PDFInfo
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- CN1133878A CN1133878A CN 96100070 CN96100070A CN1133878A CN 1133878 A CN1133878 A CN 1133878A CN 96100070 CN96100070 CN 96100070 CN 96100070 A CN96100070 A CN 96100070A CN 1133878 A CN1133878 A CN 1133878A
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- butter
- iodine number
- distillation
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Abstract
A process for preparing semi-saturated fatty acid comprises conventionally refining tallow, hydrogenating part of refined tallow to produce hardened oil with iodine value less than 2, mixing the hardened oil with the rest of refined tallow to obtain mixture with iodine value equal to 36-38, hydrolysis and distillation, and features available raw material and high output.
Description
Present method relates to the production method of semi-saturation lipid acid.
Semi-saturation lipid acid is styrene-butadiene rubber(SBR) polymeric emulsifier special.Its production method generally has two kinds: a kind of is to be hydrolyzed, to distill and produce with the butter that hang down iodine number (36-38); Another kind is with the selective hydrogenation of high iodine number butter, is hydrolyzed, distills production semi-saturation lipid acid after 36-38 is fallen in iodine number.The problem that these two kinds of methods exist is: its quality of the product that first method is produced meets the requirements, but raw material sources seldom, thereby can not produce the output of meeting the need of market; Its specification of quality of the product that second method is produced does not reach requirement.
Variety of issue at aforesaid method exists the invention provides a kind of new semi-saturation lipid acid production method.This method can be produced qualified semi-saturation lipid acid with the butter of high iodine number (as iodine number more than 54), the raw material sources of semi-saturation lipid acid have so just been widened, on the basis that guarantees quality product, enlarge semi-saturation lipid acid output simultaneously, solved the present situation of semi-saturation lipid acid market shortages.
The production method of semi-saturation lipid acid provided by the present invention is:
1, the raw material butter are carried out refinement treatment according to a conventional method, the butter after the processing are wanted and can be produced winterized stearin by hydrogenation;
2, the butter of a part after 1 refinement treatment are carried out hydrogenation and produce winterized stearin, the iodine number of winterized stearin is less than 2;
3, butter and winterized stearin after 1,2 processing are mixed in proportion, its blending ratio is for making mixed stock oil iodine number at 36-38 ℃.
4, mixed raw materials profit in 3 is separated, distillation, the lipid acid of producing is semi-saturation lipid acid.
Wherein, the index of used raw material butter is:
Project unit's index
Moisture content % 1-2
Acid number mg/g is less than 10
Impurity % 0.5-1.5
Saponification value mg/g 190-200
Unsaponifiables %＜1.5
Iodine number g/100g 36-60
Sulphur ppm 40
Phosphorus ppm 10
Wherein, hydrolysising condition be in pressure 6-50atm, temperature 150-250 ℃ of following hydrolysis, distillation pressure is at 4-20mmHg, temperature is 230-240 ℃ of down distillation.
Use method production semi-saturation lipid acid provided by the present invention, solved the existing problem of existing method, enlarged the market of raw material, improved output, guaranteed quality product simultaneously again.Its specification of product of producing with method of the present invention meets following index:
Project unit's index
Color and luster Lovibond cell 5 R0.5Y0.5
Iodine g/100g 38-46
Neutralization value mg/g 202-207
Unsaponifiables %＜1.5
Fusing point ℃ 46-47
Moisture content %＜0.3
Index of polyphenol＜0.9
Cu and Mn content PPm＜5.
Claims (3)
1, a kind of new method for preparing semi-saturation lipid acid, wherein:
(1) but the raw material butter are carried out the butter hydrogenation of refinement treatment after handle produce winterized stearin;
(2) will the butter hydrogenation production iodine number of part after (1) refinement treatment less than 2 winterized stearin;
(3) will be mixed in proportion through butter and the winterized stearin after handle (1) and (2), its blending ratio is 36-38 for making mixed stock oil iodine number;
(4) will separate through (3) mixed raw materials profit, distill and get final product.
2, the described method of claim 1, wherein, described its index of raw material butter is:
Project unit's index
Moisture content % 1-2,
Acid number mg/g is less than 10,
Impurity % 0.5-1.5,
Saponification value mg/g 190-200,
Unsaponifiables %＜1.5,
Iodine number g/100g 36-60,
Sulphur ppm 40,
Phosphorus ppm 10.
3, the described method of claim 1, wherein, described hydrolysis, distillation condition are: 150-250 ℃ of following hydrolysis, distillation pressure is at 4-20mmHg in pressure 6-50atm, temperature, and temperature is 230-240 ℃ of distillation down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100070 CN1133878A (en) | 1996-01-04 | 1996-01-04 | Process for preparing semi-saturated fatty acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100070 CN1133878A (en) | 1996-01-04 | 1996-01-04 | Process for preparing semi-saturated fatty acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1133878A true CN1133878A (en) | 1996-10-23 |
Family
ID=5116469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96100070 Pending CN1133878A (en) | 1996-01-04 | 1996-01-04 | Process for preparing semi-saturated fatty acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1133878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220318B (en) * | 2007-12-13 | 2010-08-11 | 张建旺 | Method for converting sheep oil and fat into vegetable oil by dehydrogenation |
| CN108192739A (en) * | 2017-12-19 | 2018-06-22 | 如皋市傲东化工有限公司 | A kind of fatty acid formulation for surfactant production |
| WO2022023588A1 (en) | 2020-07-29 | 2022-02-03 | Aplicaciones Tecnologicas, S.A | Measuring the impedance in grounding systems |
-
1996
- 1996-01-04 CN CN 96100070 patent/CN1133878A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220318B (en) * | 2007-12-13 | 2010-08-11 | 张建旺 | Method for converting sheep oil and fat into vegetable oil by dehydrogenation |
| CN108192739A (en) * | 2017-12-19 | 2018-06-22 | 如皋市傲东化工有限公司 | A kind of fatty acid formulation for surfactant production |
| WO2022023588A1 (en) | 2020-07-29 | 2022-02-03 | Aplicaciones Tecnologicas, S.A | Measuring the impedance in grounding systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |