CN104673500A - Process for preparing high-content unsaturated fatty acids - Google Patents
Process for preparing high-content unsaturated fatty acids Download PDFInfo
- Publication number
- CN104673500A CN104673500A CN201510014890.6A CN201510014890A CN104673500A CN 104673500 A CN104673500 A CN 104673500A CN 201510014890 A CN201510014890 A CN 201510014890A CN 104673500 A CN104673500 A CN 104673500A
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- China
- Prior art keywords
- urea
- content
- fatty acids
- unsaturated fatty
- inclusion
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/002—Sources of fatty acids, e.g. natural glycerides, characterised by the nature, the quantities or the distribution of said acids
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a process for preparing high-content unsaturated fatty acids. The process comprises the following steps: grinding a proper amount of urea, adding low-content fatty acid raw material according to the weight ratio of the urea powder to fatty acids being 2.0:1.0, thereby obtaining a mixture; adding 5-10 percent of a nucleation agent, carrying out an inclusion reaction for 6-8 hours, thereby obtaining crystals; centrifuging the obtained crystals, thereby obtaining a high-content product and urea; and dissolving and separating the obtained urea, and reutilizing the urea. The traditional production process is improved, a nucleation agent is added into urea, only crystallization and inclusion need to be performed at normal temperature, the production cost is greatly reduced, the inclusion efficiency of the urea is improved, and the oil containing high-content unsaturated fatty acids is prepared. According to the method, the input cost of equipment can be reduced, a solvent residue problem is solved, and the method has remarkable economical benefits.
Description
Technical field
The present invention relates to the preparation field of unsaturated fatty acids, be specifically related to a kind of preparation technology of high-content unsaturated fatty acids.
Background technology
Urea adduct method is a kind of traditional method of enrichment unsaturated fatty acids, and its advantage is that required starting material are cheap, and cost is lower, and equipment is simple.But traditional urea adduct method needs to use a large amount of urea and solvent (ethanol or methyl alcohol), need with low temperature or very low temperature equipment, and complex operation, solvent recuperation cost is higher, and the quality product of gained is not high.
Summary of the invention
For solving the problem, the invention provides a kind of preparation technology of high-content unsaturated fatty acids, traditional production technique is improved, a kind of crystallization in motion agent is added in urea, only need crystallization inclusion at normal temperatures, reduce production cost largely, not only increase the inclusion efficiency of urea, and prepare the oil product of high-content unsaturated fatty acids.Present method not only can reduce equipment investment cost but also there is not problem of solvent residual for this reason, has significant economic benefit.
For achieving the above object, the technical scheme that the present invention takes is:
A preparation technology for high-content unsaturated fatty acids, comprises the steps:
S1, get after appropriate urea pulverizes, in urea powder: fatty acid wt ratio be 2.0: 1.0 ratio add low levels raw material of fatty acid, obtain mixture;
Add the crystallization in motion agent of 5%-10% in the mixture of S2, past step S1 gained, carry out inclusion reaction, the reaction times is 6h-8h, obtains xln;
S3, by centrifugal for the xln of step S2 gained, obtain high-content product and urea;
S4, to reuse after the urea separated and dissolved of step S3 gained.
As preferably, the temperature of described inclusion reaction is 18 ~ 20 DEG C.
As preferably, the temperature of described inclusion reaction is 0 ~ 6 DEG C.
The present invention has following beneficial effect:
Traditional production technique is improved, in urea, adds a kind of crystallization in motion agent, only need crystallization inclusion at normal temperatures, reduce production cost largely, not only increase the inclusion efficiency of urea, and prepare the oil product of high-content unsaturated fatty acids.Present method not only can reduce equipment investment cost but also there is not problem of solvent residual for this reason, has significant economic benefit.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the embodiment of the present invention.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, embodiments provide a kind of preparation technology of high-content unsaturated fatty acids, it is characterized in that, comprise the steps:
S1, get after appropriate urea pulverizes, in urea powder: fatty acid wt ratio be 2.0: 1.0 ratio add low levels raw material of fatty acid, obtain mixture;
Add the crystallization in motion agent of 5%-10% in the mixture of S2, past step S1 gained, carry out inclusion reaction, the reaction times is 6h-8h, obtains xln;
S3, by centrifugal for the xln of step S2 gained, obtain high-content product and urea;
S4, to reuse after the urea separated and dissolved of step S3 gained.
Embodiment 1
The lipid acid prepared with the high-quality Semen Flos Carthami crude oil in Xinjiang is for raw material, wherein conjugated linoleic acid CLA content is about 62.2%, reaction conditions is temperature 18 ~ 20 DEG C, crystallization in motion agent 5%, urea: CLA weight ratio 2.0: 1.0, reaction times 12h, the total content of CLA in lipid acid can be made to bring up to 80.9% from 62.2%, CLA content improves 18.7%, and the yield of product is 28.5%.
Embodiment 2
The lipid acid that Yi Anchovies fish oil prepares is raw material, wherein unsaturated fatty acids (EPA+DHA is main) content is about 33.7%, temperature be about 15 DEG C, urea: fish oil weight ratio is 1.5: 1.0, crystallization in motion agent 5%, inclusion time 6h, the fish oil that unsaturated fatty acid content is about 54.9% can be obtained, unsaturated fatty acid content improves 21.2%, and fish oil product yield is about 35.4%.
Embodiment 3
The lipid acid that Yi Anchovies fish oil prepares is raw material, wherein unsaturated fatty acids (EPA+DHA is main) content is about 33.7%, at temperature 0 ~ 6 DEG C, urea: fish oil weight ratio is 2.0: 1.0, crystallization in motion agent 10%, inclusion time 8h, can obtain the fish oil that unsaturated fatty acid content is about 80.1%, unsaturated fatty acid content improves 46.4%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a preparation technology for high-content unsaturated fatty acids, is characterized in that, comprises the steps:
S1, get after appropriate urea pulverizes, in urea powder: fatty acid wt ratio be 2.0: 1.0 ratio add low levels raw material of fatty acid, obtain mixture;
Add the crystallization in motion agent of 5%-10% in the mixture of S2, past step S1 gained, carry out inclusion reaction, the reaction times is 6h-8h, obtains xln;
S3, by centrifugal for the xln of step S2 gained, obtain high-content product and urea;
S4, to reuse after the urea separated and dissolved of step S3 gained.
2. the preparation technology of a kind of high-content unsaturated fatty acids according to claim 1, is characterized in that, the temperature of described inclusion reaction is 18 ~ 20 DEG C.
3. the preparation technology of a kind of high-content unsaturated fatty acids according to claim 1, is characterized in that, the temperature of described inclusion reaction is 0 ~ 6 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014890.6A CN104673500A (en) | 2015-01-09 | 2015-01-09 | Process for preparing high-content unsaturated fatty acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014890.6A CN104673500A (en) | 2015-01-09 | 2015-01-09 | Process for preparing high-content unsaturated fatty acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104673500A true CN104673500A (en) | 2015-06-03 |
Family
ID=53309100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014890.6A Pending CN104673500A (en) | 2015-01-09 | 2015-01-09 | Process for preparing high-content unsaturated fatty acids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104673500A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845362A (en) * | 2010-06-22 | 2010-09-29 | 中南林业科技大学 | Method for gathering oleic acid from tea-seed oil |
-
2015
- 2015-01-09 CN CN201510014890.6A patent/CN104673500A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845362A (en) * | 2010-06-22 | 2010-09-29 | 中南林业科技大学 | Method for gathering oleic acid from tea-seed oil |
Non-Patent Citations (3)
| Title |
|---|
| 张桂梅等: "多不饱和脂肪酸的富集纯化方法及研究进展", 《热带农业科技》 * |
| 张爱军等: "改进的尿素包合法富集葵花籽油中亚油酸的研究", 《中国油脂》 * |
| 樊莉等: "尿素包合法及其在多价不饱和脂肪酸分离纯化中的应用", 《兵团教育学院学报》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |
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| RJ01 | Rejection of invention patent application after publication |