CN105461764A - Method for refining alkyl polyglycoside - Google Patents
Method for refining alkyl polyglycoside Download PDFInfo
- Publication number
- CN105461764A CN105461764A CN201510911751.3A CN201510911751A CN105461764A CN 105461764 A CN105461764 A CN 105461764A CN 201510911751 A CN201510911751 A CN 201510911751A CN 105461764 A CN105461764 A CN 105461764A
- Authority
- CN
- China
- Prior art keywords
- alkyl polyglycoside
- fatty alcohol
- distillation
- purification
- polyglycoside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
Abstract
The invention discloses a method for refining alkyl polyglycoside. The method comprises the following steps: 1) rough processing: taking glucose and fatty alcohol to be processed into crude alkyl polyglycoside under the action of an acid catalyst at the temperature of 90-100 DEG C; 2) degassing: evaporating alkyl polyglycoside obtained through rough processing on a film evaporator, and removing impurities in crude alkyl polyglycoside in a gaseous manner to obtain secondary refined alkyl polyglycoside; 3) degreasing: distilling secondary refined alkyl polyglycoside by using a molecular distillation method, removing fatty alcohol in secondary refined alkyl polyglycoside first, and collecting left finished alkyl polyglycoside, wherein the distilled fatty alcohol can be recycled again through cooling and used for preparing crude alkyl polyglycoside in the step 1; 4) fine processing: conducting second molecular distillation on obtained finished alkyl polyglycoside, rising the distillation temperature, and removing various types of alcohol in finished alkyl polyglycoside so as to obtain refined alkyl polyglycoside. According to the method, the operation is simple, the prepared alkyl polyglycoside is high in purity, good in quality and high in yield, and the production process is environment-friendly and pollution-free.
Description
Technical field
The present invention relates to energy field, be specifically related to a kind of process for purification of alkyl polyglycoside.
Background technology
Alkyl polyglycoside is also alkyl glycoside, APG for short, synthesized by renewable resources natural fat alcohol and glucose, it is the more comprehensive new non-ionic surfactants of a kind of performance, have the characteristic of conventional nonionic and anion surfactant concurrently, having high surface, good ecological security and intermiscibility, is internationally recognized first-selection " green " functional surfactant.
The alkyl polyglycoside produced in prior art is due to the difference of production technique, and cause the quality of alkyl polyglycoside product also just to differ, Problems existing is also relatively many, as purity is poor, the impurity mixed is more, and processing step is many, troublesome poeration, the synthetic ratio of product is low, causes the wasting of resources larger.
Summary of the invention
The object of the present invention is to provide a kind of simple to operate, process for purification of producing the alkyl polyglycoside that product purity is high, quality good, product yield is large, production technique is environment friendly and pollution-free.
Technical scheme of the present invention is, a kind of process for purification of alkyl polyglycoside, comprises the steps:
1) rough processing: get glucose and fatty alcohol an acidic catalyst act on the temperature of 90-110 DEG C under be processed into alkyl polyglycoside crude product;
2) degassed: the alkyl polyglycoside of roughing to be placed on thin-film evaporator and to evaporate, the impurity in alkyl polyglycoside crude product is removed with gaseous form, obtain time fine work alkyl polyglycoside;
3) degreasing: use the method for molecular distillation to distill to secondary fine work alkyl polyglycoside, fatty alcohol in secondary fine work alkyl polyglycoside is removed in advance, leave finished product alkyl polyglycoside, the fatty alcohol distilled is reclaimed by cooling and is reused for producing of alkyl polyglycoside crude product in step 1;
4) precision work: the alkyl polyglycoside finished product obtained is carried out to second time molecular distillation and raises distillation temperature, makes all kinds of alcohol in alkyl polyglycoside finished product remove, obtains alkyl polyglycoside fine work.
In a preferred embodiment of the present invention, in described step 1, an acidic catalyst is Witco 1298 Soft Acid.
In a preferred embodiment of the present invention, in described step 2, the vaporization temperature of thin-film evaporator is 135-170 DEG C.
In a preferred embodiment of the present invention, the distillation temperature of described step 3 Middle molecule distillation is 155-200 DEG C.
In a preferred embodiment of the present invention, the distillation temperature raised in described step 4 is 30-50 DEG C.
Of the present invention is a kind of process for purification of alkyl polyglycoside, and the present invention is simple to operate, produce that product purity is high, quality good, product yield is large, production technique is environment friendly and pollution-free.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Of the present invention is a kind of process for purification of alkyl polyglycoside, comprises the steps:
1) rough processing: get glucose and fatty alcohol an acidic catalyst act on the temperature of 90-110 DEG C under be processed into alkyl polyglycoside crude product;
2) degassed: the alkyl polyglycoside of roughing to be placed on thin-film evaporator and to evaporate, the impurity in alkyl polyglycoside crude product is removed with gaseous form, obtain time fine work alkyl polyglycoside;
3) degreasing: use the method for molecular distillation to distill to secondary fine work alkyl polyglycoside, fatty alcohol in secondary fine work alkyl polyglycoside is removed in advance, leave finished product alkyl polyglycoside, the fatty alcohol distilled is reclaimed by cooling and is reused for producing of alkyl polyglycoside crude product in step 1;
4) precision work: the alkyl polyglycoside finished product obtained is carried out to second time molecular distillation and raises distillation temperature, makes all kinds of alcohol in alkyl polyglycoside finished product remove, obtains alkyl polyglycoside fine work.
Further, in described step 1, an acidic catalyst is Witco 1298 Soft Acid.
Further, in described step 2, the vaporization temperature of thin-film evaporator is 135-170 DEG C.
Further, the distillation temperature of described step 3 Middle molecule distillation is 155-200 DEG C.
Further, the distillation temperature raised in described step 4 is 30-50 DEG C.
Of the present invention is a kind of process for purification of alkyl polyglycoside, and by the way, the present invention is simple to operate, produce that product purity is high, quality good, product yield is large, production technique is environment friendly and pollution-free.
The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. a process for purification for alkyl polyglycoside, is characterized in that: comprise the steps:
1) rough processing: get glucose and fatty alcohol an acidic catalyst act on the temperature of 90-110 DEG C under be processed into alkyl polyglycoside crude product;
2) degassed: the alkyl polyglycoside of roughing to be placed on thin-film evaporator and to evaporate, the impurity in alkyl polyglycoside crude product is removed with gaseous form, obtain time fine work alkyl polyglycoside;
3) degreasing: use the method for molecular distillation to distill to secondary fine work alkyl polyglycoside, fatty alcohol in secondary fine work alkyl polyglycoside is removed in advance, leave finished product alkyl polyglycoside, the fatty alcohol distilled is reclaimed by cooling and is reused for producing of alkyl polyglycoside crude product in step 1;
4) precision work: the alkyl polyglycoside finished product obtained is carried out to second time molecular distillation and raises distillation temperature, makes all kinds of alcohol in alkyl polyglycoside finished product remove, obtains alkyl polyglycoside fine work.
2. the process for purification of alkyl polyglycoside according to claim 1, is characterized in that: in described step 1, an acidic catalyst is Witco 1298 Soft Acid.
3. the process for purification of alkyl polyglycoside according to claim 1, is characterized in that: in described step 2, the vaporization temperature of thin-film evaporator is 135-170 DEG C.
4. the process for purification of alkyl polyglycoside according to claim 1, is characterized in that: the distillation temperature of described step 3 Middle molecule distillation is 155-200 DEG C.
5. the process for purification of alkyl polyglycoside according to claim 1, is characterized in that: the distillation temperature raised in described step 4 is 30-50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911751.3A CN105461764A (en) | 2015-12-11 | 2015-12-11 | Method for refining alkyl polyglycoside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911751.3A CN105461764A (en) | 2015-12-11 | 2015-12-11 | Method for refining alkyl polyglycoside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105461764A true CN105461764A (en) | 2016-04-06 |
Family
ID=55599972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911751.3A Pending CN105461764A (en) | 2015-12-11 | 2015-12-11 | Method for refining alkyl polyglycoside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105461764A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041599A (en) * | 1988-10-05 | 1990-04-25 | 亨克尔西合股份公司 | The method that directly prepares alkylglycoside |
| CN1315327A (en) * | 2000-03-30 | 2001-10-03 | 中国石油天然气股份有限公司吉林石化分公司研究院 | Dealcoholizing process for preparing alkylglucoside |
| CN102786559A (en) * | 2011-05-19 | 2012-11-21 | 扬州晨化科技集团有限公司 | Preparation method of octyl glucopyranoside |
| CN103319549A (en) * | 2013-07-18 | 2013-09-25 | 扬州大学 | Synthetic method of alkyl glycoside |
-
2015
- 2015-12-11 CN CN201510911751.3A patent/CN105461764A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041599A (en) * | 1988-10-05 | 1990-04-25 | 亨克尔西合股份公司 | The method that directly prepares alkylglycoside |
| CN1315327A (en) * | 2000-03-30 | 2001-10-03 | 中国石油天然气股份有限公司吉林石化分公司研究院 | Dealcoholizing process for preparing alkylglucoside |
| CN102786559A (en) * | 2011-05-19 | 2012-11-21 | 扬州晨化科技集团有限公司 | Preparation method of octyl glucopyranoside |
| CN103319549A (en) * | 2013-07-18 | 2013-09-25 | 扬州大学 | Synthetic method of alkyl glycoside |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160406 |