CN103880656A - Fatty acid esterifying method - Google Patents
Fatty acid esterifying method Download PDFInfo
- Publication number
- CN103880656A CN103880656A CN201210565654.XA CN201210565654A CN103880656A CN 103880656 A CN103880656 A CN 103880656A CN 201210565654 A CN201210565654 A CN 201210565654A CN 103880656 A CN103880656 A CN 103880656A
- Authority
- CN
- China
- Prior art keywords
- alcohol
- rich
- fatty acid
- stripping gas
- tower
- 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.)
- Pending
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Classifications
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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)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a fatty acid esterifying method. The method is carried out in a tower having one or more partial fillers, the one or more fillers works as a reactor, also works as a stripping section, and can form a catalytic reaction zone, the upper portion of the one or more fillers is fixed with a catalyst, polyphase catalysis on fatty acid and alcohol having a same or higher mole than fatty acid is carried out in the method, vaporization is carried out to generate alcohol-rich gaseous countercurrent in a storage tank, water is removed from the reaction zone through the countercurrent as a stripping gas, the loaded stripping gas is at least partially liquefied at the top end of the tower, tower top products are separated to obtain a water-rich fraction and an alcohol-rich fraction, and the alcohol-rich fraction is used to realize self-esterification and producing the stripping gas.
Description
Technical field
The present invention relates to a kind of fatty acid-esterified method.
Background technology
According to conventional method, the lipid acid of predetermined amount is enzyme in batches.In the method, lipid acid is positioned over a kind of with in the heatable container of Mixing Machine and be heated to about 100 DEG C to 250 DEG C.Add catalyzer, keeping carrying out enzyme reaction under constant temp and under constant alcohols feed conditions.Steam in container is directed in knockout tower, and the water generating during purport at this is separated from the alcohol of common vaporization.Improve transformation efficiency by remove like this water from technique.After described enzymeization has been reacted, further add water and the alcohol of heat extraction remnants.US Patent No.-A6069261 has described a kind of continuous enzyme method of lipid acid, and the assist gas with a kind of " lastingly " in this patent removes and anhydrates continuously.This assist gas, for example hydrogen or nitrogen, do not participate in the chemical reaction from purport reactant.
Summary of the invention
Technical problem to be solved by this invention is: a kind of fatty acid-esterified method is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of fatty acid-esterified method, it is characterized in that, in the tower with one or more part filler, carry out, this filler also has stripping stage effect except the device effect that reacts, and form catalytic reaction zone, at least be fixed with catalyzer on filler top, in the method, carry out the heterogeneous catalyst of the alcohol of lipid acid and identical or molar excess ratio, in storage tank, produce the gaseous state adverse current that is rich in alcohol by vaporization, remove and anhydrate from reaction zone by the adverse current as stripping gas, the stripping gas of load liquefies at least partly at tower top end, overhead product is separated into the cut that is rich in water and the cut that is rich in alcohol, and stripping gas is used and produced to the cut that is rich in alcohol as turning into from purport.
Embodiment
Embodiment 1
A kind of fatty acid-esterified method, it is characterized in that, in the tower with one or more part filler, carry out, this filler also has stripping stage effect except the device effect that reacts, and form catalytic reaction zone, at least be fixed with catalyzer on filler top, in the method, carry out the heterogeneous catalyst of the alcohol of lipid acid and identical or molar excess ratio, in storage tank, produce the gaseous state adverse current that is rich in alcohol by vaporization, remove and anhydrate from reaction zone by the adverse current as stripping gas, the stripping gas of load liquefies at least partly at tower top end, overhead product is separated into the cut that is rich in water and the cut that is rich in alcohol, and stripping gas is used and produced to the cut that is rich in alcohol as turning into from purport.
Claims (1)
1. a fatty acid-esterified method, it is characterized in that, in the tower with one or more part filler, carry out, this filler also has stripping stage effect except the device effect that reacts, and form catalytic reaction zone, at least be fixed with catalyzer on filler top, in the method, carry out the heterogeneous catalyst of the alcohol of lipid acid and identical or molar excess ratio, in storage tank, produce the gaseous state adverse current that is rich in alcohol by vaporization, remove and anhydrate from reaction zone by the adverse current as stripping gas, the stripping gas of load liquefies at least partly at tower top end, overhead product is separated into the cut that is rich in water and the cut that is rich in alcohol, and stripping gas is used and produced to the cut that is rich in alcohol as turning into from purport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565654.XA CN103880656A (en) | 2012-12-24 | 2012-12-24 | Fatty acid esterifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210565654.XA CN103880656A (en) | 2012-12-24 | 2012-12-24 | Fatty acid esterifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103880656A true CN103880656A (en) | 2014-06-25 |
Family
ID=50949826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210565654.XA Pending CN103880656A (en) | 2012-12-24 | 2012-12-24 | Fatty acid esterifying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103880656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108137472A (en) * | 2015-08-14 | 2018-06-08 | 医药保健股份公司 | Spermaceti aliphatic acid, its preparation system and its application |
-
2012
- 2012-12-24 CN CN201210565654.XA patent/CN103880656A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108137472A (en) * | 2015-08-14 | 2018-06-08 | 医药保健股份公司 | Spermaceti aliphatic acid, its preparation system and its application |
| CN108137472B (en) * | 2015-08-14 | 2021-08-03 | 医药保健股份公司 | Spermaceti fatty acid, preparation system and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |