CN101143820A - Method for producing isopropyl myristate - Google Patents
Method for producing isopropyl myristate Download PDFInfo
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- CN101143820A CN101143820A CNA2007100700422A CN200710070042A CN101143820A CN 101143820 A CN101143820 A CN 101143820A CN A2007100700422 A CNA2007100700422 A CN A2007100700422A CN 200710070042 A CN200710070042 A CN 200710070042A CN 101143820 A CN101143820 A CN 101143820A
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- isopropyl myristate
- esterification
- parts
- tetradecanoic acid
- production method
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Abstract
The invention discloses a production method of isopropyl myristate, which includes four steps. Firstly, myristic acid (tetradecanoic acid) is added with isopropanol and catalyzer TiO2 for esterification; secondly, the esterified product is dealcoholized; thirdly, the catalyzer is recovered; fourthly, the recovered catalyzer product is rectified, and therefore the isopropyl myristate of the invention is produced. The isopropyl myristate of the invention has the advantages of innocuity, no causticity, easy emulsification, easy degradation, environmental protection and safe storage and transporation. The isopropyl myristate of the invention can not only be applied to cosmetic and daily chemical industries but also be used as the solvent of pyrethrins insecticides.
Description
Technical field
The present invention relates to a kind of production method of Isopropyl myristate.
Background technology
In the pyrethrins insecticide, the ratio of cream preparation is very big.Used thinner mainly is toluene, dimethylbenzene in the missible oil solvent, can account for more than 80% of cream preparation total content, it has anesthetic action to central nervous system, mucous membrane there is hormesis, headache, dizzy, excitement or intoxication, drowsiness etc. can appear in the poisoner, and severe patient also can have a convulsion, go into a coma.It derives from oil, uses the back can not degrade for a long time in soil, causes environmental pollution, does not meet current requirements of green environmental protection.And along with the continuous rising of oil price, the price of thinner rises thereupon, thereby causes the production cost of sterilant, sterilant and the cost that uses on agricultural is difficult to control.
Summary of the invention
Technical problem to be solved by this invention is to propose a kind of safe in utilization, little to environmental influence, Isopropyl myristate production method that product purity is high.
For solving the problems of the technologies described above, the production method of a kind of Isopropyl myristate of the present invention comprises the steps: 1, adds Virahol and catalyzer TiO in tetradecanoic acid (TETRADECONIC ACID)
2Carry out esterification; 2, the esterification gains are carried out dealcoholysis; 3 and then carry out catalyst recovery; 4, gains after the catalyst recovery are carried out rectifying, can get tetradecanoic acid isopropyl ester of the present invention.
The production method of above-mentioned a kind of Isopropyl myristate is separated purification to it earlier before to the tetradecanoic acid esterification.
The production method of above-mentioned a kind of Isopropyl myristate adopts water vapour film method for dealcoholized, and the crude product after esterification is finished with the overheated steam dealcoholysis of vaporizing, is sloughed Virahol and grease smell in the product in a film tower.
The production method of above-mentioned a kind of Isopropyl myristate, it comprises the steps: 1, being 95%-98% with 100 parts of content, tetradecanoic acid (TETRADECONIC ACID) separates purification, purity is 90 parts of 99.5% tetradecanoic acids, simultaneously 10 parts in byproduct; 2, in 90 part of 99.5% tetradecanoic acid, add 30 parts of Virahols and 0.01 part of catalyzer TiO
2Carry out esterification, isolate 7 parts of water simultaneously; 3, the esterification gains are carried out dealcoholysis, isolate 7 parts of Virahols; 4, carry out catalyst recovery, reclaim 0.01 part of catalyzer; 4, gains after the catalyst recovery are carried out rectifying, remove 0.5 part of residue, can get tetradecanoic acid isopropyl ester of the present invention.
The present invention is owing to adopted technique scheme, it adopts the tetradecanoic acid (TETRADECONIC ACID) that extracts from food oils (as Oleum Cocois) to form through esterification, rectifying, fragrance with natural plant grease, do not solidify under the normal temperature, water insoluble, energy and immiscible organic solvent, easily emulsification, easily degraded, and nontoxic, non-corrosiveness, environmentally friendly, be the ideal substitute of conventional solvent (toluene, dimethylbenzene).It has higher boiling point, flash-point, belongs to non-dangerous goods, storing safety.Because the raising of product physical and chemical index except that being used for makeup daily use chemicals industry, also can be applicable to pyrethrins insecticide and makes solvent.Tetradecanoic acid is separated purification (operation of usable highly effective separation column), can guarantee the purity of raw material, make tetradecanoic acid purity reach 99.5%.Adopt water vapour film method for dealcoholized, can remove Virahol and grease smell in the product, make product not have any peculiar smell, make isopropanol content less than 10ppm.
Description of drawings
Fig. 1 is the process flow sheet of embodiment one;
Fig. 2 is the process flow sheet of embodiment two.
Embodiment
(1), embodiment one:
With 100 part of 95% tetradecanoic acid (TETRADECONIC ACID) is raw material, adopt step as shown in Figure 1, make 105.5 parts of Isopropyl myristates of the present invention, wherein, 10 parts of byproducts of fractionation purification gained are 3 parts of lauric acid, 5 parts of palmitinic acids and 2 parts of mixtures that tetradecanoic acid is formed.
(2), embodiment two:
With 100 part of 95% tetradecanoic acid (TETRADECONIC ACID) is raw material, adopts step as shown in Figure 2, makes 105.5 parts of Isopropyl myristates of the present invention.
Claims (4)
1. the production method of an Isopropyl myristate is characterized in that, it comprises the steps: 1, adds Virahol and catalyzer TiO in tetradecanoic acid
2Carry out esterification; 2, the esterification gains are carried out dealcoholysis; 3 and then carry out catalyst recovery; 4, gains after the catalyst recovery are carried out rectifying, can get tetradecanoic acid isopropyl ester of the present invention.
2. the production method of a kind of Isopropyl myristate as claimed in claim 1 is characterized in that, earlier it is separated purification before to the tetradecanoic acid esterification.
3. the production method of a kind of Isopropyl myristate as claimed in claim 1 or 2, it is characterized in that, adopt water vapour film method for dealcoholized, the crude product after esterification is finished with the overheated steam dealcoholysis of vaporizing, is sloughed Virahol and grease smell in the product in a film tower.
4. the production method of a kind of Isopropyl myristate as claimed in claim 1 or 2, it is characterized in that, the tetradecanoic acid (TETRADECONIC ACID) that it comprises the steps: 1, be 95%-98% with 100 parts of content separates purification, purity is 90 parts of 99.5% tetradecanoic acids, simultaneously 10 parts in byproduct; 2, in 90 part of 99.5% tetradecanoic acid, add 30 parts of Virahols and 0.01 part of catalyzer TiO
2Carry out esterification, isolate 7 parts of water simultaneously; 3, the esterification gains are carried out dealcoholysis, isolate 7 parts of Virahols; 4, carry out catalyst recovery, reclaim 0.01 part of catalyzer; 4, gains after the catalyst recovery are carried out rectifying, remove 0.5 part of residue, can get tetradecanoic acid isopropyl ester of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100700422A CN100540525C (en) | 2007-07-17 | 2007-07-17 | A kind of production method of Isopropyl myristate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100700422A CN100540525C (en) | 2007-07-17 | 2007-07-17 | A kind of production method of Isopropyl myristate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101143820A true CN101143820A (en) | 2008-03-19 |
| CN100540525C CN100540525C (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100700422A Expired - Fee Related CN100540525C (en) | 2007-07-17 | 2007-07-17 | A kind of production method of Isopropyl myristate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100540525C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675615A (en) * | 2020-06-11 | 2020-09-18 | 南京大学 | Preparation method and device of methyl myristate |
| CN112679354A (en) * | 2020-12-31 | 2021-04-20 | 浙江物美生物科技有限公司 | Production process of isopropyl myristate |
-
2007
- 2007-07-17 CN CNB2007100700422A patent/CN100540525C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675615A (en) * | 2020-06-11 | 2020-09-18 | 南京大学 | Preparation method and device of methyl myristate |
| CN112679354A (en) * | 2020-12-31 | 2021-04-20 | 浙江物美生物科技有限公司 | Production process of isopropyl myristate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100540525C (en) | 2009-09-16 |
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Application publication date: 20080319 Assignee: Haiyan County Fine-Chem Co., Ltd. Assignor: He Guanyin|Fang Haiming Contract record no.: 2010330000452 Denomination of invention: Method for producing isopropyl myristate Granted publication date: 20090916 License type: Exclusive License Record date: 20100409 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20160717 |