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Refining agent for synthesizing isopropyl myristate and preparation method for isopropyl myristate

A technology of isopropyl myristate and refined preparations, which is applied in the field of organic compound preparation, can solve the problems of unfavorable economic benefits of enterprises, difficulty in reducing costs, and many production equipments, so as to ensure product quality and long-term storage stability, and reduce production The effect of cost and convenient operation

Inactive Publication Date: 2011-11-23
TIANJIN CHEM REAGENT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production method of isopropyl myristate is usually a direct esterification reaction, and the color of the product obtained is yellow, which is difficult to sell as a product, and must be further refined, that is, to carry out a decompression refining treatment step. The problems in this type of preparation method: ( 1) Due to the need to use an expensive high vacuum pump in the decompression refining treatment step, the method has the problems of many production equipment and high expenses, so it is difficult to reduce the cost; Indispensable and very time-consuming production steps in the isopropyl tetra-acid process, therefore, this method has the problems of long production time and low production efficiency, which is not conducive to the improvement of economic benefits of enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of refining agent, described refining agent is mixed by calcium hydroxide, magnesium hydroxide, gac, magnesium sulfate,

[0028] Its preparation method is:

[0029] Calcium hydroxide, magnesium hydroxide, activated carbon, and magnesium sulfate are uniformly mixed in a weight ratio of 1:1:5:1.5, and the total weight is 1 kg.

[0030] A preparation method of isopropyl myristate, the steps are:

[0031] (1) Esterification reaction step: drop into 100 kilograms of myristic acid successively, 75 kilograms of isopropanols, 0.1 kilograms of concentrated sulfuric acid in a 200 liters of reactors with heating device, electric stirring, thermometer water circulation condenser and vacuum oil-water separator Kilogram, under stirring, slight vacuum, heating to boiling reaction at the same time, keep boiling reflux state, continuously separate water from the oil-water separator, until no water is generated, stop heating, and the esterification reaction is terminated.

[003...

Embodiment 2

[0037] A kind of refining agent, described refining agent is mixed by calcium hydroxide, magnesium hydroxide, gac, magnesium sulfate,

[0038] Its preparation method is:

[0039] Calcium hydroxide, magnesium hydroxide, activated carbon, and magnesium sulfate are uniformly mixed, and the weight ratio is 1:1:5:1.5, and the total weight is 1.5 kg.

[0040] A preparation method of isopropyl myristate, the steps are:

[0041] (1) Esterification reaction step: drop into 100 kilograms of myristic acid successively, 75 kilograms of isopropanols, 0.1 kilograms of concentrated sulfuric acid in a 200 liters of reactors with heating device, electric stirring, thermometer water circulation condenser and vacuum oil-water separator Kilogram, under stirring, slight vacuum, heating to boiling reaction at the same time, keep boiling reflux state, continuously separate water from the oil-water separator, until no water is generated, stop heating, and the esterification reaction is terminated. ...

Embodiment 3

[0047] A kind of refining agent, described refining agent is mixed by calcium hydroxide, magnesium hydroxide, gac, magnesium sulfate,

[0048] Its preparation method is:

[0049] Calcium hydroxide, magnesium hydroxide, activated carbon, and magnesium sulfate are uniformly mixed in a weight ratio of 1:1:5:1.5, and the total weight is 1 kg.

[0050] A preparation method of isopropyl myristate, the steps are:

[0051] (1) Esterification reaction step: drop into 100 kilograms of myristic acid successively, 75 kilograms of isopropanols, 0.1 kilograms of concentrated sulfuric acid in a 200 liters of reactors with heating device, electric stirring, thermometer water circulation condenser and vacuum oil-water separator Kilogram, under stirring, slight vacuum, heating to boiling reaction at the same time, keep boiling reflux state, continuously separate water from the oil-water separator, until no water is generated, stop heating, and the esterification reaction is terminated.

[005...

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Abstract

The invention relates to a refining agent for synthesizing isopropyl myristate and a preparation method for the isopropyl myristate. The method for synthesizing the isopropyl myristate comprises esterification, washing, dealcholization, refining and filtration, wherein in the refining step, the refining agent is prepared by mixing calcium hydroxide, magnesium hydroxide, active carbon and magnesium sulfate in a certain proportion. By the invention, the industrial production is facilitated and the production efficiency is improved; and a high vacuum refining step is saved during production, and the input of high vacuum pump equipment is absent, so the equipment investment is saved, the production cost is reduced and the market competitiveness of the product is improved; the refining agent is prepared by mixing the calcium hydroxide, the magnesium hydroxide, the active carbon and the magnesium sulfate in a proportion, the components have the characteristics of low prices and capacity of being easily purchased; meanwhile, the product quality and long-term storage stability are ensured; and the preparation method is easy and convenient to implement, the investment of production equipment is saved and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of organic compound preparation, in particular to a refined preparation for synthesizing isopropyl myristate and a preparation method thereof. Background technique [0002] Isopropyl myristate is a colorless transparent oily liquid, insoluble in water; it can be miscible with organic solvents such as alcohol, ether, methylene chloride, grease, etc., and is usually used as an emulsifier and wetting agent for cosmetics. In industrial production, isopropyl myristate is used more and more widely as an important organic compound, especially as an organic solvent and a raw material for organic synthesis. [0003] The production method of isopropyl myristate is usually a direct esterification reaction, and the color of the product obtained is yellow, which is difficult to sell as a product, and must be further refined, that is, to carry out a decompression refining treatment step. The problems in this type of preparation met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/24C07C67/56C07C67/08
Inventor 张富强
Owner TIANJIN CHEM REAGENT RES INST
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