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Method for preparing 2-ethyl hexahydric aluminum

A technology of ethylhexanoic acid and aluminum acetate, applied in the field of preparation of aluminum 2-ethylhexanoate, can solve the problems of failing to meet market requirements, low product yield, unsuitable for industrialized production, etc. Yield improvement, the effect of large-scale promotion and application

Inactive Publication Date: 2010-05-26
TIANJIN CHEM REAGENT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing synthetic methods are roughly the same and widely used, but the yield of the product synthesized by this method is low, it is not suitable for industrial production, and cannot meet market requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1). Add 60kg of 2-ethylhexanoic acid and 160kg of water into a 1000kg reaction kettle with heating device, electric stirring, thermometer and dropping funnel, then dissolve 90kg of aluminum acetate in 210kg of water to make a solution, and This solution was also added to the reaction kettle. 2-Ethylhexanoic acid aqueous solution and aluminum acetate aqueous solution are mixed, heated to 80°C to obtain a mixed solution;

[0020] (2). While stirring, the sodium hydroxide aqueous solution that the sodium hydroxide of 30kg and the water of 80kg are added to the mixed solution is made, after adding, then stir and react for 1.5 hours to obtain the crude product;

[0021] (3). Suction filter the crude product and dry it naturally to get the finished product of aluminum 2-ethylhexanoate.

Embodiment 2

[0023] (1). Add 60kg of 2-ethylhexanoic acid and 140kg of water into a 1000kg reaction kettle with heating device, electric stirring, thermometer and dropping funnel, then dissolve 100kg of aluminum acetate in 200kg of water to make a solution, and This solution was also added to the reaction kettle. 2-Ethylhexanoic acid aqueous solution and aluminum acetate aqueous solution are mixed, heated to 80°C to obtain a mixed solution;

[0024] (2). While stirring, the sodium hydroxide aqueous solution that the sodium hydroxide of 30kg and the water of 70kg are added to the mixed solution is made, after the addition is completed, then stir and react for 2 hours to obtain the crude product;

[0025] (3). Suction filter the crude product and dry it naturally to get the finished product of aluminum 2-ethylhexanoate.

Embodiment 3

[0027] (1). Add 60kg of 2-ethylhexanoic acid and 120kg of water into a 1000kg reaction kettle with heating device, electric stirring, thermometer and dropping funnel, then dissolve 120kg of aluminum acetate in 220kg of water to make a solution, and This solution was also added to the reaction kettle. 2-Ethylhexanoic acid aqueous solution and aluminum acetate aqueous solution are mixed, heated to 80°C to obtain a mixed solution;

[0028] (2). While stirring, the sodium hydroxide aqueous solution that the sodium hydroxide of 30kg and the water of 60kg are added to the mixed solution is made, after the addition is completed, then stir and react for 2.5 hours to obtain the crude product;

[0029] (3). Suction filter the crude product and dry it naturally to get the finished product of aluminum 2-ethylhexanoate.

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Abstract

The invention relates to a method for preparing 2-ethyl hexahydric aluminum, which comprises the following preparation steps of: (1) mixing 2-ethyl caproic acid aqueous solution and an aluminum acetate aqueous solution in a reactor and heating to 80 DEG C to obtain a mixed solution; (2) adding a sodium hydroxide aqueous solution into the mixed solution; after the addition is finished, stirring to react for 1.5-2.5 hours to obtain a coarse product; (3) filtering and airing the coarse product to obtain a 2-ethyl hexahydric aluminum finished product. By carrying out comparison research on the traditional process for synthesizing the 2-ethyl hexahydric aluminum, the optimal reaction condition is confirmed; accordingly, the reaction yield is improved, and the method is more suitable for the requirement of industrial production, thereby achieving the market requirement and obtaining successful export. In addition, the market competitive capacity of enterprises is improved, and the product can be greatly popularized and applied in the market.

Description

technical field [0001] The invention belongs to the field of organic compound preparation, in particular to a preparation method of aluminum 2-ethylhexanoate. Background technique [0002] Aluminum 2-ethylhexanoate is a strong thickener developed since the 1950s. It is widely used in some industrial oils such as grease, thickened benzene, gasoline and turpentine, as well as fabric waterproofing and paints and coatings. . The strength of the film such as paint and coating thickened by it increases, and it has better adhesion to metal. In addition, it is also used in thin-layer analysis of chromophores and additives of rocket propellants, which can effectively improve the combustion value of fuel. At present, the synthesis method of aluminum 2-ethylhexanoate has been reported in some documents at home and abroad. These existing synthesis methods are roughly the same and widely used, but the yield of the product synthesized by this method is low, which is not suitable for in...

Claims

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Application Information

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IPC IPC(8): C07C53/126C07C51/41
Inventor 张富强
Owner TIANJIN CHEM REAGENT RES INST