Method for preparing surface active agent by using porous material adsorptive catalyst

A technology for surfactants and porous materials, applied in organic chemistry methods, chemical instruments and methods, sugar derivatives, etc., can solve problems affecting the quality of surfactants, avoid the generation of neutralized products, improve production efficiency, The effect of improving quality

Inactive Publication Date: 2014-05-28
HENAN POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for the production of surfactants by adsorbing catalysts on porous materials, so as to solve the problem that when acidic catalysts are used in the preparation of current surfactants, not only need to neutralize with alkali after the reaction, but also the product after neutralization will easily affect the surface activity. drug quality problem

Method used

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  • Method for preparing surface active agent by using porous material adsorptive catalyst
  • Method for preparing surface active agent by using porous material adsorptive catalyst
  • Method for preparing surface active agent by using porous material adsorptive catalyst

Examples

Experimental program
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Embodiment 1

[0030] First, the fine diatomite powder with an average particle size of 15 μm is stirred with water to form a slurry, and the slurry is made into a spherical green body with a diameter of 20 mm by a ball making machine, and the spherical green body is dried at 120 ° C for 8 hours , and then the dried spherical body was fired at 1150°C for 3 hours to obtain a spherical porous adsorption material (porosity 48%), such as figure 1 shown.

[0031] Put the spherical porous adsorption material into the acidic catalyst dodecylbenzenesulfonic acid solution with a mass concentration of 95% for adsorption for 12 hours, then take it out and control it to dry. 3 The volume of the spherical porous adsorption material that adsorbs the peracid catalyst is 15m 3 in the reaction kettle. Then, add production raw materials anhydrous glucose and fatty alcohol polyoxyethylene ether (the molar ratio of anhydrous glucose: fatty alcohol polyoxyethylene ether is 1:5, and the following examples are a...

Embodiment 2

[0033] First, fine alumina powder with an average particle size of 10 μm and pore-forming agent polyvinyl alcohol (the amount of pore-forming agent is 15% of the mass of alumina) is stirred with water to form a slurry, and the slurry is made in a mold For a cube-shaped green body with a side length of 14mm, the cube-shaped green body was dried at 110°C for 10 hours, and then the dried cube-shaped green body was fired at 1400°C for 3 hours to obtain a cube-shaped porous adsorption material (porosity is 37%), such as figure 2 shown.

[0034] Put the cube-shaped porous adsorption material into the acidic catalyst toluenesulfonic acid solution with a mass concentration of 92% for adsorption for 12 hours, then take it out and control it to dry. 3 The cube-shaped porous adsorption material that adsorbs the peracid catalyst has a volume of 15m 3 in the reaction kettle. Then, add the production raw materials anhydrous glucose and fatty alcohol polyoxyethylene ether (anhydrous gluc...

Embodiment 3

[0036] First, the fine silica powder with an average particle size of 12 μm and the pore-forming agent ammonium carbonate (the pore-forming agent is 10% of the mass of the silica) are mixed with water to form a slurry, and the slurry is made into a volume in a mold The equivalent diameter is a rectangular parallelepiped green body of 16mm, the rectangular parallelepiped green body is dried at 125°C for 6 hours, and then the dried rectangular parallelepiped green body is fired at 1450°C for 4 hours to obtain a rectangular parallelepiped porous adsorption material (porosity is 32%), such as image 3 shown.

[0037] Put the cuboid-shaped porous adsorption material into an acidic catalyst Lewis acid solution with a mass concentration of 90% for adsorption for 24 hours, then take it out and control it to dry. 3 The volume of cuboid porous adsorption material adsorbing peracid catalyst is 15m 3 in the reaction kettle. Then, add raw materials anhydrous glucose and fatty alcohol (a...

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Abstract

The invention belongs to the technical field of surface active agent preparation, and in particular relates to a method for preparing a surface active agent by using a porous material adsorptive catalyst. During preparation of the surface active agent, a porous adsorption material, on which an acid catalyst is adsorbed, is used as the catalyst. The method for preparing the surface active agent by using the porous material adsorptive catalyst, provided by the invention, can prevent an unnecessary neutralization reaction after the completion of the reaction, so as to reduce the preparation cost; the generation of neutralization products is avoided, so that the product quality of the surface active agent is improved; the acid catalyst is prevented from being in contact with a reaction system, so that corrosion of the reaction system by the acid catalyst is reduced, the service life of the reaction system is prolonged, and the manufacturing cost is lowered; in summation, the manufacturing technology is simple in process, simple in follow-up treatment, low in catalyst consumption, high in production efficiency, low in manufacturing cost, and free from pollution, and has an excellent industrial application prospect.

Description

[0001] technical field [0002] The invention belongs to the technical field of preparation of surfactants, and in particular relates to a method for producing surfactants by adsorbing catalysts on porous materials. Background technique [0003] Surfactant, known as "industrial monosodium glutamate", refers to a substance that has fixed hydrophilic and lipophilic groups, can be aligned on the surface of the solution, and can significantly reduce the surface tension. It is a large class of organic compounds. Their properties are very distinctive, their applications are extremely flexible and extensive, and they have great practical value and theoretical significance. Among them, "green" surfactants are highly respected by the world because of their easy biodegradation, safety to humans and the environment. In my country, the application of "green" surfactants is still in the development stage. In the 2011 Industrial Structure Adjustment Catalogue, the "development and produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07B61/00C07H1/00C07H15/08C07H15/04
Inventor 袁海滨戴亚辉曹新鑫曹建亮王李波郑来奇刘志强赵会卿张建军易成刚陈凯周捷
Owner HENAN POLYTECHNIC UNIV
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