Preparation method of fatty alcohol polyoxyethylene phosphate ester potassium salt

A technology of alcohol phosphate polyoxyethylene ester potassium salt and fatty alcohol, which is applied in the field of synthesis of anionic surfactants in organic chemistry, can solve the problems of inconvenient use, low solid content of potassium salt, increased transportation cost, etc., and achieves convenient storage. and use, good economic benefits, and the effect of reducing transportation costs
CN103374029AInactive Publication Date: 2013-10-30NINGBO LIANKAI CHEM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO LIANKAI CHEM
Publication Date
2013-10-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of fatty alcohol polyoxyethylene phosphate ester potassium salt, which comprises the following steps: (1) performing esterification reaction on fatty alcohol used as a raw material and phosphorus pentoxide; (2) adding deionized water, hydrolyzing to obtain a fatty alcohol phosphate ester mixture mainly containing phosphate monoester and phosphate diester, and directly performing condensation reaction with epoxyethane in the absence of a catalyst; and (3) neutralizing with a 60% potassium hydroxide water solution until the pH value is 6-8, thus preparing to obtain fatty alcohol polyoxyethylene ether phosphate ester potassium salt of which the solid content is 90% or above. In the above mode, in comparison with the fatty alcohol polyoxyethylene ether phosphate ester potassium salt, the fatty alcohol polyoxyethylene phosphate ester potassium salt synthesized by the invention has the advantages of high solid content and liquid flow, reduces the transportation cost, and facilitates storage and use by users, thus having better economic benefits.
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Description

technical field

[0001] The invention relates to a preparation method of fatty alcohol polyoxyethylene phosphate potassium salt, which belongs to the technical field of synthesis of anionic surfactants in organic chemistry. Background technique

[0002] In recent years, foreign phosphate ester surfactants have developed rapidly, and the main production companies include Japan Matsumoto Oil Company, Kao Stone Alkaline Company, German BASF Company, and American Monsanto Company. The average annual growth rate in the United States over the past ten years was 5.8%. However, the research and development of such surfactants in my country started relatively late, and there is a big gap compared with foreign countries in terms of product variety, quantity and quality, but it has developed rapidly in recent years, with an annual rate of 8% to 10%. Increasingly, the application of such surfactants has attracted more and more attention. Fatty alcohol polyoxyethylene ether phosphate pot...

Claims

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