Preparation method of fatty ester sulphonate

Abstract

The invention discloses a preparation method of fatty ester sulphonate which takes microbial oil as a raw material to obtain an anionic surfactant, namely fatty ester sulphonate, via a series of reactions such as ester exchange, epoxidation, ring opening and sulfonation. The microbial oil adopted by the method is prepared by fermentation of yeast and algae by taking a straw as a raw material; the oil is low in production cost; large scale industrial production of a product of the oil is easy to realize; and the method achieves conversion of the straw into soap and a detergent. The anionic surfactant, namely fatty ester sulphonate, prepared by the method has a higher active substance content; the preparation method of the anionic surfactant has no problem of 'fighting for grains with people', and solves the problems that animal and vegetable oil are long in production cycle and are limited by seasons and climates, raw materials are narrow in source and additional cultivated land resources are occupied at present, and particularly the problem that the yield of the animal and vegetable oil is far from meeting MES (fatty acid methyl ester sulfonate) industrial production requirements; and the method has good economic benefits and wide application prospects.

Description

Technical field: [0001] The invention relates to the technical field of biochemical industry, in particular to a preparation method of fatty acid ester sulfonate. Background technique: [0002] Surfactants can greatly reduce the surface tension of the solvent and change the interface state of the system when added in a small amount, thereby producing a series of properties such as wetting, emulsification or demulsification, foaming or defoaming. Surfactants, as industrial additives, "industrial monosodium glutamate", and functional additional materials, play an increasingly important role in various fields of our national economy, national defense and military industries, and people's lives. Through continuous and in-depth research on surfactants, it is bound to have important significance for economic development and social progress. [0003] At present, the main effective components in detergents are mostly surfactants such as alkylbenzene sulfonate (LAS), dodecyl sulfate...

AI Technical Summary

Problems solved by technology

[0004] Chinese patents 102618398 A and 103320236 A propose a method for preparing detergents containing sodium fatty acid methyl ester sulfonate, and Chinese patent 101921678 A proposes a method for preparing soap containing fatty acid ethyl ester sulfonate. The above patents only focus on The focus is on the performance of washing products, but the research on the intermediate raw material fatty acid methyl ester sulfonate is neglected

Researchers from all walks of life pay more attention to the extraction of oil-producing microorganisms and microbial oils. The application of microbial oils is limited to biodiesel. There are few reports on the application of chemical products, especially MES.

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