Environment-friendly novel method for preparing primary alcohol from furan or tetrahydrofuran derivatives

Abstract

The invention provides a novel method for preparing middle / long-chain primary alcohol from furan or tetrahydrofuran derivatives. Specifically, a double-function catalyst is adopted, and such catalyst comprises two activity centers, namely, a hydrogenation activity center and an acid center; water is taken as a solvent in the reaction, the reaction is carried out in a batch reactor, and by utilizing the characteristic that the middle / long-chain primary alcohol is not dissolved in water, the generated primary alcohol is naturally separated from water and the catalyst, and alkane is prevented from being generated because of hydrogen over-addition or hydrogenolysis. Due to the characteristic that the primary alcohol and the water are not dissolved with each other, the primary alcohol can be conveniently separated, the separation cost is greatly lowered, and good industrial prospect is achieved.

Description

Technical field [0001] The invention relates to a new method for preparing primary alcohols from furan or tetrahydrofuran derivatives, and belongs to the field of catalytic chemistry. Background technique [0002] Medium and long chain (C 5 -C 15 ) Primary alcohols are widely used in the flavor and fragrance industry, and can be used as solvents, surfactants, defoamers, industrial additives, etc., and have very important applications in fine chemicals. Traditional medium and long-chain primary alcohols are produced by petrochemical methods. Taking n-octanol as an example, the existing mature process route is prepared by using 1-heptene and synthesis gas as raw materials and re-reducing through oxo synthesis. Due to the increasing depletion of fossil fuels and concerns about environmental issues such as global warming, the use of green and renewable biomass resources to produce fuels and chemicals has become a top priority. A series of cheap furan or tetrahydrofuran derivatives ...

AI Technical Summary

Problems solved by technology

This method created a precedent for the preparation of primary alcohols from biomass derivatives, but the production cost is extremely high, the ionic liquid itself is relatively expensive, and the use of ionic liquid as a solvent makes the separation of the product very complicated. In addition, the introduction of acidic additives makes the ionic liquid The difficulty of recovery and catalyst is greatly increased, and there is no industrialization prospect

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