A kind of vanadium-based catalyst is used for the synthetic method of hydroxyacetone

A technology of hydroxyacetone and catalyst, which is applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low cellulose conversion rate and high energy consumption for separation, and achieve simple preparation process and low energy consumption for separation , not easy to lose the effect
CN109896941BActive Publication Date: 2022-03-08DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2022-03-08

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Abstract

The invention provides a method for the synthesis of hydroxyacetone using a vanadium-based catalyst. The method uses carbohydrates as reaction raw materials, vanadium pentoxide and hydrogenation active metals as catalysts, methanol, ethanol and water as solvents, and undergoes a one-step catalytic conversion process under the conditions of 150-280°C and hydrogen pressure of 0.1-10MPa. , to realize the process of producing hydroxyacetone from carbohydrates. The invention has good product selectivity, raw material carbohydrates can be derived from biomass, and has the advantages of environmental protection, regeneration and the like. The use of supported catalysts is easy to separate, and the vanadium-based catalysts supported by molecular sieves are not easy to be lost during the reaction.
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Description

Technical field

[0001] The present invention relates to a method of vanadium-based catalyst for hydroxyacetone synthesis, specifically a reaction process that is degraded to hydroxyacetone under the action of a carbohydrate under a vanadium-based catalyst. Background technique

[0002] Hydroxyacetone is mainly used in synthesizing 4-methylimidazole, 2-aminopropanol, 4-hydroxymethyrimidazole, vitamin H, acetate, 1,2-propanediol, and other fine chemicals, can also be used as biochemical reagents and foods. Additives, etc. It is mainly produced using 1,2-propanediol oxidation method and a hydromanone / one chlorocetone alcohol solution. Among them, the oxidation method is demanding, high equipment requirements; the raw materials used in alcohol solution are poisonous, and the price is also higher. In addition, these two methods are based on petroleum-based products, and with the shortage of fossil resources, the process of developing non-oil routes to prepare hydroxyacetone is conce...

Claims

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