Preparation method of catalyst for synthesis of ethyl acetate and co-production of normal butanol by ethanol one-step method

Abstract

The invention relates to the field of preparation of catalysts, and particularly discloses a preparation method of a catalyst for synthesis of ethyl acetate and co-production of normal butanol by an ethanol one-step method. The preparation method comprises the steps: (1) preparing a solution A and a solution B; (2) preparing carrier particles and drying the carrier particles; (3) dipping the carrier particles with the solution A and the solution B separately and roasting for many times; (4) reducing the sample in mixed gas consisting of hydrogen and inert gas to obtain the required catalyst. The catalyst provided by the invention is applied to synthesis of the ethyl acetate and co-production of the normal butanol through ethanol, the catalytic efficiency of the catalyst is high, the ethanol feeding airspeed is 15 liters of ethanol per liter of catalyst per hour, the conversion rate of the ethanol is more than 30 percent and the highest conversion rate of the ethanol is 70 percent; the ethyl acetate selectivity ranges between 10 percent and 80 percent, the corresponding normal butanol selectivity ranges between 80 percent and 100 percent, and a good technical effect is achieved.

Description

[0001] (1) Technical field [0002] The invention relates to the field of catalyst preparation, in particular to a preparation method for a catalyst used in synthesizing ethyl acetate and co-producing n-butanol with ethanol in one step. [0003] (2) Background technology [0004] Ethyl acetate is a fine chemical product with a wide range of uses. It has excellent solubility and quick-drying properties and is widely used. It is a very important organic chemical raw material and an excellent industrial solvent. It is widely used in cellulose acetate, ethyl acetate In the production process of base fiber, chlorinated rubber, vinyl resin, cellulose acetate resin, synthetic rubber, paint and paint, etc. N-butanol is mainly used to make n-butyl plasticizers of phthalic acid, aliphatic dibasic acid and phosphoric acid. They are widely used in various plastics and rubber products, and are also used in the production of butyraldehyde and butyric acid in organic synthesis. , butylamine ...

AI Technical Summary

Problems solved by technology

At present, the catalysts used in the synthesis of ethyl acetate and co-production of n-butanol generally have the defects of low catalyst efficiency and low conversion rate of ethanol