Nano ceramic catalyst for acylation

Abstract

The invention relates to a nano ceramic catalyst for acylation. The catalyst is prepared from (a) one of zinc chloride and boron trifluoride or a mixture of the zinc chloride and the boron trifluoride, (b) two of aluminum chloride, ferric trichloride, titanium tetrachloride, nickel chloride and cobalt dichloride or a mixture of more than two of the aluminum chloride, the ferric trichloride, the titanium tetrachloride, the nickel chloride and the cobalt dichloride, and (c) a nano ceramic. The nano ceramic catalyst has porosity and the advantages of being good in selectivity, high in activity, long in service life and recyclable, not polluting environment and the like, and is very suitable for industrial production.

Description

technical field [0001] The invention relates to a nano ceramic catalyst for acylation. Background technique [0002] Acylation reaction is an important class of organic synthesis methods, and it is also an industrial production process involved in many cosmetics, fragrances, drugs, agricultural chemicals and other chemical products or their intermediate products. At present, most of the catalysts used in this reaction in industry are homogeneous catalysts, including acid (AlCl 3 , BF 3 , ZnCl 2 、TiCl 4 , FeCl 3 etc.) and acids (HF, H 2 SO 4 , HCl, H 3 PO 4 , p-toluenesulfonic acid, etc.). Although the homogeneous catalyst technology is relatively mature, most of the homogeneous catalysts used in the industry have corrosion equipment; the catalyst itself is corrosive, and the operation is very dangerous; it is necessary to neutralize the reactants and deal with a large amount of soluble salts, and these operations will reduce the conversion of the reaction rate, yie...

AI Technical Summary

Problems solved by technology

Although the homogeneous catalyst technology is relatively mature, most of the homogeneous catalysts used in the industry have corrosion equipment; the catalyst itself is corrosive, and the operation is very dangerous; it is necessary to neutralize the reactants and deal with a large amount of soluble salts, and these operations will reduce the conversion of the reaction rate, yield and selectivity, poor economic benefit