Complex catalyst for synthesizing carbonate ester by using homogeneous oxidation carbonylation of alcohol (S), its prepn. tech. and use

Abstract

A complex catalyst for preparing carbonate from alcohol by homogeneous oxidizing-carbonylating reaction has a chemical formula MXnLm, where M is metal, X is chosen from halogen, SO4 (or HSO4) radical, CO3 (or HCO3) radical, etc, L is chosen from RN4 ion, RP4 ion, pyridine, etc, and m=1-12. It is prepared through complex reaction between quaternary ammonium (or phosphorus) salt and metal salt. Its application method is also disclosed.

Description

technical field

[0001] The invention belongs to the field of catalysts, and relates to a complex catalyst for synthesizing carbonates by homogeneous oxidative carbonylation of alcohols, and also relates to a preparation process and a use method of the complex catalyst. Background technique

[0002] Carbonate (Carbonate), the general formula is: R and R' are chain alkyl or aromatic groups, R and R' can be the same or different; they can also be cyclic carbonates: R and R' can be alkyl, alkoxy and the like.

[0003] Carbonates are a class of compounds that are widely used in industry. For example, carbonate is a high-boiling and highly polar organic solvent with excellent performance, widely used in the synthesis of pharmaceuticals and fine chemical intermediates; it can also be used as a fuel additive to improve the octane number of gasoline and reduce the exhaust gas generated by combustion; it can also be used as Organic compounds such as polycarbonate, polyurethane, a...