Inorganic intercalation nano catalyst and preparation process thereof

Abstract

The present invention relates to an inorganic intercalation nano catalyst and its preparation method. It is an inorganic intercalation nano catalyst made up by using zinc binary carboxylate as insert and using montmorillonite, mica, vermiculite, moscow earth and kaolin as base body, and its preparation method includes the following steps: activating inorganic base body powder for 2-10 hr. at 600-1000 deg.C, cooling for stand-by; dissolving zinc binary carboxylate in strong polar solvent, then making it and inorganic base body implement intercalation reaction for 30-120 min, then adopting the weak polar solvent to make lattice modification so as to obtain the invented catalyst with good catalytic efficiency and good selectivity.

Description

technical field

[0001] The present invention relates to an inorganic intercalation nano catalyst and its preparation method, especially an inorganic intercalation nano catalyst used to catalyze the alternating copolymerization reaction of epoxy compound and carbon dioxide to synthesize polyalkylene carbonate with high alternation degree and its preparation method. Background technique

[0002] Polyalkylene carbonates can be obtained by alternating copolymerization of epoxy compounds and carbon dioxide, which can be widely used in low-temperature oxygen barrier films, biodegradable plastics, elastomers, adhesives, coatings and other fields. The synthesis of this type of polymer can effectively utilize the greenhouse gas carbon dioxide, which is a large amount of waste in the industry and causes great harm to the environment. economic and social benefits. The classic catalytic system of this reaction has following several classes: (1), diethyl zinc...