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Research Status of Pyrolytic Process of MDC to Produce MDI

Qin A. Chang

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Abstract

Mechanism,classification and reaction conditions of pyrolytic process of MDC(methylene diphenyl carbamate) to produce MDI(diphenylmethane diisocyanate) were related and research situation about it at home and abroad was also presented.The technics using alkanes or ester as solvent and zinc or zinc oxide as catalyst would be gradually developed.To exploit catalyst system with excellent performance,low price and good application in future industry,implement continuous production and adapt suitable technics contributing to actual industry production were development directions in the future.

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What this paper is about

Mechanism,classification and reaction conditions of pyrolytic process of MDC(methylene diphenyl carbamate) to produce MDI(diphenylmethane diisocyanate) were related and research situation about it at home and abroad was also presented.The technics using alkanes or ester as solvent and zinc or zinc oxide as catalyst would be gradually developed.To exploit catalyst system with excellent performance,low price and good application in future industry,implement continuous production and adapt suitable technics contributing to actual industry production were development directions in the future.

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Available abstract

Mechanism,classification and reaction conditions of pyrolytic process of MDC(methylene diphenyl carbamate) to produce MDI(diphenylmethane diisocyanate) were related and research situation about it at home and abroad was also presented.The technics using alkanes or ester as solvent and zinc or zinc oxide as catalyst would be gradually developed.To exploit catalyst system with excellent performance,low price and good application in future industry,implement continuous production and adapt suitable technics contributing to actual industry production were development directions in the future.

Key concepts: Catalysis, Pyrolytic carbon, Chemistry, Carbamate, Zinc, Organic chemistry, Exploit, Production (economics)

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