Source: CPRJ China Plastic & Rubber | Author: Jia Xinbin | Release Date: 2014-08-12

Polycarbonate (PC) is one of the fastest growing market demand for engineering plastics in recent years.
 
 
According to the SASAC announced that China State Construction Engineering Corporation belongs built in cooperation with Zhejiang University to complete the installation of "transesterification process and catalyst development" project results through identification, reached the international advanced level.
 

Diphenyl carbonate (DPC) is the fastest growing market demand in recent years, plastic - polycarbonate (PC) materials. Transesterification of diphenyl carbonate production is internationally recognized advanced production technology, long-term foreign minority chemical giant monopoly.
 

According to reports, "the transesterification process and catalyst development," the research group through research cooperation, the development of a highly efficient ionic liquids used in the preparation of diphenyl carbonate ester exchange catalyst and optimization of the "pressor response - Distillation transesterification and subtraction pressure reaction - "two-step preparation of DPC process, so DPC selectivity reached 95.9%, the total yield of 81.5%, with a conversion rate of raw materials, good separation efficiency and other characteristics distillation disproportionation of diphenyl carbonate and other production processes and the development of non-phosgene polycarbonate synthetic route instructive.
 

It is understood that the three major application areas is PC plastic glazing, automotive and electronics, electrical industry, followed by industrial machinery parts, packaging, computers and other office equipment, medical and health, film, leisure and protective equipment.
 

Polycarbonate is currently the worlds largest consumer market in China. It is expected that future global polycarbonate industry annual growth rate of 5.6%, in 2017 the global polycarbonate production capacity will reach 6.136 million tons.