Changzhou University

Zhonghua Sun

Qun Chen

Mingyang He

Weiyou Zhou

Junfeng Qian

Shengchun Chen

Fu'an Sun

Xuan Dai

Zenan Ji

A ternary composite catalyst of diethylzinc and yttrium trifluoroacetate loaded on chitin for copolymerization of carbon dioxide, epoxy cyclohexane and ethylene oxide is provided. The ternary composite catalyst exhibits strong catalytic activity for the ternary copolymerization of carbon dioxide, cyclohexane oxide and ethylene oxide. A high molecular weight and content of ester chain is maintained. Conventional rare earth ternary catalysts leave residues in the polymer, and the polymer requires rinsing with hydrochloric acid. The ternary composite catalyst can be removed through filtration. The average molecular weight of the resulting polycarbonate is more than 100,000, and the ester chain content is more than 90%. The resulting polymer has a lower metal content. The ternary composite catalyst can be used in agricultural film, disposable packaging and other polymer materials.

Catalyst for copolymerization of carbon dioxide and epoxy and method of manufacturing the same

The present disclosure relates to a process for acid-catalyzed decomposition of aryl &#x3b1;-hydroperoxide with a continuous flow tubular reactor. The process is a novel process performed in a tubular reactor, taking the aryl &#x3b1;-hydroperoxide such as cumene hydroperoxide (CHP) as a raw material and taking acids as a catalyst, performing acid-catalyzed decomposition of the aryl &#x3b1;-hydroperoxide solution in a short reaction time ranging from tens of seconds to several minutes, thereby obtaining the phenols; wherein an inert component may be filled in the reactor, so that the effects of heat transmission and mass transfer can be enhanced. The aryl &#x3b1;-hydroperoxide and acid are respectively introduced by a metering pump into a mixing module to be mixed, and then enter the tubular reactor to be reacted so as to produce the products such as phenols.

Process for acid-catalyzed decomposition of aryl &#x3b1;-hydroperoxide with continuous flow tubular reactor

Growing community of inventors

Changzhou, China

Zhonghua Sun