Copolymerization of carbon dioxide and propylene oxide with Ln(CCl3COO)3-based catalyst: The role of rare-earth compound in the catalytic system

2001 ◽  
Vol 39 (16) ◽  
pp. 2751-2754 ◽  
Author(s):  
Binyuan Liu ◽  
Xiaojiang Zhao ◽  
Xianhong Wang ◽  
Fosong Wang
Keyword(s):  
Carbon Dioxide ◽  
Rare Earth ◽  
Catalytic System ◽  
Propylene Oxide ◽  
Rare Earth Compound

scholarly journals COPOLYMERIZATION OF CARBON DIOXIDE AND PROPYLENE OXIDE UNDER in-situ SUPPORTED RARE EARTH TERNARY CATALYST

2012 ◽  
Vol 012 (4) ◽  
pp. 446-452 ◽  
Author(s):  
Hongwei LU ◽  
Yusheng QIN ◽  
Xianhong WANG ◽  
Xiaojiang ZHAO ◽  
Fosong WANG
Keyword(s):  
Carbon Dioxide ◽  
Rare Earth ◽  
Propylene Oxide ◽  
Ternary Catalyst

Epoxidation of Propylene with O2 Catalyzed by EuCl3

2012 ◽  
Vol 550-553 ◽  
pp. 375-378
Author(s):  
Wen Ming Liu ◽  
Fen Liu ◽  
Zhao Ping Chen ◽  
Feng Yi Li
Keyword(s):  
Rare Earth ◽  
Carboxylic Acids ◽  
Catalytic System ◽  
Propylene Oxide ◽  
Zinc Powder ◽  
Propanoic Acid ◽  
Direct Oxidation ◽  
Epoxidation Of Propylene ◽  
Basic Substance ◽  
Rare Earth Chloride

The formation of propylene oxide from propylene by direct oxidation with O2 has been studied with catalysts of rare earth chloride under different carboxylic acids and solvents, and the mechanism of this reaction has been discussed preliminarily. Significant PO-formation was only observed when catalyzed by EuCl3 and in the presence of zinc powder and carboxylic acids. In using carboxylic acids, propanoic acid is the best for the epoxidation of propylene. The yields of the epoxide became higher than those without solvents, but basic substance was not suitable as solvent. In the catalytic system of EuCl3, zinc powder and carboxylic acids, EuCl3 plays a role in transferring electron, zinc powder was the e- donor and carboxylic acids was the H+ donor. The mechanism was consistent with the result of the experiment.

Copolymerization of carbon dioxide and propylene oxide under inorganic oxide supported rare earth ternary catalyst

2011 ◽  
Vol 49 (17) ◽  
pp. 3797-3804 ◽  
Author(s):  
Hongwei Lu ◽  
Yusheng Qin ◽  
Xianhong Wang ◽  
Xiangguang Yang ◽  
Suobo Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Rare Earth ◽  
Propylene Oxide ◽  
Inorganic Oxide ◽  
Ternary Catalyst
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