Industrial Technology Research Institute

Other

Tsai-Tien Su

Kuo-Chen Shih

Jing-Cherng Tsai

Yi-Chun Chen

Mao-Lin Hsueh

Ching Ting

Yu-Shan Chao

Hung-Yu Chen

Bor-Ping Wang

Hao-Hsun Yang

Sung-Song Hua

Hsi-Hui Tai

The disclosed is about a hydroformylation of a cyclic olefin with rhodium catalyst, and specifically about the recovering of the rhodium catalyst. Aldehyde and the cyclic olefin are added into a rhodium catalyst solution to process a hydroformylation, thereby forming the product cycloalkyl aldehyde. Afterwards, the result is divided into two layers. The upper layer is substantially rhodium catalyst solution, and the lower layer is substantially cycloalkyl aldehyde and the aldehyde. After separation, the upper layer is reserved to process next hydroformylation reaction with newly added cyclic olefin.

Hydroformylation process

A metal catalyst for hydrogenating unsaturated carbon-carbon bonds of copolymer is provided. The metal catalyst is a bimetallic complex comprising iridium and ruthenium. The metal catalyst has a formula comprising MMX(L), wherein the Mis iridium, Mis ruthenium; X is hydrogen, chlorine, bromine, iodine or pseudo halide; Lis phosphine, bisphosphine, arsane or organic with nitrogen, sulfur and oxygen.

Metal catalyst and hydrogenation method employing the same

A metallocene complex in which the cyclopentadienyl group is substituted with an alkanediyl silyl group. The yield of the metallocene complex is high, and it can be used as the catalyst for preparing high molecular weight olefin polymers.

Metallocene catalyst for preparing olefin polymer

The present invention discloses an improved catalyst composition for preparing 5-formylvalerate esters by hydroformylation of pentenoic esters monoxide with good activity, high selectivity in the presence of hydrogen and carbon.

Catalyst composition for preparing 5-formyl valaric esters from

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Hsinchu, Taiwan

Tsai-Tien Su