Dairen Chemical Corporation

Chang Chun Petrochemical Co., Ltd.

C C Chu

F S Lin

S C Chen

Shien Chang Chen

C C Huang

Liang Sheu

Shing Y Wang

F J Huang

J Y Chou

The present invention relates to a modified Raney nickel catalyst which can serves as hydrogenation catalyst for hydroxy aldehydes, such as 4-hydroxy-butanal, and 2-methyl-3-hydroxypropanal and hydroxy cyclic ethers such as 2-hydroxy-tetrahydrofuran. Further, a process for preparing diols by using the modified Raney nickel catalyst is provided.

Modified Raney nickel catalyst and a process for preparing diols by

A process for the preparation of tertiary olefins by decomposition of a tertiary alkyl ether in the vapor phase in the presence of a catalyst, wherein the catalyst used is a composition of: (i) 5 to 95 percent by weight of a crystalline aluminosilicate zeolite having a silica-to-alumina mole ratio of at least about 5 and a Constraint Index of about 1 to about 12, and (ii) 95 to 5 percent by weight of a binder selected from amorphous silica, alumina, silica-alumina and mixtures thereof.

Process for the preparation of tertiary olefins

A process of preparing acetic acid by reacting a mixture of a methyl ester, an alcohol, and water preferably as a solution in aqueous acetic acid, with carbon monoxide, with or without hydrogen, at a selected partial pressure, in the presence of a catalyst, preferably composed of a nickel or nickel/molybdenum compound with phosphorus compounds as ligands, and a promoter composed of iodine compounds, at a predetermined temperature is disclosed.

Production of acetic acid

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Kaohsiung, Taiwan

C C Chu