China Petrochemical Development Corporation

China Petrochemical Development Corporation, Taipei (taiwan)

Chia-Hui Shen

Hsin-Wei Chang

Yi-Chi Wang

Weng-Keong Tang

Ying-Ling Ma

Zih-Hua Li

Chih-Cheng Chang

Hong-Kai Yang

Chien-Chu Chen

Chia-Tsen Tsai

Wei-Ying Hung

The present invention provides a method for preparing 2,2-bis(4-hydroxycyclohexyl)propane, comprising: hydrogenating a reactive solution containing 2,2-bis(4-hydroxyphenyl)propane under a hydrogen atmosphere in a reactor with catalyst within a temperature range of 80-165° C. and a pressure range of 85-110 kg/cmto prepare the 2,2-bis(4-hydroxycyclohexyl)propane. The method of present invention has an advantage of high yield properties and achieves mass production easily, thereby enhancing the value of the industrial application.

Method for preparing 2,2-bis(4-hydroxycyclohexyl)propane

Provided is a method for preparing 2-cyclohexyl cyclohexanol, including: hydrogenating a cyclohexanone dimer with hydrogen gas at a temperature ranging from 150 to 250&#xb0; C. in a reactor containing a catalyst to prepare 2-cyclohexylcyclohexanol, wherein the molar ratio of the hydrogen gas and oil ranges from 1 to 25. The method has advantages of high yield properties and allows for mass production, thereby enhancing the value of the industrial application.

Method for preparing 2-Cyclohexyl cyclohexanol

A method for producing a cyclohexanone dimer is provided. The method includes the steps of performing condensation of cyclohexanone in the presence of a solid acid catalyst to obtain the cyclohexanone dimer, wherein the solid acid catalyst includes metal oxide of tungsten and a carrier with Lewis acid sites and Br&#xf8;nsted acid sites. The method of the present disclosure has an advantage of mild reaction condition, fast reaction rate and high selectivity, thereby realizing the value of the industrial application.

Method for producing cyclohexanone dimer

A catalyst composition for preparing o-phenylphenol is provided. The catalyst composition includes a carrier; and a first active metal, a second active metal, and a catalytic promoter carried by the carrier. The first active metal is platinum, and the second active metal is selected from the first, second and third rows of transition metals of groups VIB and VIIIB. The present disclosure utilizes the carrier to carry the first active metal, the second active metal and the catalytic promoter so as to increase the selectivity of o-phenylphenol and the service life of a catalyst.

Catalyst composition for preparing O-phenylphenol and method for preparing O-phenylphenol with the catalyst composition

The present invention discloses a process for producing 2-(cyclohex-1'-enyl)cyclohexanone by an auto-condensation of cyclohexanone at a certain temperature in the presence of a certain solid acidic catalyst.

Growing community of inventors

Kaohsiung, Taiwan

Chia-Hui Shen