Petrochina Company Limited

East China University of Science

Deshun Zhang

Qian Chen

Sihan Wang

Baojun Zhang

Shukun Sun

Yali Wang

Libo Wang

Buwei Yu

Fuling Huang

Xiuhui Wang

Guizhi Wang

Xuemei Han

Jianzhong Li

Gang Wang

Jiabo Qu

Yu Wang

Min Liu

Ning Zhang

Jingyuan Zhang

Sheng Xu

Peng Wei

Yongjun Zhang

Hongxia Chen

Hua Li

Yulong Li

Yongcheng Sun

Yunguang Han

Huimin Yuan

Wenchao Zhang

Zhonghua Yang

Dongmei Niu

Dongting Kuang

Yingnan Ning

Lihua Xing

Puke Mi

Guiyue Guo

Lingting Fan

Ling Jiang

Yuxin Gao

Panfeng Lu

Gongchen Yan

Jinhua Qian

A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150&#xb0; C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.

Catalyst or synthesizing 1-hexene from ethylene trimerization and application thereof

A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120&#xb0; C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 M of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100&#xb0; C. and calcining at 400-800&#xb0; C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40&#xb0; C. of 6.0-25 mm/s and a viscosity index of 160-262.

Method for synthesis of 1-decene oligomer

The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and Cr(2-ethylhecanoate); general formula of the ligand containing P and N is shown as: in which R, R, Rand Rare phenyl, benzyl, or naphthyl. Ris isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; the accelerator is selected from the group consisting of 1,1,2,2,-tetrachloroethane, 1,1,2,2-tetrabromoethane, 1,1,2,2-tetrafluoroethane, and compounds having a formula of XRX, in which Xand Xare F, Cl, Br, I or alkoxyl, Ris alkylene or arylene group; the molar ratio of chromium compound, ligand containing P and N, activator and accelerator is 1:0.5&#x2dc;10:50&#x2dc;3000:0.5&#x2dc;10. After mixing the four components mentioned previously under nitrogen atmosphere for 10 minutes, they are incorporated to the reactor, or these four components are incorporated directly into the reactor. Then ethylene is introduced for oligomerization. Such catalyst can be used in producing 1-octene through ethylene oligomerization. It is advantageous in high catalysing activity, high 1-octene selectivity, etc. The catalytic activity is more than 1.0&#xd7;10g product&#xb7;maCr&#xb7;h, the fraction of Clinear &#x3b1;-olefin is more than 70% by mass.

Catalyst composition for ethylene oligomerization and the use thereof

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Daqing, China

Deshun Zhang