Supported organic chromium vanadium compound catalyst and preparation and application thereof

• Main Authors: HE SHUYAN, MA LI, REN HEGANG, FU YI, JIANG JINXIAN, CHENG RUIHUA, WANG SHIHUA, ZOU ENGUANG, REN HE, ZHAO ZENGHUI, LIANG LIWEI, WANG SIHAN, ZHANG RUI, LI MINGQUAN, WANG HUA, ZHANG YUJIAN, TIAN BINGQUAN, WANG GANG, GAO YUXIN, ZHAO CHENGCAI, LIU BAIPING, ZHAO NING, YU ZHANYUAN, WANG LIJUAN
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to a supported organic chromium vanadium compound catalyst, and preparation and application thereof. The preparation is as below: immersing an inorganic carrier into an inorganic vanadium source solution, then drying, and then roasting at 300 to 900 DEG C; and immersing the product into an organic agent solution, then drying and preserving. The loading amount of Cr on the inorganic carrier is 0.01-10 wt.% of the total weight of the catalyst; the loading amount of V on the inorganic carrier is 10-500 wt.% of the loading amount of Cr; and the molar ratio of organic agent to vanadium is 0.1-30. The catalyst can be used in the production of ethylene homopolymer and copolymer of ethylene with alpha-olefin, and has the advantages of high activity, broad molecular weight distribution of the product (part of the product is in double-peak distribution), and the superior copolymerization performance of alpha-olefin.