Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1999-04-28
2000-05-09
Wu, David W.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502102, 502117, 502232, 502120, 502152, 502159, 556173, 556179, 526943, 526127, 526128, 526160, B01J 3100, C07F 702
Patent
active
060604182
ABSTRACT:
Catalysts deposited on a support are described. The catalyst itself is formed by combining (i) a metallocene of a transition, lanthanide or actinide metal and (ii) a siloxy-aluminoxane composition which comprises an aluminoxane which contains hydrocarbyl-siloxane moieties which are free of Si-OH groups, wherein the molar ratio of aluminum to hydrocarbylsiloxane is from about 1:1 to 1000:1. The siloxy-aluminoxane composition used is free of Si-OH groups, and the aluminoxane of the siloxy-aluminoxane composition was formed by partial hydrolysis of trialkylaluminum. Supports for the catalysts are particulate inorganic oxides, preferably silica, alumina, silica-alumina, or a mixture thereof, or resinous polyolefin support materials.
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Albemarle Corporation
Lu-Rutt Caixia
Pippenger Philip M.
Wu David W.
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