High yield aluminoxane synthesis process

Details High yield aluminoxane synthesis process High yield aluminoxane synthesis process

1996-07-15

1997-09-02

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Aluminum containing

C07F 506

Patent

active

056633947

ABSTRACT:
Water, hydrocarbylaluminum such as trimethylaluminum, and organic solvent such as toluene are fed to a reactor in controlled proportions and under temperature control to form a dilute reaction product mixture of specified composition and concentration. This solution is then processed so as to form at least two product mixtures, one of which is essentially aluminoxane-free hydrocarbylaluminum dissolved in organic solvent, and another of which is a concentrated solution of organoaluminum compounds composed in essence of hydrocarbylaluminum (e.g. trimethylaluminum) and hydrocarbylaluminoxane (e.g., methylaluminoxane) in organic solvent in which the amount aluminoxane far exceeds the amount of hydrocarbylaluminum. The process fulfills the need for practical, commercially-feasible process technology capable of producing concentrated aluminoxane solutions with no significant yield losses, and by process technology that can be applied both to batch and to continuous modes of operation.

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