Aluminum phenoxide catalyst removal

Details Aluminum phenoxide catalyst removal Aluminum phenoxide catalyst removal

1989-03-08

1990-05-29

Lone, Werren B.

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

Organic compounds

Oxygen containing

568749, C07C 3770, C07C 3774

Patent

active

049297708

ABSTRACT:
Aluminum phenoxide catalyst is removed from a phenolic alkylation mixture by adding 15-30 moles of water per mole of aluminum phenoxide to the alkylation mixture and holding at about 30.degree.-100.degree. C. for 10-60 minutes to form solids and heating the wet mixture to 120.degree.-160.degree. C. and holding at that temperature until filterable particulates form. The particulates can be readily filtered to obtain a substantially aluminum-free filtrate.

REFERENCES:
patent: 2831898 (1958-04-01), Eckes et al.
patent: 3652685 (1972-03-01), Geddes
patent: 3766276 (1973-10-01), Goddard
patent: 3939215 (1976-02-01), Goddard
patent: 3970708 (1976-07-01), Katsumoto
patent: 4232176 (1980-11-01), Adigamov et al.

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