Method for recovering phenol and xanthene values from waste poly

Details Method for recovering phenol and xanthene values from waste poly Method for recovering phenol and xanthene values from waste poly

1995-04-17

1996-10-22

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558274, 568749, C07D31182, C07C 6996, C07C 3768

Patent

active

055678297

ABSTRACT:
Organic values are salvaged from scrap polycarbonate by heating in the presence of an acid catalyst and a C.sub.1-4 alkyl phenol such as m- or p-cresol. Among the compounds which can be salvaged are polyalkylated xanthenes, phenol and diaryl carbonate.

REFERENCES:
patent: 5336814 (1994-08-01), Shafer
patent: 5430199 (1995-07-01), Caruso et al.

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