Catalysts for catalytic pyrolysis of phenol distillation residue

Details Catalysts for catalytic pyrolysis of phenol distillation residue Catalysts for catalytic pyrolysis of phenol distillation residue

1989-09-22

1990-10-02

Lone, Werren B.

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

Organic compounds

Oxygen containing

568754, 585838, C07C 3700, C07C 3768, C07C 3774

Patent

active

049609580

ABSTRACT:
The catalysts for use in pyrolytic decomposition of the phenol distillation residue in accordance with the present invention are used in pyrolytically decomposing a distillation residue resulting from the separation by distillation of cumene, phenol and acetone from a reaction mixture obtained by oxidizing cumene with molecular oxygen followed by acid cleavage, and the present catalysts are characterized by comprising oxygen containing metallic compounds having a particle diameter of 0.002-100 .mu.m.
Furthermore, the processes for recovering useful substances from a phenol distillation residue containing the same in accordance with the present invention are characterized by allowing said phenol distillation residue to undergo pyrolytic reaction at a temperature of 200.degree.-350.degree. C., preferably 250.degree.-300.degree. C., in the presence of the above-mentioned oxygen containing metallic compound catalysts having a particle diameter of 0.002-100 .mu.m, thereby recovering the useful substance such as cumene, phenol and the like from the phenol distillation residue.

REFERENCES:
patent: 2073398 (1937-03-01), Chesny
patent: 2757209 (1956-07-01), Joris
patent: 2910511 (1959-10-01), Joris
patent: 3454653 (1968-07-01), Larson
patent: 3977999 (1976-08-01), Erickson
patent: 4002653 (1977-01-01), Reuter et al.
patent: 4444899 (1984-04-01), Yamada et al.
patent: 4522709 (1985-06-01), Aldag et al.
patent: 4637995 (1987-01-01), DeAngelis et al.
Chemical Abstracts, vol. 89, No. 19, Nov. 6, 1978, p. 546, Abstract #163263q.

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