Method for purifying pentachlorophenol

Details Method for purifying pentachlorophenol Method for purifying pentachlorophenol

1974-09-23

1979-03-06

Scovronek, Joseph

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

203 38, 203 64, 568755, B01D 334, C07C 3722, C07C 3924

Patent

active

041429435

ABSTRACT:
The decomposition of pentachlorophenol during distillation to remove impurities is markedly reduced by incorporating into the distilling molten pentachlorophenol a hydroxyl or polyhydroxyl containing organic compound having a boiling point above about 100.degree. C. in the presence or absence of water.

REFERENCES:
patent: 3646225 (1972-02-01), Morrison
patent: 3655523 (1972-04-01), Seeburger et al.
patent: 3692561 (1972-09-01), Hager
patent: 3816268 (1974-06-01), Watson et al.
patent: 3830708 (1974-08-01), Karhan et al.
patent: 3909365 (1975-09-01), Christena
patent: 4016047 (1977-04-01), Christena

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