Disposal of PCB

Details Disposal of PCB Disposal of PCB

1979-04-02

1981-01-20

Thomas, Earl C.

Chemistry of inorganic compounds

Miscellaneous process

4232105, 423240, 423245, 423481, 423DIG12, B01J 100, C01B 701

Patent

active

042462550

ABSTRACT:
A process for the decomposition of polychlorinated biphenyls (PCB's) with negligible environmental pollution. The process comprises feeding the PCB and a source of oxygen to a molten salt comprising an alkali metal carbonate and preferably also an alkali metal sulfate to decompose the PCB by pyrolysis and oxidation. Some of the resulting decomposition products react with and are retained in the molten salt; the remaining gaseous products pass through the melt and are safely exhaustable to the atmosphere or, alternatively, the PCB is introduced into a first zone for partial pyrolysis and oxidation and then into a second reaction zone for further oxidation of any remaining combustible gases.

REFERENCES:
patent: 3845190 (1974-10-01), Yosim
patent: 4140066 (1979-02-01), Rathjew

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