Process for recovering organic substances from spent air vapors

Details Process for recovering organic substances from spent air vapors Process for recovering organic substances from spent air vapors

1982-09-13

1984-04-10

Lacey, David L.

Gas separation

Means within gas stream for conducting concentrate to collector

55 48, 208333, B01D 4706

Patent

active

044418965

ABSTRACT:
The invention relates to a process for recovering preferably water-insoluble organic substances such as nitrobenzene, dichlorobenzene and/or trichlorobenzene by absorption from spent air vapors which contain these substances. The process comprises passing the spent air vapors through a high-boiling organic liquid, preferably polyethylene glycol, subsequently adding water to the saturated absorbent and separating the recovered organic substance from the absorbent/water mixture after phase separation.

REFERENCES:
patent: 1220651 (1917-03-01), Linderborg et al.
patent: 2414252 (1947-01-01), Ashburn
patent: 2727848 (1955-12-01), Georgian
patent: 3739548 (1973-06-01), Hegwer
patent: 3867112 (1975-02-01), Honerkamp et al.
patent: 4225415 (1980-09-01), Mirza et al.
patent: 4263019 (1981-04-01), Minkkinen
patent: 4299668 (1981-11-01), Berg
patent: 4318716 (1982-03-01), Doerges et al.

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