Process for treating overspray gas from glass coating operation

Details Process for treating overspray gas from glass coating operation Process for treating overspray gas from glass coating operation

1983-05-10

1985-04-16

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423481, 423612, 423618, 65 301, B01D 5334

Patent

active

045115451

ABSTRACT:
The process and apparatus for removing metal halide gases from overspray generated during hot-end glass coating operations is disclosed. The excess metal halide gas is drawn into a recovery chamber in which it is decomposed to a metal oxide and a hydrogen halide gas by reaction with a warm water spray. The hydrogen halide gas is then subjected toa cold water spray to reduce the hydrogen halide gas to an acid which is diluted and discarded as an effluent. The treated overspray gas which is finally discarded to the environment contains substantially no metal halides and only a minimal concentration of hydrogen halide gas.

REFERENCES:
patent: 2346604 (1944-04-01), Pechukas
patent: 2732310 (1956-01-01), Miller
patent: 3256062 (1966-06-01), Wylegala
patent: 3561940 (1971-02-01), Scholes
patent: 3789109 (1974-01-01), Lyon et al.
patent: 3919391 (1975-11-01), Scholes et al.
patent: 3956532 (1976-05-01), Russell
patent: 4325922 (1982-04-01), Bryant

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