Method of cleaning waste gas containing a fluorine component

Details Method of cleaning waste gas containing a fluorine component Method of cleaning waste gas containing a fluorine component

1975-04-17

1977-08-16

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423490, 55 71, 55 97, B01D 5334

Patent

active

040426670

ABSTRACT:
In a method of cleaning a fluorine-containing waste gas evolved frm a furnace, by contacting said gas with a fluorine-reactive powder and filtering the fluorine-reactive powder by a filter, an improvement comprising cooling the waste gas to 150.degree.-400.degree. C; feeding a fluorine-reactive powder into the cooled waste gas; passing the cooled waste gas through a filter on which the fluorine-reactive powder is deposited so as to react with the fluorine component of the waste gas; and removing the deposited powder layer from the filter.

REFERENCES:
patent: 2919174 (1959-12-01), Pling
patent: 3343908 (1967-09-01), Wickert
patent: 3933978 (1976-01-01), Margraf

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