Process for producing chlorine-free hydrochloric acid low in AOX

Details Process for producing chlorine-free hydrochloric acid low in AOX Process for producing chlorine-free hydrochloric acid low in AOX

1991-04-01

1992-06-30

Niebling, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423241, 423DIG20, 423488, C01B 707

Patent

active

051261197

ABSTRACT:
A process for producing a chlorine-free hydrochloric acid low in AOX from crude gases containing hydrogen chloride and organic impurities has been found. The crude gases wer subjected to a thermal treatment at 800.degree. to 1600.degree. in a reducing atmosphere. The hydrochloric acid obtained after absorption of the hydrogen chloride is chlorine-free and contains virtually no organic impurities. The waste gas is also chlorine-free.

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