Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1977-12-12
1979-06-05
Hearn, Brian
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423240, 423242, 423245, 423246, C01B 700
Patent
active
041573749
ABSTRACT:
Waste gases containing 15% or less vaporized chlorides are processed to recover chlorine values as HCl by filtration of particulate material followed by the adsorption of metal chlorides on carbon beds and subsequent hydrolyzing of the metal chlorides at a temperature of 100.degree.-150.degree. C. to form metal oxides and HCl. The remaining gases such as COCl.sub.2 are further hydrolyzed to recover aqueous HCl and then the gases are scrubbed and finally incinerated to provide a discharge to the atmosphere containing CO.sub.2, N.sub.2, H.sub.2 O, O.sub.2 and about 5ppm HCl.
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Carpenter Lee G.
Cedro, III Vito
Kinosz Donald L.
Aluminum Company of America
Hearn Brian
Hill David J.
Taylor John P.
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