Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Halogenous component
Patent
1977-10-04
1979-06-05
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Halogenous component
423483, 423488, 55 71, B01D 5334
Patent
active
041573765
ABSTRACT:
A process for the removal of hydrogen fluoride and/or hydrogen chloride from gases comprising passing the gas to be purified through anion-exchange sorbent composed of a textured chemisorption fiber based on carbo-chain polymers with vinylpyridine groups or aliphatic amino groups. On exhaustion the sorbent is regenerated with water.
The process of the present invention makes it possible to purify gases substantially completely irrespective of the initial concentrations of impurities in the gas being treated and ensures practically unlimited number of sorption-regeneration cycles with the same sorbent.
REFERENCES:
patent: 2829028 (1958-04-01), Aho et al.
patent: 3653811 (1972-04-01), Zagorskaya et al.
patent: 4056605 (1977-11-01), Vulikh et al.
Alovyainikov Alexandr A.
Barash Arkady N.
Fokina Natalia A.
Kalyanova Nadezhda F.
Mavrin Alexei M.
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