Water scavengers for hydrochloric acid streams

Details Water scavengers for hydrochloric acid streams Water scavengers for hydrochloric acid streams

1989-02-16

1989-09-19

Doll, John

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423210, B01D 5302, B01D 5334, C01B 707

Patent

active

048679607

ABSTRACT:
The water content of an HCl gas stream is reduced to less than 1 ppm by contacting the gas stream with a chloride of silicon or a chloride of a metal having a valence of at least four that is immobilized on a solid support.

REFERENCES:
patent: 3440009 (1969-04-01), Flood et al.
patent: 4009214 (1977-02-01), Sze et al.
patent: 4459372 (1984-07-01), Arena
patent: 4564509 (1986-01-01), Shealy et al.
patent: 4579723 (1986-04-01), Weltmer et al.
patent: 4594231 (1986-06-01), Nishino et al.
"Reactions of Titanium Tetrachloride with Silica Gel Surfaces", Ellestad et al., Journal of Molecular Catalysis, 33, (1985), pp. 275-287.
Ghandhi, VLSI Fabrication Principles, John Wiley & Sons, 1983, pp. 248-249, 251-257.
Gas Purification, 3rd Ed., Kohl & Riesenfeld, Gulf Publishing Co., 1979, p. 580.

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