Composition for removing sulfides from industrial gas

Compositions – Co – s – negative element – or acid – bindant containing

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423220, 423226, 423228, 423229, 423245, 423563, C09K 300

Patent

active

046473971

ABSTRACT:
Process and composition for removing H.sub.2 S and like sulfides from gas streams by contact with a substituted aromatic nitrile having an electron-attracting substituent on the aromatic ring at least as strong as halogen (e.g., isophthalonitrile) and an organic tertiary amine in an inert organic solvent such as N-methyl-2-pyrrolidone.

REFERENCES:
patent: 2093430 (1937-09-01), Franklin et al.
patent: 3767766 (1973-10-01), Tjoa et al.
patent: 4112051 (1978-09-01), Sartori et al.
patent: 4217238 (1980-08-01), Sartori et al.
patent: 4446119 (1984-05-01), DuPart et al.
patent: 4539189 (1985-09-01), Starkston et al.

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