Method of removing hydrogen sulfide and carbon dioxide from gase

Details Method of removing hydrogen sulfide and carbon dioxide from gase Method of removing hydrogen sulfide and carbon dioxide from gase

1982-11-15

1984-04-17

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423224, 423573G, 562572, B01D 5334

Patent

active

044434189

ABSTRACT:
A process for the recovery of nitrilotriacetic acid values from solutions containing polyvalent metal complexes of nitrilotriacetic and the decomposition products thereof is described, the process being characterized by the addition to such solutions of sufficient strong acid to dissociate the complex under conditions to precipitate the nitrilotriacetic acid.

REFERENCES:
patent: 3068065 (1962-12-01), Hartley et al.
patent: 3226320 (1965-12-01), Meuly et al.
patent: 3933993 (1976-01-01), Salemme
patent: 4009251 (1977-02-01), Meuly
patent: 4091073 (1978-05-01), Winkler

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