Chemistry of inorganic compounds – Sulfur or compound thereof – Binary compound
Patent
1978-05-11
1980-08-19
Vertiz, O. R.
Chemistry of inorganic compounds
Sulfur or compound thereof
Binary compound
423561R, 423561B, 210 45, B01D 500, G01B 1716
Patent
active
042184312
ABSTRACT:
Carbonate waters from subterranean and other sources which are contaminated with dissolved sulfides contribute to environmental pollution. Herein the sulfides are removed without otherwise polluting the environment by conversion to insoluble metal sulfide reaction products separable from the carbonate waters with production of CO.sub.2 -free H.sub.2 S as a valuable byproduct. The dissolved sulfides are reacted with metal salt to form an insoluble sulfide reaction product from which the decontaminated carbonate water is separated, the reaction product is then decomposed by reacting with an aqueous acid comprising the negative radical of the metal salt thus producing H.sub.2 S essentially free of CO.sub.2 as a valuable product. The reformed metal salt is recycled. Conditions are provided for extracting ammonia contained in the carbonate water and for removing arsenic and/or mercury matter therefrom.
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Deuterium Corporation
Straub Gary P.
Vertiz O. R.
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