Methods for recovering sodium sulfides from a sulfur scavenging

Details Methods for recovering sodium sulfides from a sulfur scavenging Methods for recovering sodium sulfides from a sulfur scavenging

1994-07-19

1996-04-16

Raymond, Richard L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

4232062, 423208, 423225, 4235663, 423638, C07C21109

Patent

active

055080120

ABSTRACT:
A method is provided for the regeneration of a scavenging compound that has been reacted with hydrogen sulfide. Regeneration is accomplished through the use of calcium oxides and sodium hydroxide. Sodium sulfide is recovered from the regeneration process in a commercially useful form. Calcium oxides are also regenerated in the process, allowing for minimal or no chemical waste.

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patent: 4775519 (1988-10-01), Yit Nieh
patent: 4978512 (1990-12-01), Dillon
patent: 5128049 (1992-07-01), Gatlin

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