Process for the regeneration of sodium hydroxide from sodium sulfide
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United States of America Patent
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Apr 16, 1996
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N/A
app pub date -
May 2, 1995
filing date -
May 2, 1995
priority date (Note) -
Expired
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Abstract
The present invention is directed toward a process for regenerating sodium hydroxide (NaOH) from aqueous solutions of sodium sulfide (Na.sub.2 S) comprising heating aqueous sodium sulfide in the presence of a metal selected from the group consisting of iron and cobalt, for a time and at a temperature sufficient to form a metal sulfide, sodium hydroxide and molecular hydrogen.
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