Process for the recovery of sulfuric acid
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United States of America Patent
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Apr 3, 1984
Grant Date -
N/A
app pub date -
Feb 11, 1982
filing date -
Mar 24, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure describes the recovery of sulfuric acid from industrial liquors containing the same. A selective liquid-liquid extraction of said liquors is carried out under conditions producing an organic phase containing the sulfuric acid and an aqueous phase eventually containing impurities. The organic phase is treated with a base, such as gaseous NH.sub.3, in order to separate the sulfuric acid. This process is simple, non-polluting, and requires little energy.
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