System for recovering and recycling acid mist generated in electrolytic cells for electrowinning or electrorefining non-ferrous
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jun 9, 2016
app pub date -
Jun 18, 2014
filing date -
Jun 19, 2013
priority date (Note) -
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Abstract
Acid mist is extracted from electrolytic cells and conveyed to a first device for trapping electrolyte droplets and condensing the hazardous contaminating sulfuric acid vapors, then gaseous discharges are collected in a manifold, and the first devices are either connected directly to a second multi-chamber device for condensing the acid waste vapors that have not been trapped, which is connected to a gas extractor system which exhausts said gas either directly to the atmosphere or to a chemical treatment system for purification prior to discharge; or alternatively, the manifold discharges directly to an extractor system, which in turn discharges either directly to a centralized waste gas and vapor removal system or to the atmosphere.
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