ZINC PRODUCTION METHOD
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United States of America Patent
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Jan 4, 2024
app pub date -
Dec 2, 2021
filing date -
Dec 4, 2020
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Abstract
A zinc production method further includes chlorine-concentration adjusting processes 101, 101′, and 105 of using an alkali hydroxide aqueous solution as an extraction solvent for selectively extracting zinc components in a zinc-containing aqueous-solution generating process 102, and separating chlorine components contained in electric arc furnace dust or secondary dust to decrease the chlorine concentration of a zinc-containing aqueous solution at a stage prior to an electrolyzing process 103.
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