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A METHOD FOR PRECIPITATING IRON FROM A ZINC SULPHATE SOLUTION AS HEMATITE.
A METHOD FOR PRECIPITATING IRON FROM A ZINC SULPHATE SOLUTION AS HEMATITE.
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机译:一种从硫酸锌锌溶液中除铁的赤铁矿的方法。
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摘要
This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution is adjusted to a value of at least 2.7, oxygen-containing gas is fed into the solution and part of the hematite thus formed is recirculated to the precipitation stage.
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