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PROCESS FOR THE PRECIPITATION OF IRON AS JAROSITE FROM IRON-SULPHATE SOLUTIONS
PROCESS FOR THE PRECIPITATION OF IRON AS JAROSITE FROM IRON-SULPHATE SOLUTIONS
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机译:从硫酸铁溶液中析出亚铁酸盐的过程
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摘要
A process for precipitation of iron as a jarosite compound from sulfate solution in which said solution fed sequentially through a plurality of reaction zones for oxidation and hydrolysis of ferrous sulfate in the presence of alkali-metal or ammonium ions for jarosite precipitation and simultaneous generation of sulfuric acid is subjected to a "reverse temperature profile", i.e., higher temperature in the last reaction zone than in the first reaction zone, by injection of steam to the last reaction zone.
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