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Treatment of primary cobalt sulfate / dithionic acid primary cobalt solutions derived from cobalt sources
Treatment of primary cobalt sulfate / dithionic acid primary cobalt solutions derived from cobalt sources
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机译:钴源衍生源自钴硫酸钴/二硫酸二钴溶液的治疗
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摘要
A method of removing and / or recirculating water of a sodium sulfate and / or sodium dithionate containing liquid resulting from the treatment of a substantially lithium-free cobalt source material, the method comprising the steps of: After precipitating as monocobalt or cobaltous hydroxide, this is removed from the liquid, sodium sulfate and sodium dithionate are crystallized, and after removing the crystals, the crystals are heated to give anhydrous sodium sulfate, sulfur dioxide and water. Then, anhydrous sodium sulfate is separated. [Selection diagram] Figure 1
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