中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
11期
3716-3721
,共6页
锰铁合金渣%浸出%纯化%硫酸锰%固废利用
錳鐵閤金渣%浸齣%純化%硫痠錳%固廢利用
맹철합금사%침출%순화%류산맹%고폐이용
ferromanganese slag%leaching%purification%manganese sulfate%utilization of solid waste
以锰铁合金渣为原料，经研磨、硫酸浸出后，采用中和?水解、氟化沉淀、硫化沉淀和重结晶法去除浸出液中的铁、铝、钙、镁和重金属以及钠、钾等离子以制备电子级硫酸锰。研究反应 pH、反应温度和不同添加剂的用量对硫酸锰产品中杂质含量的影响，并得到了较优的温度、pH、沉淀剂的用量等工艺条件。结果表明：在较优工艺条件下，所制备的碳酸锰中，Ca2+、Mg2+、Na+、K+杂质离子的含量小于0.005%，Fe3+、Al3+和重金属离子的含量小于0.001%，Mn2+的含量大于32%，硫酸锰产品的质量满足锂离子电池正极材料的要求。
以錳鐵閤金渣為原料，經研磨、硫痠浸齣後，採用中和?水解、氟化沉澱、硫化沉澱和重結晶法去除浸齣液中的鐵、鋁、鈣、鎂和重金屬以及鈉、鉀等離子以製備電子級硫痠錳。研究反應 pH、反應溫度和不同添加劑的用量對硫痠錳產品中雜質含量的影響，併得到瞭較優的溫度、pH、沉澱劑的用量等工藝條件。結果錶明：在較優工藝條件下，所製備的碳痠錳中，Ca2+、Mg2+、Na+、K+雜質離子的含量小于0.005%，Fe3+、Al3+和重金屬離子的含量小于0.001%，Mn2+的含量大于32%，硫痠錳產品的質量滿足鋰離子電池正極材料的要求。
이맹철합금사위원료，경연마、류산침출후，채용중화?수해、불화침정、류화침정화중결정법거제침출액중적철、려、개、미화중금속이급납、갑등리자이제비전자급류산맹。연구반응 pH、반응온도화불동첨가제적용량대류산맹산품중잡질함량적영향，병득도료교우적온도、pH、침정제적용량등공예조건。결과표명：재교우공예조건하，소제비적탄산맹중，Ca2+、Mg2+、Na+、K+잡질리자적함량소우0.005%，Fe3+、Al3+화중금속리자적함량소우0.001%，Mn2+적함량대우32%，류산맹산품적질량만족리리자전지정겁재료적요구。
Preparation of electronic grade manganese sulfate from ferromanganese slag, including grinding, leaching and purification, was studied. The impurities, such as Fe3+, Al3+, Ca2+, Mg2+, heavy metal ions and Na+, K+, were removed from leaching solution by neutralized-hydrolysis, fluorination precipitation, sulfuration precipitation and re-crystallization. Effects of pH of reaction, temperature and dosage of the different additives on removal rates of the metallic ions in leaching solution were investigated, and the suitable temperature, pH and the added amount of precipitating agent were obtained. The prepared manganese sulfate product, of which the mass fractions of Ca2+, Mg2+, Na+, K+ are all smaller than 0.005%, the mass fractions of Fe3+, Al3+ and heavy metal ions are smaller than 0.001%, and the mass fraction of Mn2+ is greater than 32%, can meet the demand of anode materials of lithium-ion batteries.
