CAJ | 학술논문

针对水钴矿制备钴盐生产过程中含锰、铜、钴、锌等重金属离子废水，通过4步除杂、P204萃取富集锰，制备电池材料用硫酸锰。第1步用硫化钠去除铜、钴、锌离子，硫化钠最佳加入量为60 g/L ；第2步用碳酸氢铵调pH去除铝，最佳pH为4．5；第3步用硫酸钠去除Ca2＋，硫酸钠最佳用量为110 g/L ；第4步用氟化钠进一步去除Al3＋和Ca2＋，氟化钠最佳用量为0．45 g/L。4步除杂后的废水用P204萃取、硫酸反萃取，得到硫酸锰溶液，硫酸锰溶液经蒸发结晶得到电池材料用硫酸锰。
침대수고광제비고염생산과정중함맹、동、고、자등중금속리자폐수，통과4보제잡、P204췌취부집맹，제비전지재료용류산맹。제1보용류화납거제동、고、자리자，류화납최가가입량위60 g/L ；제2보용탄산경안조pH거제려，최가pH위4．5；제3보용류산납거제Ca2＋，류산납최가용량위110 g/L ；제4보용불화납진일보거제Al3＋화Ca2＋，불화납최가용량위0．45 g/L。4보제잡후적폐수용P204췌취、류산반췌취，득도류산맹용액，류산맹용액경증발결정득도전지재료용류산맹。
In the process of preparing of cobalt salt using heterogenite ,the wastewater which contains heavy metal ions such as M n2+ ,Cu2+ ,Co2+ ,Zn2+ was produced .By four-stages purification and solvent extracting ,manganese sulfate which could be applied in battery materials was obtained .In the first stage ,Cu2+ ,Co2+ ,Zn2+ are precipitated by sodium sulphide ,the optimum amounts of sodium sulphide is 60 g/L .In the second stage ,ammonium bicarbonate is used to adjust pH for hydrolytic precipitation aluminum .In the third stage ,sodium sulphate is used to remove Ca2+ ,the ideal amounts of sodium sulphate is 110 g/L .In the fourth stage ,Al3+ ,Ca2+ can be further purified by adding sodium fluoride , the best amount of sodium fluoride is 0 .45 g/L .After the above four steps ,manganese sulfate was obtained by P204-extraction and H2 SO4 anti-extraction ,evaporation and crystallization ,manganese sulfate used as battery materials can be obtained .