CAJ | 학술논문

软锰矿烟气脱硫尾液的主要成分为硫酸锰，其中也含有Cu2＋、Zn2＋、Co2＋、Ni2＋、Pb2＋、Cd2＋等重金属离子，在回收硫酸锰之前必须除杂。从理论上分析了用锰粉置换法去除重金属离子的可行性，探讨了温度、锰粉投加量及搅拌速度对重金属去除率的影响。结果表明：反应最佳温度为75℃，温度太高反而不利于反应进行；搅拌速度对重金属去除率的影响具有局限性，过快或过慢都不利于反应进行，最佳搅拌速度为250 r/min；除Pb2＋外，锰粉投加量越大，置换去除率越高。
연맹광연기탈류미액적주요성분위류산맹，기중야함유Cu2＋、Zn2＋、Co2＋、Ni2＋、Pb2＋、Cd2＋등중금속리자，재회수류산맹지전필수제잡。종이론상분석료용맹분치환법거제중금속리자적가행성，탐토료온도、맹분투가량급교반속도대중금속거제솔적영향。결과표명：반응최가온도위75℃，온도태고반이불리우반응진행；교반속도대중금속거제솔적영향구유국한성，과쾌혹과만도불리우반응진행，최가교반속도위250 r/min；제Pb2＋외，맹분투가량월대，치환거제솔월고。
T he main composition of desulfurization solution of flue gas is manganese sulfate .In the solution ,there are Cu2+ 、Zn2+ 、Co2+ 、Ni2+ 、Pb2+ 、Cd2+ and other heavy metal impurities w hich should be removed before recycling manganese sulfate .T he of removing the heavy metal ions by replacement method using manganese powder was discussed .The influence of temperature ,dosing of manganese powder and stirring speed on the removal rate of heavy metal ions were examined .The result shows that the optimal reaction temperature is 75 ℃ ,high temperature is not favorable for the reaction .The effect of stirring speed on removal rate of heavy metal ions is limited ,both too fast or too slow stirring speed are not favorable for the reaction ,the best stirring speed is 250 r/min .Except for Pb2+ ,the removal rate of other heavy metal ions increases with the increase of manganese power dosing quantity .