| 硫酸锰直接制备四氧化三锰的研究 |
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| 引用本文： | 骆艳华,陈思学,王凡,王克玉. 硫酸锰直接制备四氧化三锰的研究[J]. 矿业快报, 2008, 24(2): 17-19 |
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| 作者姓名： | 骆艳华 陈思学 王凡 王克玉 |
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| 作者单位： | 中钢集团安徽天源科技股份有限公司 |
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| 摘 要： | 采用两种试验方法,将硫酸锰溶液中的Mn2 氧化为四氧化三锰:一步法即边向溶液中滴加氨水边通空气氧化;两步法即向硫酸锰溶液中加入一定量的氨水先制得氢氧化锰固体,然后将固体氢氧化锰调浆通空气氧化制得Mn3O4.经比较,两步法较一步法氧化时间短,氧化更彻底,产品收率>99.9%,Mn含量达到71.3%～72.0%,Ca达到50×10-6,Mg达到40×10-6,SO2-4达到700×10-6以下;比表面积>8m2/g,粒度达到1μm以下.
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| 关 键 词： | 硫酸锰 直接氧化 四氧化三锰 |
| 文章编号： | 1009-5683（2008）02-0017-03 |
| 收稿时间： | 2007-09-09 |
| 修稿时间： | 2007-09-09 |
Research on Direct Preparation of Mn_3O_4 by MnSO_4 |
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| Luo Yanhua,Chen Sixue,Wang Fan,Wang Keyu. Research on Direct Preparation of Mn_3O_4 by MnSO_4[J]. Express Information of Mining Industry, 2008, 24(2): 17-19 |
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| Authors: | Luo Yanhua Chen Sixue Wang Fan Wang Keyu |
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| Affiliation: | Luo Yanhua Chen Sixue Wang Fan Wang Keyu(Research , Development Center,Sinosteel Anhui Tianyuan Technology Co.,Ltd.) |
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| Abstract: | These are two ways of preparing Mn3O4 by MnSO4 directly.One is pumping air while dropping ammonia water;Another is dropping a certain amount of ammonia water into manganese sulfate solution,obtaining solid of Mn(OH)2.Then,mangano-manganic oxide is acquired by conditioning of the solid of Mn(OH)2 and pumping air into the solid of Mn(OH)2.Through comparison,the later way has shorter oxidation time and more thorough oxidation effect than that of the former.The recovery of Mn3O4 by the later way is more than 99... |
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| Keywords: | MnSO4 Direct Oxidation Mn3O4 |
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