模拟菱锰矿硫酸浸出液中铁离子的去除

金属矿山 ›› 2016, Vol. 45 ›› Issue (05): 77-80.

模拟菱锰矿硫酸浸出液中铁离子的去除

朱宝华¹，孙廉政¹，张亚辉²，李洪潮³，张红新³

1.中材集团中材建设有限公司，北京 100176；2.东北大学资源与土木工程学院，辽宁沈阳 110819；3.中国地质科学院郑州矿产综合利用研究所，河南郑州 450006

出版日期:2016-05-13 发布日期:2016-08-18

Iron Removal from Simulated Acid Leaching Solution of Manganese Carbonate Ore

Zhu Baohua¹，Sun Lianzheng¹，Zhang Yahui²，Li Hongchao³，Zhang Hongxin³

1.Sinoma-CBMI Construction Co.，Ltd.，Beijing 100176，China；2.College of Resources and Civil Engineering，Northeastern University，Shenyang 110819，China；3.Zhengzhou Institute of Multipurpose Utilization of Mineral Resources，CAGS，Zhengzhou 450006， China

Online:2016-05-13 Published:2016-08-18

摘要/Abstract

摘要： 为了考察菱锰矿硫酸浸出液采用Na₃PO₄除铁的可行性，以及除铁所生成的FePO4滤渣用NaOH处理以回收PO₄^3-的效果，对Mn²⁺、Fe²⁺浓度分别为18.04、5.20 g/L的模拟菱锰矿硫酸浸出液进行了Na₃PO₄除铁、PO^3-₄回收工艺条件试验。结果表明：在H₂O₂用量为理论量、溶液pH=1.8、Na₃PO₄用量为1.7倍理论量、搅拌时间为15 min情况下，Fe²⁺去除率达99.85%、Mn2+损失率仅为2.23%；FePO4滤渣用0.75倍理论量的NaOH处理，反应3 h时的PO^3-₄回收率达98.24%。因此，菱锰矿硫酸浸出液采用Na₃PO₄除铁不仅可行，而且因PO3-4可回收再利用，除铁工艺成本较低。

关键词: 模拟菱锰矿硫酸浸出液, 双氧水氧化, 磷酸钠除铁, 磷酸根回收

Abstract: In order to investigate the possibility of removing iron by phosphate on acid leaching solution of manganese carbonate ore，and explore the effects of recycling phosphate anions by NaOH in the processes of the generated FePO4 residue，the condition experiments of removing iron and recycle phosphate anions in the simulated solution obtained from acid leaching of manganese carbonate ore of Mn2+，Fe2+ concentrations were 18.04，5.20 g/L were conducted.The results show that the theoretical amount of H2O2，pH=1.8，sodium phosphate dosage of 1.7 times theoretical amount，reaction time to be 15 minutes at room temperature，the removal rates of Fe2+ is 99.85% and the loss rates of Mn2+ is only 2.23%.Under the optimal conditions that sodium hydroxide to be 0.75 times of the theoretical amount and response time of 3 hours，recovery of PO3-4 is 98.24%.Therefore，the processing of removing iron by phosphate on acid leaching of manganese carbonate ore is not only feasible，but also at a low price because of the high recovery of PO3-4.

Key words: Simulated acid leaching solution of manganese carbonate ore, Hydrogen peroxide oxidation, Iron removal by phosphate, Recycling phosphate anions

朱宝华, 孙廉政, 张亚辉, 李洪潮, 张红新. 模拟菱锰矿硫酸浸出液中铁离子的去除[J]. 金属矿山, 2016, 45(05): 77-80.

ZHU Bao-Hua, SUN Lian-Zheng, ZHANG Ya-Hui, LI Hong-Chao, ZHANG Hong-Xin. Iron Removal from Simulated Acid Leaching Solution of Manganese Carbonate Ore[J]. Metal Mine, 2016, 45(05): 77-80.

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