| 高砷铜精矿浸出液制备砷酸铜及热力学研究 |
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| 引用本文： | 谢海云,童雄,陆建生,刘中华,庄故章.高砷铜精矿浸出液制备砷酸铜及热力学研究[J].武汉理工大学学报,2010(6). |
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| 作者姓名： | 谢海云 童雄 陆建生 刘中华 庄故章 |
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| 作者单位： | 昆明理工大学国土资源工程学院;昆明理工大学材料与冶金工程学院; |
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| 基金项目： | 云南省应用基础研究基金(2000E0030M); 昆明理工大学人培基金(KKZ3200921005) |
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| 摘 要： | 高砷铜精矿浸出液中因含砷较高存在砷害问题,砷回收利用具有重要的意义。研究针对某高砷硫化铜精矿除杂后的浸出液,探讨了以砷酸铜形式综合利用砷的热力学及工艺参数。绘制了Cu-As-H2O系电位-pH图,进行了砷酸铜制备工艺过程的热力学分析,对净化后的某高砷硫化铜精矿浸出液,以氨水为中和剂,当pH=5.0~8.0,温度80~90℃时,制得了CuAs2O4、C4H6As6Cu4O16、Cu5As2O10.5H2O、Cu5As4O15.9H2O、Cu2AsO4OH.3H2O及Cu2AsO4OH 6种不同结构的砷酸铜,沉砷后溶液中砷含量为9.11~35.82 mg/L。
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| 关 键 词： | 高砷铜精矿 浸出液 电位-pH图 砷酸铜 热力学 砷综合利用 |
Research on the Thermodynamics and Preparation of Copper Arsenate from High Arsenic-bearing Copper Concentrate Leaching Liquor |
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| XIE Hai-yun,TONG Xiong,LU Jian-sheng,LIU Zhong-hua,ZHUANG Gu-zhang.Research on the Thermodynamics and Preparation of Copper Arsenate from High Arsenic-bearing Copper Concentrate Leaching Liquor[J].Journal of Wuhan University of Technology,2010(6). |
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| Authors: | XIE Hai-yun TONG Xiong LU Jian-sheng LIU Zhong-hua ZHUANG Gu-zhang |
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| Affiliation: | XIE Hai-yun1,TONG Xiong1,LU Jian-sheng2,LIU Zhong-hua2,ZHUANG Gu-zhang1(1.Faculty of L, Resource Engineering,Kunming University of Science , Technology,Kunming 650093,China,2.Faculty of Metarials , Metallurgical Engineering,China) |
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| Abstract: | The arsenic in the high-arsenic copper sulfide concentrate leaching liquor is harmful to the quality of copper and pollutes the environment so that it is crucially important for the comprehensive utilization of arsenic.The Eh-pH diagram of Cu-As-H2O system and the thermodynamic of copper arsenate preparation from leaching liquor after removing Fe3+ are investigated in the present study.The results of XRD analysis indicate that the forming process of copper arsenate is complicated and different molecular for... |
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| Keywords: | high arsenic-bearing copper concentrate leaching liquor Eh-pH diagrams copper arsenate thermodynamic comprehensive utilization of arsenic |
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