| 从含砷废液和废渣中制备三氧化砷 |
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| 引用本文： | 杨天足,赵天从,卢宜源.从含砷废液和废渣中制备三氧化砷[J].中南大学学报(自然科学版),1993(4). |
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| 作者姓名： | 杨天足 赵天从 卢宜源 |
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| 作者单位： | 中南工业大学有色金属冶金系，中南工业大学有色金属冶金系，中南工业大学有色金属冶金系 长沙，410083，长沙，410083，长沙，410083 |
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| 基金项目： | Project supported by The National Natural Science Foundation of China |
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| 摘 要： | 研究了将含砷废液和硫化砷废渣进行综合处理,制备出含As_2O_3达99.0％以上的三氧化砷的方法。用这种方法消除了含砷废水、废渣对环境造成的污染。考察了温度、酸度、液固比、浸出时间等因素对硫化砷中砷浸出率的影响,其中温度和硫酸浓度的影响较大。
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| 关 键 词： | 砷 污染 三氧化砷 三硫化砷 废渣 废水 |
THE PREPARATION OF ARSENIC TRIOXIDE FROM THE LIQUID AND RESIDUE CONTAINING ARSENIC |
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| Yang Tianzu,Zhao Tiancong,Lu Yiyuan.THE PREPARATION OF ARSENIC TRIOXIDE FROM THE LIQUID AND RESIDUE CONTAINING ARSENIC[J].Journal of Central South University:Science and Technology,1993(4). |
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| Authors: | Yang Tianzu Zhao Tiancong Lu Yiyuan |
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| Institution: | Yang Tianzu,Zhao Tiancong,Lu Yiyuan Department of Nonferrous Metallurgy,Central South University of Technology,Changsha,410083,China |
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| Abstract: | It was reported that by comprehensively utilizing arsenic-bearing liquid and As_2S_3 residue,commercialarsenic trioxide with 99% purity could be prepared. By this method the pollution caused by arsenic-bearingliquid and As_2S_3 residue can be eliminated. Effects of temperature, acidity, L/S ratio and retention time,etc. on leaching of arsenic in As_2S_3 residue were investigated, among which temperature and H_2SO_4 con-centration were of significance. |
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| Keywords: | arsenic pollution arsenic trioxide arsenic trisulfide residue waste water |
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