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for Slag of Arsenic and Soda QIU Yong-hai1, LU Bing-qiang2, CHEN Bai-zhen3, ZHONG Yu2, FU Wei1, YANG Yi-qian3 (1.School of Info-physics and Geomatics Engineering, Central South University, Changsha... of slag of arsenic and soda in smelting antimony at 80 ℃ for about 2 h, the mixture was filtered so as to remove the antimony. Then the liquid after removing antimony was blown by CO2 in order......
]. 图2 在渣场堆放的含砷石膏渣 Fig. 2 Arsenic bearing gypsum sludge in slag field 为确定含砷石膏渣危害性,取渣场中堆存的经自然风干的石膏渣,参照
;Composition of arsenic alkaline residue (mass fraction, %) 图1 砷碱渣的XRD谱 Fig. 1 XRD pattern of arsenic alkali residue 1.2 实验试剂 本实验所用化学试剂等级均为分析纯(AR),具体如表2所示.将砷碱渣分步处理得到的溶液作为砷源,以七水硫酸亚铁为铁源...]. 表2 实验试剂 Table 2 Laboratory reagents 表3 富砷溶液中元素的组成 Table 3 Composition of elements in arsenic-rich solution ......
range of 5.40-10.88. The leaching results indicated that the release of arsenic from scorodite was noticeably postponed by the coating, and the average arsenic concentrations in the leaching solutions were as low as 0.12 mg/L in the TCLP tests and lower than 0.5 mg/L in the long-term leaching tests. Key words: scorodite; arsenic immobilization; nucleation; in-situ coating; stability 1 Introduction......
Environmental availability and profile characteristics of arsenic, cadmium, lead and zinc in metal-contaminated vegetable soils SONG Jie(宋 杰), GUO Zhao-hui(郭朝晖), XIAO Xi...; Abstract: Environmental availability and profile characteristics of arsenic (As), cadmium (Cd), lead (Pb) and zinc (Zn) were studied in contaminated vegetable soils from the Pb/Zn......
; 文献标志码:A 文章编号:1672-7207(2012)07-2482-07 Removing arsenic from lead anode slime by oxidation under potential control YANG Tian-zu, WANG An, LIU Wei-feng, ZHANG Du-chao, WEN Jian-feng, WU Jiang-hua (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: Arsenic was leached from......
; 文献标识码:A Pressure leaching technique of smelter dust with high-copper and high-arsenic XU Zhi-feng, NIE Hua-ping, LI Qiang, LU Qiu-hu, WANG Wei, YUE Ri-hui...-copper and high-arsenic smelter dust was studied. The results show that the optimal pressure leaching technique of copper smelter dust is determined as s 0.74 /57 5 /in. Under these conditions......
:X703 文献标志码:A Novel technique for recovery of copper and arsenic from arsenic-containing ... and arsenic from arsenic-containing waste acid discharged from copper smelter was proposed, and the process was composed of neutralization and purification-precipitation of arsenic-washing-leaching......
Trans. Nonferrous Met. Soc. China 24(2014) 1918-1927 Extraction of arsenic from arsenic-containing cobalt and nickel slag and preparation of arsenic-bearing compounds Guo-lin YU1,2, Ying ZHANG2, Shi...: The arsenic extraction from the arsenic-containing cobalt and nickel slag, which came from the purification process of zinc sulfate solution in a zinc smelting factory, was investigated......
料量为罐体容积3/4,额定转速公转250 r/min,自转530 r/min)中球磨一定时间后,取出复合吸附剂,备用. 图1 砷酸铁渣的SEM像和EDS谱 Fig. 1 SEM image(a) and EDS spectrum(b) of simulated arsenic bearing solid waste 图2 砷酸铁渣的XRD谱 Fig. 2 XRD pattern of simulated arsenic bearing solid waste 1.2 实验方法 1.2.1 机械力活化Fe-MnO2对含砷固废的稳定化实验 分别开展了最佳稳定剂种类(Fe-MnO2,Fe-KMnO4,Fe-MnCO3,Fe-MnSO4),铁锰摩尔比(0:1,0.2:0.8,0.4:0.6,0.6:0.4,0.8......
