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;Effect of hydrochloric acid concentration on leaching efficiency of bismuth and iron 2.2 [Cl-]对Bi,Fe浸出率的影响 量取2 mol/L的HCl溶液300 mL于500 mL烧杯,加入不同质量的CaCl2以调节[Cl-],倒入10.00 g铂钯精矿80 ℃恒温搅拌反应2 h,考察[Cl-]对Bi,Fe...0.66%,但当[Cl-]=5 mol/L时,Ag的浸出率上升至82.92%,因此综合考虑不额外添加Cl-. 图6 Cl-浓度对Bi,Fe浸出率的影响 Fig. 6 Effect of chloride ion concentration on leaching efficiency of bismuth and iron 2.3 浸出温度对Bi,Fe浸出率的影......
of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: Based on the analysis of the leaching toxicity and compressive strength, the sulfuration slag and gypsum slag... that the leaching rate of sulfuration slag is higher than that of gypsum slag, and the leaching toxicity of zinc and cadmium is 1 547.0 mg/L and 104.4 mg/L, respectively. Increasing of sulfur content......
Kinetic process of oxidative leaching of chalcopyrite under low oxygen pressure and low temperature QIU Ting-sheng(邱廷省)1, NIE Guang-hua(聂光华)2, WANG Jun-feng(王俊峰)1, CUI Li-feng(崔立凤)1 1. School...; Abstract: Kinetic process of oxidative leaching of chalcopyrite in chloride acid hydroxide medium under oxygen pressure and low temperature was investigated. The effect on leaching......
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chromate leaching solution in the sub-molten salt process and to reduce CO2 emission, a high efficiency method that uses CO2 to change the pH of the solution for Al precipitation, namely carbonization... in the solution) on the precipitation of Al from synthetic chromate leaching solution containing a high K2O/Al2O3 ratio were investigated. Cluster gibbsite with a narrow particle size distribution......
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XRD谱 Fig. 9 XRD patterns of high antimony dust and leaching residue 2.6 高锑烟尘浸出渣焙烧-酸浸除杂-氰化提取金银 采用静态富氧硫酸化焙烧工艺对高锑烟尘浸出渣进行脱硫,所得焙砂采用非氧化性硫酸浸出工艺分离可溶性金属盐类,酸浸渣采用氰化浸出工艺提取金银. 1) 焙烧工艺:将浸出渣平铺于焙烧盘中,物料厚度不... 旭, 刘志宏, 李玉虎, 刘智勇,李启厚. 苛性碱溶液氧压浸出高砷锑烟尘[J]. 中南大学学报(自然科学版), 2014, 45(5): 1390-1396. ZHANG Xu, LIU Zhi-hong, LI Yu-hu, LIU Zhi-yong, LI Qi-hou. Oxygen pressure leaching of arsenic and antimony bearing flue......
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Bao-zhong, YANG Wei-jiao, WANG Shuo, YANG Bo, WANG Cheng-yan. High-pressure sulfuric acid leaching of laterite ores using nitrate ion as an oxidant[J]. Chinese Journal of Rare Metals, 2016, 40(7... at atmospheric pressure with agitation leaching[J]. Hydrometallurgy, 2009, 97(1): 33-38. [11] LI Guang-hui, RAO Ming-jun, LI Qian, PENG Zhi-wei, JIANG Tao. Extraction of cobalt from laterite ores by citric......
