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新疆某高硫高砷金精矿的预处理氰化浸金试验研究董岁明1,周春娟1(1.陕西省西安市长安大学环境科学与工程学院)摘 要:对新疆某高硫高砷金精矿,加入ZQD助浸剂预处理后氰化浸出,金氰化浸出率由未经ZQD预处理的47.5%增加到89.1%;加入固化剂CaO-Na2CO3二段焙烧(一段450℃,焙烧1 h,二段650℃,焙烧2 h)后,再进行助浸预处理氰化,金氰化浸出率可达95.1%,硫固化率达到80.5%.关键词:高硫高砷金精矿; 预处理; 助浸; 氰化; 金浸出率......
Green evaluation of microwave-assisted leaching process of high titanium slag on life cycle assessment CHEN Guo(陈 菓), CHEN Jin(陈 晋), PENG Jin-hui(彭金辉), WAN Run-dong(万润东) Faculty of Metallurgical... _____________________________________________________________________________________________________ Abstract: A greenness evaluation index and system of microwave-assisted leaching method were established. The effects of the life cycle assessment variables......
Two-stage precipitation process of iron and arsenic from acid leaching solutions N. J. BOLIN, J. E. SUNDKVIST Boliden Mineral AB, SE-936 81 Boliden, SWEDEN Received 20 September...; Abstract: A leaching process for base metals recovery often generates considerable amounts of impurities such as iron and arsenic into the solution. It is a challenge to separate the non......
铟,首先析出含羟基的盐In_2OHP_3O_(10)·9H_2O,随后转变为InH_3(PO_4)_2·4H_2O. 关键词:三聚磷酸钠; 沉铟; 加压浸出液; sodium tripolyphosphate; indium precipitation; pressure leaching liquor; [全文内容正在添加中] ......
Study on gold concentrate leaching by iodine-iodideHai-xia Wang1,Chun-bao Sun1,Shao-ying Li1,Ping-feng Fu1,Yu-guo Song2,Liang Li2,Wen-qing Xie31. Key Laboratory of the Ministry of Education of China... extraction by iodine-iodide solution is an effective and environment-friendly method. In this study, the method using iodine-iodide for gold leaching is proved feasible through thermodynamic......
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dust using an alkaline Na2EDTA solution was investigated. The effects of temperature, leaching time, Na2EDTA concentration and initial NaOH concentration on the leaching rates of lead and zinc were studied. The following optimized leaching conditions were obtained: liquid-to-solid ratio 5:1 mL/g, stirring speed 650 r/min, Na2EDTA concentration 0.12 mol/L, initial NaOH concentration 0.5 mol/L......
the interaction between chemical reactions, solution flow, gas flow, and solute transport within the leaching system. The governing equations are solved numerically using the COMSOL Multiphysics software... area, while the concentration gradient decreases after 72 d of leaching. The flow simulation between ore particles by combining X-ray CT technology shows that the highest velocity in narrow pore......
%;V2O5产品纯度高于99.5%. 关键词:石煤;钒;活化酸浸;活化剂;浸出率 中图分类号:TF841.3 文献标志码:A Process of vanadium extraction from stone coal vanadium ore by activated sulfuric acid leaching at atmospheric..., China) Abstract: The method of activated sulfuric acid leaching of stone coal vanadium ore was studied. The effects of the ore particle sizes, sulfuric acid concentration, amount of active agent......
强的分散单质硫的能力,并能基本消除单质硫对浸出残余硫化矿的沾染. 关键词:煤;硫分散剂;铁闪锌矿;氧压酸浸 中图分类号:TF 111.31 文献标识码:A Application of coal in oxidative pressure leaching of marmatite concentrates XU Zhi-feng1... of Mining and Metallurgy, Beijing 100044, China) Abstract: Oxidative pressure leaching of marmatite concentrates with adding coal as elemental-sulfur disperser was investigated. The experimental results......