共搜索到8422条信息,每页显示10条信息,共843页。用时:0小时0分0秒296毫秒
......
......
Changes of leaching rate before and after shock wave action 在柱浸试验初期,浸出液浓度最高,铜浸出率上升较快.随着浸出反应的不断循环进行,铜离子浸出的速率减小,曲线变化趋于平缓.在浸出后期,铜的浸出率几乎不发生变化,浸出液中的铜离子几乎不再增加,试验结束.在经过应力波作用后,浸出率由55.96%提高至65.27%,增幅达... of preferential solution flow during dump leaching[J]. Journal of Central South University of Technology, 2006, 13(5): 590-594. [3] POISSON J, CHOUTEAU M, AUBERTIN M. Geophysical experiments to image......
. 关键词:粘土矿;浸出动力学;收缩核模型;活化能 中图分类号:TF803.2;TF841.3 文献标识码:A 文章编号:1672-7207(2008)06-1181-04 Leaching...) Abstract: In order to improve the leaching efficiency of vanadium pentoxide from clay mineral and provide its theoretical base, the leaching process was analyzed. The effects of reaction......
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......
......