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氰化物添加系统的改造及效果王宝胜1(1.山东省烟台市莱州市山东黄金矿业(莱州)有限公司三山岛金矿)摘 要:某矿山氰化厂对金精矿氰化浸出加氰化物系统进行自动化改造后,实现了浸出过程中氰化物的添加均衡稳定,氰化物浓度控制在要求值,优化了金氰化浸出指标,降低了氰化物消耗,实现了氰化物无泄露输送,安全环保. 关键词:金精矿氰化; 氰化物消耗; 自动添加; 金浸出率......
体系中过氧化氢起到了强化阴极过程和氧化硫化物的双重作用. 关键词: 金矿石; 氰化浸出; 重金属; 电化学 中图分类号: TF111.3 文献标识码: A Cyanide leaching of gold ores by heavy metal ions YANG Yong-bin, LI Qian, JIANGg Tao, JIN Yong-shi (Scholl... of cyanide leaching for gold occurring in an oxides ore and a sulfides concentrate, were studied on the basis of electrochemical investigation. The results indicate that these heavy metals greatly intensify......
943-2018. 黄金行业氰渣污染控制技术规范[S]. HJ 943-2018. Technical specification pollution control of cyanide leaching residue in gold industry[S]. [7] 董凯伟, 白云龙, 谢 锋, 等. 氰化废水回收技术综述[J]. 有色金属(冶炼部分), 2020(4): 75-83. DONG... of cyanide tailing[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(6): 1568-1581. DOI: 10.11817/j.ysxb.1004.0609.2021-37785 自1887年发现氰化物溶液可以溶金以来,氰化提金工艺的应用已有一百多年的历史.近年来,人们一直致力于非氰浸金工艺的研究,但氰化提金工艺具......
96.66 wt%. The cyanidation results showed that the cyanide gold leaching rate of acid leaching residues was close to 100 wt%. However, the maximum cyanide gold leaching rate of gold calcine was only 85.31 wt%. This suggests that acid leaching can increase the gold dissolution rate in the cyanide process.关键词:......
of water leaching before magnetic separation[J]. Transactions of Nonferrous Metals Society of China, 2013, 23(4): 1165-1173. [15] YANG Xiu-li, HUANG Xiong, QIU Ting-sheng. Recovery of zinc from cyanide...进行量热试验较为合适. 图3 丁基黄药用量和活化剂用量对氰化黄铜矿回收率的影响 Fig. 3 Effects of butyl xanthate(a) and activator(b) dosages on recovery of cyanide chalcopyrite 次氯酸钠为强氧化剂,当其用量较低时可优先对CN-起氧化作用[15],由图3(b)可看出,随着次氯酸钠......
enter into nonmagnetic materials by water leaching, thus realizing the effective separation of impurities and Fe. Key words: high-aluminum and silicon; cyanide tailings; water leaching; grade; recovery...; 文章编号:1672-7207(2012)01-0046-08 Process of Fe extraction from high-aluminum and silicon cyanide tailings ZHANG Ya-li1, 2, LI Huai-mei2, YU Xian-jin2, LI Xiao-bin1 (1. School......
and discussion 3.1 Fundamental cyanide leaching characteristics Fundamental leaching characteristics of these three kinds of gold containing materials were studied though conventional cyanide leaching... as 48 h. Therefore, sulphide gold concentrate A was a typical refractory gold concentrate which is difficult to be effectively leached by conventional cyanide leaching. In contrast, sulphide gold......
spectrum. The proposed method was applied to extract of Pd(II) and Pt(II) from leaching cyanide liquor of Pt-Pd flotation concentrate. The enrichment factor of 15 is achieved. The recovery rate...加压氰化液成分 Table 1 Chemical compositions of pressure cyanide solution of flotation concentrate 从表1可以看出,实验所用该浮选精矿加压氰化液主要由贵金属钯,铂及少量贱金属铁,钴,镍和铜构成. 实验所需设备如下:日本HITACHI公司生产的Z-2000型原子吸收光度计, 日本SHIMADZU公司生产......
, Centr)Abstract:The standard lead and zinc concentrate were prepared from cyanide tailings derivatives. By using X system in the atmospheric pressure for oxidize leaching, the influences of leaching...%, respectively, and the recovery rate of elemental sulfur is 99.1%.Key words:cyanide tailings derivatives; oxidation leaching; lead concentrate; zinc concentrate......
从含银锰精矿中浸出银的试验研究 徐之帅1,张晋霞2,苏成德2,牛福生2,白丽梅2 (1.新疆煤炭设计研究院有限责任公司,新疆,乌鲁木齐,830000;2.河北理工大学资源与环境学院,河北,唐山,063009) 摘要:通过对某银锰精矿的选矿试验研究,确定中温氯化焙烧-氰化浸出作为选矿原则流程.试验结果表明,在氯化焙烧采用中温750℃,焙烧时间30min以及氰化钠用量6kg/t,浸出时间1h的条件下,银的浸出率可达88.54%. 关键词:银锰精矿; 氯化焙烧; 氰化浸出; silver-manganese concentration ore; chloridizing roasting; cyanide leaching; [全文内容正在添加中] ......