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Behavior of silver and lead in selective chlorination leaching process of gold-antimony alloy LIU Wei-feng(刘伟锋), YANG Tian-zu(杨天足), XIA Xing(夏 星) School of Metallurgical Science...; Abstract: The behavior of silver and lead in the selective chlorination leaching process of gold-antimony......
and the period of oxidation. The chemical state of sulfur in sulfides oxidized by leaching bacteria was studied with XPS. Sulfide minerals in the arsenic-bearing gold concentrate consist of pyrite... concentrate. The size of grains is below 0.074mm. After the gold concentrate is oxidized with leaching bacteria, the metal luster on sulfide minerals disappears completely. It is shown by the X-ray......
提高含碲金精矿中金,银氰化浸出率试验研究薛光1,于永江2,薛元昕3(1.山东省烟台市人民武装警察部队黄金第七支队2.烟台金慧矿冶技术研究有限公司3.烟台职业学院)摘 要:对提高某含碲金精矿金,银的氰化浸出率进行了试验研究.试验结果表明,试验采用的工艺方法对含碲金精矿进行氰化浸出,金,银的氰化浸出率可分别达97.17%和95.57%,比常规氰化浸出分别提高了12.07%和18.17%.关键词:含碲金精矿； 氰化； 金； 银； 浸出率......
,the leaching rates of gold and silver are 78.23%and 49.02%,respectively.To eliminate the negative effects of arsenic and manganese on cyanidation and increase the gold and silver leaching rates,a novel... under certain conditions,the gold leaching rate increased to over 90%and the silver leaching rate increased to 80%-90%.The catalyst can effectively liberate gold and silver from the enclosure of arsenic......
从酸浸渣中综合回收金银铁铅的试验研究薛元昕1,薛光2(1.山东省烟台市烟台职业学院2.中国人民武装警察部队 黄金第七支队)摘 要:对从酸浸渣中综合回收金银铁铅进行了试验研究.试验结果表明,采用试验确定的工艺方法,不但可回收酸浸渣中铁铅,还可提高金银的氰化浸出率,分别可达98%和70%以上,能获得较好的经济效益和社会效益.关键词:酸浸渣； 浸铁； 浸铅； 氰化浸出； 金； 银......
; 文献标志码:A Characteristics of gold leaching from acidic antimony leaching residue in Hunan Province, China YANG Yong-bin, LIU Bo, LI... and gold cyanidation experiment, the characteristics of gold leaching and the affecting mechanism of oxidizing roasting pretreatment were studied on an acidic antimony leaching residue. The process......
氯化烘焙-ZLT工艺提金扩大试验李世桢1,石嵩高2,李质毅1,薛丽贤2,左玉明2(1.吉林省长春市长春黄金研究院2.吉林省地质科学研究所)摘 要:介绍了氯化烘焙-ZLT提金工艺处理某难处理金精矿的小型试验及扩大试验研究结果.在试验确定的4个主体作业工艺条件下,扩大试验金的氯化浸出率达95%,最高可达98%.试验结果表明:该工艺具有对原料适应性强,浸金速度快,金回收率高,成本低等显著特点.关键词:氯化烘焙； ZLT工艺； 氯化浸金； 扩大试验； 金； 浸出率......
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......
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-in-pulp(CIP) cyanide leaching process was used. Various methods were used to detect the low-grade gold in the concentrate; however, only time-of-flight secondary-ion mass spectrometry(TOF-SIMS) was successful. With bio-pretreatment, the gold recovery rate increased by approximately 70.16% compared with that obtained by direct cyanide leaching of the concentrate. Various attempts were made......
