共搜索到3067条信息,每页显示10条信息,共307页。用时:0小时0分0秒500毫秒
......
某金矿床氧化矿石工艺矿物学研究 史光大1,刘飞燕1,杨磊1 (1.中国地质科学院矿产综合利用研究所,四川,成都,610041) 摘要:某金矿床氧化矿石含金8.1g/t,含银82.5g/t,含铜0.94%.金主要以自然金,银金矿形式存在,银主要以银铁矾,角银矿形式存在,铜主要以赤铜矿,黑铜矿,蓝铜矿形式存在.矿石氧化率高,孔洞,裂隙发育,渗透性良好,适宜湿法浸出.由于粘土矿物含量高,氧化铜矿物易溶于氰化物溶液,并产生影响金,银回收的Cu(CN)2-3离子,因此推荐采用脱泥→湿法预处理→氰化浸出金,银的工艺流程,综合回收矿石中金,银,铜. 关键词:氧化矿石; 工艺矿物学; 赋存状态; 氰化浸出; Oxidized ore; Process mineralogy; Occurrence; Cyanide leaching; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 23(2013) 1165-1173 Fe extraction from high-silicon and aluminum cyanide tailings by pretreatment of water leaching before magnetic separation Ya-li ZHANG, Huai-mei...- and Al-containing cyanide tailings by water leaching to remove some impurities, such as the major impurities minerals of Si and Al, as well as its effect on Fe extraction in the water leaching process......
of iron extraction and gold recovery from cyanide tailings by cyanide process after reduction roasting and acid leaching[J]. The Chinese Journal of Nonferrous Metals, 2014, 24(9): 2426-2433. [4] FU Ping-feng, LI Zhen-yu, FENG Jie, BIAN Zhen-zheng. Recovery of gold and iron from cyanide tailings with a combined direct reduction roasting and leaching process[J]. Metals, 2018, 8(7): 561. [5] 谢建宏, 张崇辉......
of a refractory ore to the extraction of gold and silver by cyanide leaching was investigated. Diagnostic leaching tests were also performed to shed light on the refractory characteristics of ore. The leaching... refractoriness prior to cyanide leaching. Key words: gold and silver ores; refractoriness; characterization; diagnostic leach  ......
高铜载金炭脱铜试验研究陈淑萍1,伍赠玲1(1.福建省龙岩市上杭县紫金矿冶设计研究院)摘 要:针对载金炭中铜品位高对金的吸附,解吸,电积和冶炼存在较大影响问题,进行了高铜载金炭氰化脱铜试验研究,结果表明:载金炭中铜的脱除率达到91%以上,金基本不被浸出;脱铜后载金炭经高温高压无氰解吸,金的解吸率明显得到提高.关键词:高铜载金炭; 脱铜; 氰化钠; 酸化回收......
. It is impossible to dissociate the monomer by fine grinding and ultra-fine grinding and difficult to extract gold by the traditional cyanide leaching method. In order to achieve the economic and feasible... The pH values of the leaching solution were determined with Metrohm 902 Titrando and the potential measurement was conducted with SUNTEX PC-350. At the end of the cyanide leaching tests......
of cyanidation leaching, arsenopyrite is very stable and does not participate in any side reactions, conversely, realgar participates in the side reactions with cyanide and alkali. The efficiency...:A Biooxidation-cyanidation leaching of gold concentrates with different arsenic types CUI Ri-cheng, YANG Hong-ying, FU Yao, CHEN Sen, ZHANG Shuo (School of Materials and Metallurgy, Northeastern......
......
is necessary to determine the optimum conditions for modeling of gold leaching in cyanide media. Many researchers studied on dissolution and modeling of gold ores cyanidation [1-8]. Artificial neural network... with the experimental results, as shown in Fig.6. It is indicated that model of ANN exactly reflects the correlation between the input and output layers. The function of gold cyanide leaching parameters......