Anode slime is a byproduct from copper or lead electro-refining process. The copper/lead anode slime usually contain As, Sb, Bi and precious metals like gold and silver. Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, i.e. pyrometallurgy and hydrometallurgy.
· Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold. This article provides a comprehensive overview of the development of the extraction processes for recovering silver and gold from conventional copper anode slimes. Existing processes, namely pyrometallurgical processes ...
Processing of copper anodic-slimes for extraction of valuable metals, Physicochemical Problems of Mineral Processing, 36, p. 123-134. Bard, Gabrielle and Sobral, 2008. Extraction of gold, silver and copper from the copper electrorefining anode slime; separation
A method for recovering gold from copper anode slime is provided. The method comprises washing copper anode slime with an acid so as to obtain a slime-acid solution. The method further comprises obtaining a washed copper anode slime from the slime-acid ...
Anode slime is an important secondary resource for recovery of silver. However, high energy consumption and serious pollution limit the recovery with current processes. In this study, an effective and environmentally friendly process was developed for selective recovery of silver from copper anode slime, which consisted of oxidative pretreatment-thiosulfate leaching-electrodeposition.
Recovery of Silver and Gold from Copper Anode Recovery of Silver and Gold from Copper Anode Slimes AILIANG CHEN,1 ZHIWEI PENG,2,3,6 JIANN-YANG HWANG,3,4 YUTIAN MA,5 XUHENG LIU,1 and Inquire Now Copper anode slime in French English
· In order to develop a hydrometallurgical process to recover gold and silver from anode slime resulted from the treatment of copper sludge, leaching experiments of the anode slime were performed by a mixture of HCl and some oxidizing agents (H 2 O 2 3).
Anode slime is a byproduct from copper or lead electro-refining process. The copper/lead anode slime usually contains As, Sb, Bi and precious metals like gold and silver. Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, i.e. pyrometallurgy and hydrometallurgy.
Complete dissolution of silver was difficult in the presence of chloride ion. Abstract In order to develop a hydrometallurgical process to recover gold and silver from anode slime resulted from the treatment of copper sludge, leaching experiments of the anode slime were performed by a mixture of HCl and some oxidizing agents (H2O2, NaClO, and HNO3).
Copper Anode Slime. Anode slime is a byproduct of copper or lead electro-refining process and found in electrolytic cell bottom or on the anode scrap surface. The copper anode slime and lead anode slime usually contain precious metals like gold and silver. Depending on the treatment capacity, process of anode slime recovery is achieved by two ...
Recovery of gold from copper anode slimes is a multi-stages process; at first stage selenium and copper were separated from anode slime. Then, anode slime was roasted Table 1. The chemical composition of anode slim Chemical composition Weight.%
· This study has shown that gold and silver can be recovered from a complex anode slime containing copper, selenium, and tellurium, but a carefully planned leaching procedure is required. To extract the gold with thiourea, it is necessary to first remove the copper, selenium, tellurium, and most of the silver from the mixture.
Extracting Silver from Anode Slime After Lead and Gold Separations, Isyatun Rodliyah and Siti Rochani 33 to the presence of chloride and thiourea. The copper separation will generate AgAu - selenide phase that is rich in gold and silver. Furtherly those elements
Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold. This article provides a comprehensive overview of the development of the extraction processes for recovering silver and gold from conventional copper anode slimes. Existing processes, namely pyrometallurgical processes ...
To extract gold and silver from a copper anode slime with about 15% tin in a plant using the traditional pyrometallurgy-electrorefining technique, the recovery is only 90%. The rest of the gold and silver is lost in the slag which contains mainly SnO 2, PbO, and Sb 2 O 3 In the present work, a process is developed to recover the gold and silver further.
In order to develop a hydrometallurgical process to recover gold and silver from anode slime resulted from the treatment of copper sludge, leaching experiments of the anode slime were performed by a mixture of HCl and some oxidizing agents (H 2 O 2, NaClO, and HNO 3).).
Hydrometallurgical gold recovery from primary or secondary sources is mainly based on a cyanide process, which is very dangerous for the environment due to the high toxicity levels. In view of the environmental effect, the present study proposes a new green solvent called 1-ethyl-3-methyl-imidazolium hydrogen sulfate (EmimHSO4) ionic liquid (IL) to recover gold from copper anode slime …
The anode slime produced in electrolytical refining of copper contained various metals, such as gold, silver, copper, lead, tin, bismuth, antimony, selenium, etc. For the purpose of comprehensive utilization this hydrometallurgical process can be used to recover these valuable components respectively.
Recovery of Gold and Silver from Copper Anode Slime This study has shown that gold and silver can be recovered from a complex anode slime containing copper, selenium, and tellurium, but a carefully planned leaching procedure is required. To extract the gold with ...
Copper anodic slime which is an insoluble residue of copper electro-refining process contains valuable elements such as gold, silver, selenium and tellurium and is a byproduct of copper ingot production. Copper anodic slime contains 0.12% gold approximately. The ...
Abstract A clean hydrometallurgical process has been developed to efficiently and economically recover selenium, copper, gold, silver and lead from a copper anode slime. The mixture of H2SO4 and H2O2 was demonstrated to be effective for selenium leaching based on their synergistic effects, and the potential synergy mechanism was proposed. Na2SO3 reduction and iron powder precipitation were ...
· In order to recover gold and silver from anode slimes containing Cu, Ni, Sn, and Zn, an integrated hydrometallurgical process consisting of leaching, solvent extraction, and cementation was developed. All the metals together with 10% of Ag (I) were dissolved by the mixture of HCl and H 2 O 2 at the optimum conditions.
Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold. This article provides a comprehensive overview of the development of the extraction processes for recovering silver and gold from conventional copper anode slimes.
· Recovery of Silver and Gold from Copper Anode Slimes Recovery of Silver and Gold from Copper Anode Slimes Chen, Ailiang; Peng, Zhiwei; Hwang, Jiann-Yang; Ma, Yutian; Liu, Xuheng; Chen, Xingyu 2014-09-11 00:00:00 JOM, Vol. 67, No. 2, 2015 DOI: 10.1007/s11837-014-1114-9 2014 The Minerals, Metals & Materials Society 1 2,3,6 3,4 AILIANG CHEN, ZHIWEI PENG, JIANN-YANG …
· Comprehensive recoveries of selenium, copper, gold, silver and lead from a copper anode slime with a clean and economical hydrometallurgical process Chem. Eng. J., 393 ( 2020 ), p. 124762
· A clean hydrometallurgical process has been developed to efficiently and economically recover selenium, copper, gold, silver and lead from a copper anode slime. The mixture of H 2 SO 4 and H 2 O 2 was demonstrated to be effective for selenium leaching based on their synergistic effects, and the potential synergy mechanism was proposed.
· Ag recovery from copper anode slime by acid leaching at atmospheric pressure to synthesize silver nanoparticles Int. J. Min. Sci. Technol., 24 ( 2014 ), pp. 251 - 257 Article Download PDF View Record in Scopus Google Scholar
· During our ongoing work on the recovery of gold from the chloride leach liquor of anode slime which contained copper, nickel, silver, tin and zinc, Au(III) was selectively recovered by solvent extraction with Cyanex 272 (Xing et al., 2018a). Further work is necessary
The anode slime produced in the refining of copper by electrolysis contains that part of the anode which is insoluble in electrolyte and contains varying quantities of copper,nickel,silver,gold,selenium,tellurium,arsenic,lead,etc pending on the anode. The main object ...
Yavuz and Ziyadanogullari (2000) studied the recoveryof gold and silver from copper anode slime. The slimecontained Cu, Te, and Se in addition to Ag and Au. Pressureleaching with sulphuric acid in an autoclave was used toremove Cu. Selenium and tellurium were extracted by Na2SO3or Na2S solutions and the remained selenium was removedby roasting. They found that if the roasted samples areleached first with concentrated sulphuric acid in an autoclaveat 350°C under 800 kPa oxygen pressure, and then with 0.1M sulphuric acid followed by 3 M ammonia solution, most ofthe silver can be dissolved. Gold was recovered …
· A clean hydrometallurgical process has been developed to efficiently and economically recover selenium, copper, gold, silver and lead from a copper anode slime. The mixture of H 2 SO 4 and H 2 O 2 was demonstrated to be effective for selenium leaching based on their synergistic effects, and the potential synergy mechanism was proposed.
The recovery of selenium from Iranian sar-cheshmeh copper anode slime has been investigated. Copper anode slimes are containing varying precious metals, such as: gold, silver, selenium and tellurium. They are being extracted as a by-product in the
12.86 % copper, 3.35 % silver, 0.1 % gold and about 45% barite, plus lead, tellurium, antimony, sulphur, ... selenium, tellurium and gold. The decopperised anode slime is first leached with nitric acid at a concentration of about 4 to 9 M and at an elevated40-115 ...