anode slime leaching with thiourea

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anode slime leaching with thiourea

PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION .

PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION .

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Processing of anodic slimes from an Egyptian copper electrorefining plant, exhibiting high contents of copper, lead, tin and silver has been presented. The proposed hydrometallurgical process consists of two leaching stages for extraction of copper with H2SO4 – O2 and silver with thiourea .

Lead leaching mechanism and kinetics in electrolytic .

Lead leaching mechanism and kinetics in electrolytic .

anode slime was reduced and obtained in a sulfuric acid mixture (Wei et al., 2017). The extent of manganese leaching in anode slime was> 99%. The content of lead, whose form was mainly lead sulfate, was larger than 43% after the anode slime was concentrated and leached. Shu et al. (2017) found that the main forms of manganese in anode

Selenium Recovery in Precious Metal Technology

Selenium Recovery in Precious Metal Technology

Selenium is mostly extracted from copper anode slimes because the selenium-rich ores are too rare to be mined with profit. When copper anode slimes are processed in a precious metal plant the first step is to remove copper by pressure leach in an autoclave. The anode slime .

Using thiourea ligand of gold-thiourea complex to facile .

Using thiourea ligand of gold-thiourea complex to facile .

Jul 22, 2015 · This study investigates a new method of [email protected] core–shell nanoparticle (SGNP) synthesis using copper anode slime as a secondary source of gold. Thiourea can form cationic complex with gold in gold extraction process of copper anode slime. Silica nanoparticles were used as cores and their surface was coated by a cationic gold-thiourea solution.

Lead Anode Slime Treatment-Lead- - Metalcess

Lead Anode Slime Treatment-Lead- - Metalcess

The chloride leaching solution of lead anode slime is used to recover Cu/ Bi/Sb separately. As a conclusion, it is widely acknowledged that the anode slime is complex in content but of high value, and the tendency to utilize the anode slime .

Mineral Processing and Extractive Metallurgy Review

Mineral Processing and Extractive Metallurgy Review

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 .

US4283224A - Separative treatment of anode slime - Google .

US4283224A - Separative treatment of anode slime - Google .

A hydrometallurgical process is provided for the separative treatment of electrometallurgical anode slime containing precious metals and substantial amounts of tin dioxide and lead sulfate. The process is especially suited for treatment of anode .

Leaching behavior of metals from copper anode slime using .

Leaching behavior of metals from copper anode slime using .

Compared to the previous works, for example, Li et al. (2015) investigated leaching behavior of metals from copper anode slime using an alkali fusion-leaching process. The leaching rate of Sn, Pb .

Precious Metal Recovery from Anode Slime-Slag/Dross Recovery-

Precious Metal Recovery from Anode Slime-Slag/Dross Recovery-

The chloride leaching solution of lead anode slime is used to recover Cu/ Bi/Sb separately. As a conclusion, it is widely acknowledged that the anode slime is complex in content but of high value, and the tendency to utilize the anode slime .

Leaching behavior of metals from copper anode slime using .

Leaching behavior of metals from copper anode slime using .

The leaching behavior of metals from copper anode slime was investigated using an alkali fusion-leaching process for the preliminary separation of metal values. The slime was fused with sodium hydroxide (NaOH) and sodium nitrate (NaNO 3) followed by water leaching.

Determination of gold in solutions of thiourea .

Determination of gold in solutions of thiourea .

On the Chemistry of Gold Lixiviation by Thiourea. Mineral Processing and Extractive Metallurgy Review 1992, 11 (1-2), 39-60. DOI: 10.1080/08827509208914213. E. Becker, M. Knothe, J. Löbel. Gold recovery from non-metallic secondary raw materials by leaching with thiourea .

EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND .

EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND .

2009) published a review of anode slime processing, including anode slime leaching by sulfuric acid. Research on gold, silver and copper separation had been accomplished by Bard and Sobral (2008) using hydrochloric acid solution adding sodium hypochlorite solutions as an oxidizing agent. The goldand silver can be separated from the after slime

Anode slimes treatment: The boliden experience | Scinapse

Anode slimes treatment: The boliden experience | Scinapse

Apr 01, 2003 · Anode slime is an extremely valuable secondary resource for the recovery of silver and has attracted wide attentions. Effective metal recovery is usually constrained by either environmental hazards or high consumption of lixiviant for cyanide and non-cyanide leaching .

Anode Slime Gained During Electrolysis Process of .

Anode Slime Gained During Electrolysis Process of .

(Thiourea and gelatin ) etc.[4] Characteristics of the Secondary Copper Anodes . Before the leaching, the decoppered anode slime was washed several times, filtered and then dried at laboratory in the respective types of equipment. Samples of the dried anode slime are given in Fig. 4.

Lead Anode Slime Treatment-Lead- - Metalcess

Lead Anode Slime Treatment-Lead- - Metalcess

The chloride leaching solution of lead anode slime is used to recover Cu/ Bi/Sb separately. As a conclusion, it is widely acknowledged that the anode slime is complex in content but of high value, and the tendency to utilize the anode slime .

Stephen FOLEY, et al. : Gold Extraction

Stephen FOLEY, et al. : Gold Extraction

The resulting data obviously shows almost completely extraction of gold and palladium from copper anode slime. EXAMPLE 10 Following 2 time leaching of 1.5 kg copper anode slime said in example .

copper anode slime processing plant - Pay For Work

copper anode slime processing plant - Pay For Work

Lead Anode Slime TreatmentLead. Whereas the lead anode slime is firstly treated with chloride leaching and then the leaching residue can be mixed with deselenium and decoppered copper anode slime for further recovery. The chloride leaching solution of lead anode slime .

Development of a hydrometallurgical process for the .

Development of a hydrometallurgical process for the .

Mar 20, 2019 · 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 .

EFFECT OF OXIDIZING AGENTS IN EXTRACTING GOLD FROM ANODE SLIME

EFFECT OF OXIDIZING AGENTS IN EXTRACTING GOLD FROM ANODE SLIME

Extraction of gold, silver and copper from the copper electrorefining anode slime; separation of the metals, Global Symposium on Recycling, Waste Treatment and Clean Technology. Hait, J., Jana, R., Vinay, and al S., 2002. Some studies on sulfuric acid leaching of anode slimes with additives, Industrial Engineering Research, 41, 6593-6599.

(PDF) Extraction of copper and gold from anode slime of .

(PDF) Extraction of copper and gold from anode slime of .

The copper anode slime of Sarcheshmeh Copper Complex was used in this study, and the reagents (sulphuric acid 88%, nitric acid 55%, hydrochloric acid 28%, oxalic acid 99.7%,

Determination of gold in solutions of thiourea .

Determination of gold in solutions of thiourea .

Effects of cysteine and oxygen on recovery of cemented gold from leach liquors in a thiourea system. Minerals Engineering 1999, 12 (6), 645-653. DOI: 10.1016/S0892-6875(99)00049-7.

Some Studies on Sulfuric Acid Leaching of Anode Slime with .

Some Studies on Sulfuric Acid Leaching of Anode Slime with .

Nov 13, 2002 · The process involved the leaching of anode slime in sulfuric acid medium. At room temperature, sulfuric acid leaching without any additive resulted in poor recoveries of metals other than copper. With the addition of MnO 2 to the leaching .

EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND .

EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD AND .

2009) published a review of anode slime processing, including anode slime leaching by sulfuric acid. Research on gold, silver and copper separation had been accomplished by Bard and Sobral (2008) using hydrochloric acid solution adding sodium hypochlorite solutions as an oxidizing agent. The goldand silver can be separated from the after slime

Leaching of gold and silver from anode slime with a .

Leaching of gold and silver from anode slime with a .

Feb 13, 2019 · 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).Effect of the concentration of oxidizing agents, reaction temperature and time, pulp density and stirring speed on the leaching .

v116n12a9 Extraction of copper and gold from anode slime .

v116n12a9 Extraction of copper and gold from anode slime .

For the extraction of copper by leaching, the anode slime was heated and stirred with 4 M sulphuric acid in the presence of oxygen. Optimal conditions for recovery of copper were temperature 80°C, mixing time 5 hours, and oxygen flow rate 2 L/min, resulting in a copper recovery of 94.47%. Silver and selenium were dissolved by leaching anode slime

EXTRACTION OF GOLD, SILVER AND COPPER FROM THE .

EXTRACTION OF GOLD, SILVER AND COPPER FROM THE .

In the anode surface one has: Cuo ⇔Cu2++2e− (1) In the cathode one has: Cu2++2e−⇔Cuo (2) The anode slime is collected in the bottom of the electrolytic cells during the copper electrorefining. This slime .

Lead leaching mechanism and kinetics in electrolytic .

Lead leaching mechanism and kinetics in electrolytic .

anode slime was reduced and obtained in a sulfuric acid mixture (Wei et al., 2017). The extent of manganese leaching in anode slime was> 99%. The content of lead, whose form was mainly lead sulfate, was larger than 43% after the anode slime was concentrated and leached. Shu et al. (2017) found that the main forms of manganese in anode

Research on Process of Hydrometallurgical Extracting Au .

Research on Process of Hydrometallurgical Extracting Au .

Abstract. Copper anode slime is an increasingly significant resource for precious metals such as Au, Ag and Pd. The extraction of Au, Ag and Pd from decopperized anode slime by different pretreatments and different lixiviants including cyanide, chloride, thiourea and thiosulfate have been investigated.

Recovery of metals from chloride leach solutions of anode .

Recovery of metals from chloride leach solutions of anode .

Anode slime produced in a Korean metal recycling plant, contained gold, silver, copper, nickel, tin and zinc ().In order to recover the gold and silver from the anode slime, the metals in anode slime are dissolved in concentrated hydrochloric acid solutions at 90 °C in the presence of an oxidizing agent (H 2 O 2, HNO 3, NaClO) (Xing and Lee, 2017).

copper anode slime processing plant - Pay For Work

copper anode slime processing plant - Pay For Work

Lead Anode Slime TreatmentLead. Whereas the lead anode slime is firstly treated with chloride leaching and then the leaching residue can be mixed with deselenium and decoppered copper anode slime for further recovery. The chloride leaching solution of lead anode slime .