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Process for the flotation of anode slime from copper electrolysis comprising subjecting the anode slime, as a preliminary treatment, to attrition treatment in combination with a copper leaching treatment in a medium of an acid solution. The floated material obtained from the flotation is continuously subjected to three processes of roasting, melting and cupellation in a rotary furnace lined ...
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Some of the nickel ends in anode slime. Pb, Zn, and Sn are rejected in slag or offgas, especially in bath smelting, and in converting, less than 10% of these end up in blister copper. Pb can also be removed in the anode furnace by using silica flux. Pb, Zn, and Sn end up in anode slime during electrorefining.
There are numerous viable approaches to the treatment of anode slimes from electrolytic copper refining. Of particular interest in the treatment of slimes are the behavior and recovery of selenium. The understanding of the process chemistry involved in the treatment of anode slimes should be aided considerably by recent work on the formation and characterization of slimes.
Arsenic-rich anode slime was chosen for the experiments. Table 1 gives the main chemical composition of metallic elements in the homogenized sample by titrimetric method. There was 19.35 wt% of arsenic, 24.75 wt% of antimony and 3.88 wt% of silver in the arsenic-rich anode slime, as shown in Table 1.The reductant was charcoal powder in this study.
CN103484693A Harmlessness method for treating ... CN102787246B Smelting production method and device of ... CN103397191A Method for comprehensively efficiently processing lead anode slime by ...
Anode slime is the 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 different methods ...
The casting machine consists of pouring ladle, constant volume casting ladle with balancing device, casting wheel, water spraying device, anode lifting pin and pin repositioning device, mold dressing spraying device, defective anode rejection device and anode copper water cooling tank, etc.
US20110174632 Material surface treatment method using ... CN102094215A Horizontal movement type continuous electrolytic method and device of ... WO2011063577A1 Method of washing anode slime .
so that the slime drops to the base of the cell and does not come into contact with the cathode. • Figure 6.3.3. Diagram showing the structure of the cells in which the electrolytic refining of copper is carried out. The anodes and cathodes are connected to the + and - current lines respectively.
Abstract: An electronic water treating device comprising a brass body from which projects a graphite anode and to which is secured a stainless steel canister which functions as a cathode. The device includes an electronic power head connected to an external power supply. A 115 volt AC house current is transformed into two 6.3 volt circuits.
The anodes are cast in open cast-iron molds, and are of the dimensions given in Fig. 4. They are suspended from the conductors by C-shaped hooks of gold, which pass through the hole at the top of the anodes and over bars which form the conductors for the current. The anodes are immersed for their full depth in the electrolyte. B.
Anode slime is the 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 different methods ...
For byproduct recovery, for example, the anode slime treatment, Metalcess developed a series of mini-process like anode slime pressure leaching, small capacity-oriented TBRC smelting, gold extraction from lead distillation system, etc. Full process of lead fire-refining includes several steps to remove Cu, Te, As, Sb, Sn, Ag, Zn, Bi in sequence.
An ultra fast decopperization method from the anode slime has been developed based on the ultrasound-assisted leaching. The effects of parameters such as ultrasound power, leaching time, sulfuric acid concentration and liquid/solid ratio were investigated. Under optimum conditions, the concentration of Cu in residue was only 2.64%. The removal efficiency increases considerably
Anode slime is an important material of recycling precious metals. Up to now, treating the arsenic- and antimony-rich anode slime by conventional processes has the following problems: its economic and environmental effect is less than satisfactory, and the removal effect of arsenic and antimony from anode slime in present processes is not all that could be desired.
The copper anode slime produced in one copper smelter domestically was pre-treated with pressure acid leaching method and the leaching behavior of copper,tellurium and selenium in copper anode slime was studied.The results show that this method can attain thorough removal of copper and part removal of tellurium and selenium and the silver is still not leached in leaching process.
Ultrasound-assisted leaching provided a rapid and efficient method to directly remove Cu from copper anode slime. The research was carried out at atmospheric pressure and home temperature. Optimum conditions for the lab experiment were ultrasound energy of 800 W, sulfuric acid concentration of 200 g·L −1, the ratio of liquid to solid of 4 ...
This method, known as a sacial system, uses metal anodes, introduced to the electrolytic environment, to sace themselves (corrode) in order to protect the cathode. While the metal needing protection can vary, sacial anodes are generally made of zinc, aluminum, or magnesium, metals that have the most negative electro-potential.
Anode slime samples were collected from the bottom of the electrolytic cells during the electro-refining of copper. These samples were sieved through a 2.0 mm sieve to remove large inclusions of copper and other foreign material present in the slime. A representative sample of the feed slime was analysed for Cu, Pb, Sn, Zn, Ni, Fe,
A vacuum evaporation technology for treating antimony-rich anode slime was developed in this work. Experiments were carried out at temperatures from 873 K to 1073 K and residual gas pressures from ...
High values of anode slime particle diameter were the result of presence of the elementary copper self-shaking from the cathode surface during the electrorefining process. The lowest value of the anode slime particle size, Fig. 3, was obtained using the A3 anode, which contains the highest ingredi-ents content (Table 1).
The alkaline roasting of copper anode slime is an efficient method to recover precious metals such as selenium, tellurium, silver and gold. In this work we focus on recover selenium. In alkaline roasting processes different parameters such as Na 2 CO 3 /anode slime ratio, temperature and time can influence the process.
MATERIALS AND METHODS The anode slime obtained from Indian Copper Complex, Ghatsila was used ... having the speed and temperature controlling devices. Leachants used were sulphuric ... gold, platinum, lead, arsenic etc. Of particular importance to the slime treatment is a knowledge of various phases present in the slime, which has direct ...
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