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High values of anode slime particle diameter were the result of presence of the elementary copper selfshaking 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 ingredients content (Table 1).
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 electropotential.
CNA Harmlessness method for treating ... CNB Smelting production method and device of ... CNA Method for comprehensively efficiently processing lead anode slime by ...
Mar 29, 2011· Anode slime is an important material of recycling precious metals. Up to now, treating the arsenic and antimonyrich 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. Therefore, vacuum .
Mar 02, 2010· Method and device for treating anode slime . United States Patent . Abstract: The method and furnace according to the invention enable a continuous processing of anode slime and are particularly suited to be connected to a process where anode slime is treated by hydrometallurgic methods after roasting. In the method according to the ...
Anode slime is an important material of recycling precious metals. Up to now, treating the arsenic and antimonyrich 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 pretreated with pressure acid leaching method and the leaching behavior of copper,tellurium and selenium in copper anode slime was 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.
A vacuum evaporation technology for treating antimonyrich anode slime was developed in this work. Experiments were carried out at temperatures from 873 K to 1073 K and residual gas pressures from ...
For byproduct recovery, for example, the anode slime treatment, Metalcess developed a series of miniprocess like anode slime pressure leaching, small capacityoriented TBRC smelting, gold extraction from lead distillation system, etc. Full process of lead firerefining includes several steps to remove Cu, Te, As, Sb, Sn, Ag, Zn, Bi in sequence.
Ultrasoundassisted 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 ...
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.
The quantity of slime produced by the nickel anodes is far greater than from the copper anodes and although a little falls to the bottom of the cells the majority adheres to the anode and has to be scraped off. This is normally done every 100 running hours, both to bring the platinum metals forward and to stop the anodes becoming passive.
Anode slime is the byproduct of copper or lead electrorefining 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 ...
US Material surface treatment method using ... CNA Horizontal movement type continuous electrolytic method and device of ... WOA1 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 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.
Anode slime samples were collected from the bottom of the electrolytic cells during the electrorefining of copper. These samples were sieved through a 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,
The costbenefit analysis as well as the sensitivity analysis for the treatment of 1 t anode slime by the proposed process was also investigated. This study is of great potential to develop an environmentally friendly process to recover Se from anode slime. 2. Materials and methods Materials
Electrorefining Of Copper Process. anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of coppert generally contains cu, ni, se, te, ag, au, platinum group metals pgm, pb, ba, fe, etcwing to the presence of valuable metals.
The invention relates to a craft which synthetic recover the lead anode slime slag charge and uses the lead anode slime slag charge to produce antimony white. It casts the raw coal and the soda (by weight ratio) 100: (512): (515) into the reflecting oven to do reducing smelting at deg. to produce the cruse alloy, it matches bottom lead in the cruse alloy and adds them into the ...
The anodes are cast in open castiron molds, and are of the dimensions given in Fig. 4. They are suspended from the conductors by Cshaped 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.
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 ...
Nov 29, 2007· More precisely, the invention relates to a method and device for treating anode slime obtained from copper electrolysis. In copper electrolysis, the insoluble element of the anodes falls on the bottom of the electrolytic tank as anode slime, from where it is recovered when the anodes are replaced. In addition to copper and nickel, anode slime ...
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 ...
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.
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