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nickel slag recovery process. HFC Refrigerants (55) HST Hydraulic Cone CrusherHST series hydraulic cone crusher is combined with technology such as machinery, hydraulic pressure, electricity, automation, intelligent control, etc., representing the most advanced crusher technology in the world. It .
As the slag is channeled out of the furnace, water is poured over it. This rapid cooling, often from a temperature of around 2,600 °F (1,430 °C), is the start of the granulating process. This process causes several chemical reactions to take place within the slag, and gives the material its .
OUTOTEC SMELTING SOLUTIONS FOR THE PGM INDUSTRY L. Aspola Outotec R. Matusewicz Outotec K. Haavanlammi Outotec ... As in any extraction process, recovery of the metals is crucial. Fortunately there is little tendency for the ... Figure 4Nickel smelting slag target chemistry
For those working in the nickel waste recovery industry, there is an understanding of just how difficult and costly the process can be. The treatment process that allows nickel to be recovered from waste materials includes filtration and then a drying process, before anything can be done with it at all.
USA US05/931,804 USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords set forth process source nickel ore Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Outotec Slag Cleaning Slag cleaning at copper and nickel smelters is typically done using an electric furnace process. The design of Outotec slag cleaning furnaces is based on our extensive experience with different slag compositions and understanding of how to optimize the process for maximum recovery.
nickel sulfide ores often contain other metals such as copper and precious metals, and consideration should be given to further processing for their recovery. Slag can be used as construction material after nickel recovery, as appropriate (, re turn of converter slag to .
Meanwhile, an economically viable extraction process was proposed to preliminarily utilize the nickel slag based on textural and mineralogical characteristics of the slag, and the magnetic concentrate, assaying about 62% iron grade at over 75% recovery rate, was obtained through the recommended method. View FullText
During the pyrometallurgical treatment of the nickelbearing laterite in the plant of LARCO, slag is produced after treatment in electricarc furnace (EAF) that contains to % Ni.
Mintek has been working on the recovery of cobalt, and the associated valuable metals, from slags, since 1988, using DCarc furnace technology to effect selective carbothermic reduction of the oxides of cobalt, nickel, copper, (and zinc, where present), while retaining the maximum possible quantity of iron as oxide in the slag.
Milled slag as flotation feed showed recoverylimiting features such as free matte with oxidised surfaces and unliberated matte inclusions in the slag. The biggest nickel losses, assuming no tapping problems, are in the glass phase solid solution. Only around 40% of nickel would be recovered from the slag, even under ideal conditions.
The ability to fire assay a substance relies on a number of facts. First of all, the samples that contain gold and silver should be solubility in molten metallic lead and that gold and silver are insolubility in slag. Fire assay also relies on the difference in specific gravity between the two liquids, the molten lead and the slag.
method. In addition to the recovery of valuable metals, the slag product of the process, known as Plasmarok®, can be sold for use as an aggregate, owing to its inertness, low leachability and engineering properties. The exhaust gases pass into a secondary combustion chamber to .
process by significantly reducing nickel emissions and notably improving the working hygiene of operators. This new technology reduces operating costs and enables fully automated process and oxygen recovery from the electrowinning process. Nickel crystals recovery .
Abstract. Nickel slag can be recycled as one of the excellent secondary sources due to valuable iron resource. Slag viscosity during iron recovery from nickel slag by aluminum dross was studied from 1773 to 1873 K, and the viscosity evolution in different periods was systemically discussed.
and again in 2003, in order to identify recovery problems at the slag plant. ANDREWS, L. Factors affecting nickel recovery from during platinum smelting VII International Conference on Molten Slags Fluxes and Salts, The South African Institute of Mining and Metallurgy, 2004. Factors affecting nickel recovery from slags produced ...
streams of some process effluents to prevent a buildup of various impurities. Solid wastes from nickel sulfide ores often contain other metals such as copper, and precious metals, and consideration should be given to further processing for their recovery. Slag can be used as construction material after nickel recovery .
attention in the utilization of nickel slag. This study involves the selective recovery of nonferrous metals (nickel and copper) versus iron, from nickel slag by selective reduction−magnetic separation process, with an aim to make highgrade nickel and copper concentrate for producing special steel,
In order to utilize slag discarded by nickel plants, the selective recovery of nickel and copper versus iron was investigated by selective reduction, which was achieved by controlling the reduction parameters and magnetic separation process on bench scale.
recovery of PGMs and valuable base metals is high, and the recovery of iron to the alloy is still reasonably low. This process is also effective at removing chromium (in this context, a deleterious contaminant) by keeping it dissolved in the slag, and away from the alloy product. Figure 1
Slag/dross and leaching residue are produced from the process of metal extraction. The commonlyseen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing redmud waste.
A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the sulfidic flotation concentrate in an acid solution, and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach.
Described here is a process for recovering chromium and other metals from superalloy scrap. Laboratoryscale experiments were conducted to test a complex flowsheet utilizing a wide range of extractive metallurgical operations.
Slag/dross and leaching residue are produced from the process of metal extraction. The commonlyseen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing redmud waste.
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