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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.
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 .
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.
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 .
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
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 ...
The method of removal of chromium and/or Nickel from a liquid slag or mixtures thereof, including the supply of liquid slag containing chromium and/or Nickel, in a liquid metal bath, in particular ironcontaining bath, and recovering the liquid slag in two stages, with the first stage of recovery is carried out by introducing carbon or media ...
With the increased requests for more sustainable extraction processes feedstocks with low metal content are becoming more attractive. In this research, an additional refining step is investigated in order to recover valuable metals from slag generated during nickel extraction process, particularly copper, nickel, and cobalt.
A New Process for CoNi Separation – ALTA 2010 2 ABSTRACT A new process has been developed jointly by CSIRO and CESL, for separating cobalt from nickel in an impure leach solution. The process uses synergistic solvent extraction (SSX) with commercially available reagents, but in a novel and efficient manner using kinetic factors.
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.
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
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 .
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.
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.
The low recovery amounts at low temperature is due to the low reactivity of slag, while as the temperature increases, the nonmatching of zinc and copper recovery is due to partial hydrolysis of slag till 35°C but increasing the temperature to 70°C seriously decreases zinc recovery due to possible polymerization and hydrolysis.
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.
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 .
Sep 29, 2017· A generalized flow sheet of the recovery of copper, cobalt, and nickel can be found below, Figure 1. Fig. 1: Generalized Flow Sheet of Copper/Cobalt/Nickel Recovery (Fisher, 2011) When designing processes for cobalt recovery, it is important to analyze and overcome some of the technical challenges that lie ead.
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. Taking into account the great quantity of slag produced per year, the recovery of nickel from the EAF slag will add benefits to the entire process.
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.
Jigging recovery of chromium slag process of ferrochrome jigging process. Chromite is divided into high carbon ferrochrome including charging FeCr with different carbon content (C≦10%), medium carbon ferrochrome (C≦%), low carbon ferrochrome (C≦%), micro carbon ferrochromium (C≦%) etc. Commonly used silicon chromium alloys, ferrochrome nitride etc.
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.
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 .
The Sherritt process is a hydrometallurgical process named for Sherritt Gordon Mines Ltd. (now Sherritt International) of Sherridon and Lynn Lake Manitoba Canada, based on the older Forward process developed by Dr. Frank Forward for the recovery of copper and nickel from those same mines.
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