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from this process are nickel-iron scrap, steel scrap, polypropylene, and nickel metal. The second process alternative is to produce ferroalloys utilizing pyrometallurgical processes. The battery electrodes and powders are smelted in an electric air furnace to produce a crude ferronickel product and a slag rich in the hydride alloy elements.
Implementation of this use requires a modification of the cooling process of slag from the instantaneous quenching and granulation over a jet of water to a slow rate slag quenching in ambient ...
Nickel Recovery Nickel/Cobalt rich filtercake material is recovered by steam drying. The resulting concentrate can then be re-used or recycled. We also recover other valuable metals such as copper, tin and cobalt. Processes used include precipitation, steam stripping, sludging and steam drying.
streams of some process effluents to prevent a build-up 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 .
Jun 18, 2020· Considering that the low recovery efficiency and the massive loss of valuable metals by the traditional pyrometallurgical process smelting low‒nickel matte. Therefore, this paper focuses on ...
Nickel processing - Nickel processing - Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel ...
During the pyrometallurgical treatment of the nickel-bearing laterite in the plant of G.M.M. S.A. LARCO, slag is produced after treatment in electric-arc furnace (EAF) that contains 0.10 to 0.20 % 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.
The method includes the supply of liquid slag containing chromium and/or Nickel, in a liquid metal bath and the slag recovery in two stages. In the first stage of recovery is carried out by introducing carbon in the metal bath to reduce the content of oxides of chromium and/or Nickel in the slag .
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 electro-winning process. Nickel crystals recovery .
Utilization of nickel slag using selective reduction, respectively, while the recovery of iron is only 4217% The S and P contents are not reduced obviously and further research may be needed to examine the behaviors of S and P in the process Key words: nickel slag; selective reduction; magnetic separation 1 Introduction Nickel can be ...
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 .
Nickel production from high-magnesium nickel oxide ores follows a pyrometallurgical process including prereduction, smelting in a blast furnace, and nickel enrichment refining. 71 During the smelting stage, besides the nickel alloy, nickel slag is also generated. The nickel slag is recycled back into the process until its nickel concentration ...
It is estimated that 6–16 tons of nickel slag in flash smelting process are generated per ton of nickel produced. 3,4) Taking Jinchuan Group Co. Ltd (Yinchuan, China) as an example, ~160 tons of granulated nickel slag are output annually and more than 33 million tons of the nickel 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 .
Metal values may be recovered from metal bearing sources in a hydrometallurgical process in which a metal bearing source such as an ore and the like is reduced with a reductive roast only or with the presence of at least one additive at temperatures ranging from about 500° to about 900° C. Thereafter the reduced source is subjected to a leach in the presence of a basic leaching agent to ...
trate with an overall pentlandite recovery of about 89% could be produced, while restricting pyrrhotite recovery to less than 12.5% (Figure 5). Problems due to process water The difRculty of selective depression of pyrrhotite at Canadian plants was found to be due to the process water containing heavy metal ions such as Ni2#,Cu2#,Ag2#, which
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
Jul 18, 2013· Milled slag as flotation feed showed recovery-limiting 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.
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 under-standing of how to optimize the process for maximum recovery.
Process flowsheet development for beneficiation of nickel ore. Tailings Re-Processing Line . Introduction: Xinhai tailings re-processing line, with the thought of protecting ecosystem and fully using resources, provide a re-processing for those valuable metal or non-metal tailings.
and again in 2003, in order to identify recovery problems at the slag plant. ANDREWS, L. Factors affecting nickel recovery from slags.produced 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 ...
Tin in the slag as oxide was recovered by reduction using carbon or hydrogen gas at 650-700 degrees C. Different valuable chloride salts were also obtained in good quality. Further research is recommended on the thermodynamics of nickel-copper recovery, yttrium and europium recovery, and process .
Nickel-copper converter slag 'A'- 100 kVA and 200 kVA. Using converter slag from a nickel-copper plant, tests were carried out, in 1990, on a 100 kVA furnace (operated at 30 kW) and on a 200 kVA furnace (operated at 85 kW), at low additions of reductant (in order to minimize the reduction of iron).
Apr 17, 2018· Process the stainless steel slag to recover the Ferronickel alloy. If any inquiry, please contact us at: Email: sales1@frjig Whatsapp: +8618037167566 Web...
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