nickel laterite ore hydrochloric acid separation

• nickel chemistry extraction from ore - perkinspreschool.com

  Oct 20, 2017· Extraction and separation of nickel and cobalt from saprolite laterite ore by microwave-assisted hydrothermal leaching and chemical deposition. Yan Zhao1) ... OPTIMIZATION OF NICKEL EXTRACTION FROM LATERITIC ORE IN HYDROCHLORIC for Dissolution of Magnesite with H2SO4 Solutions, Ind. J. of Chem.

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• OPTIMIZATION OF NICKEL EXTRACTION FROM LATERITIC ORE IN ...

  Taguchi optimization method was used to determine optimum conditions for the extraction of nickel from lateritic ore in hydrochloric acid solution with hydrogen peroxide. Leaching time, stirring speed, temperature, hydrochloric acid concentration and hydrogen peroxide concentration were …

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• ENGINEERING ASPECTS OF THE SELECTIVE ACID LEACHING …

  problems is that for most nickel laterite ore bodies, the extent to which the nickel can be concentrated by ... hydrochloric acid (Harris et al 2006) and nitric acid (McCarthy and Brock 2011) are also currently being ... The new process is streamlined in that the separation of nickel from cobalt and

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• Recovery of Ni, Co, Mn, and Mg from nickel laterite ores ...

  Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching Author links open overlay panel Long Meng a b c Jingkui Qu a c Qiang Guo a c Keqiang Xie b Peiyu Zhang a c Linxin Han a c Guozhi Zhang a c Tao Qi a c

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• OPTIMIZATION OF NICKEL EXTRACTION FROM LATERITIC …

  extraction of nickel from lateritic ore in hydrochloric acid solution with hydrogen peroxide. Leaching time, stirring speed, temperature, hydrochloric acid concentration and hydrogen peroxide concentration were chosen as parameters. The optimum conditions for dissolution were found as leaching time of 240

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• Separation of iron from value metals in leaching of ...

  Dec 23, 2014· The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a …

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• Separation of cobalt and nickel from chloride leach ...

  Separation of iron and nickel from a spent FeCl 3 etching solution by solvent extraction. ... During the treatment of nickel laterite ore to produce ferronickel alloy, the ferric iron in the ores was reduced to ferrous iron by employing hydrogen gas. ... Solvent extraction of Ni(II) from strong hydrochloric acid solution by Alamine336.

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• Selective nickel recovery from iron-rich solutions ...

  In the global nickel production, about 40% of the resources are provided from lateritic type ore with about 54% of the world’s nickel reserves being in the form of lateritic nickel deposits. [1 Huang, Q.; Lv, X. (2011) Phases transformation of nickel lateritic ore during dehydration. Journal of Mining and Metallurg, 47: 45 – 51.

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• Procedure for extraction of nickel and cobalt out of ...

  These resins, as a rule, can be regenerated acid solution (sulfuric or hydrochloric acid), reaching thus high efficiency. ... In the flow charts of processing of Nickel laterite ore acceptable either of these two options. To use the resin in the solution is a necessary preliminary stage separation of solid and liquid phases. ... carry out the ...

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• Atmospheric pressure leaching application for the recovery ...

  To decrease acid consumption rates, gangue minerals may be rejected by physical separation techniques. Chemical treatment may also be applied to enhance the amenability of valuable minerals to acid leaching. This study focused on atmospheric pressure acid leaching of a low-grade nickel laterite ore and copper tailings. The

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• Nickel | Water Solutions

  Nickel Mining “Recovery of nickel from bioleach solution” by Duyvesteyn, et al., Patent US 5,626,648, BHP Minerals International Inc. (Reno, NV) “Method for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore” by Duyvesteyn, et al., Patent US 5,571,308, BHP Minerals International Inc. (Reno, NV) Cobalt/Nickel Separation

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• Atmospheric pressure leaching of nickel from a low-grade ...

  The pre-concentration of nickel was attempted by magnetic separation, but was unsuccessful. ... nickel recovery, laterite ore, leaching, calcination, kinetics 1. Introduction ... found sulfuric acid to be more efficient than hydrochloric and nitric acid nickel leaching from serpentine ores. In general, High Pressure Acid Leach (HPAL) is known ...

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• Acid leaching of nickel from dunite rock

  the oxide or lateritic ores (0.5 = 4.0% nickel) - ... Pawel 31 proposed hydrochloric acid leaching of an oxidized low grade nickel ore followed by neutralization of the nickel/magnesium/iron chloride liquor with magnesium oxide. After sel iron and nickel as hydroxides

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• (PDF) Cobalt and Nickel Separation in Nitric Acid Solution ...

  Cobalt and Nickel Separation in Nitric Acid Solution by Solvent Extraction Using Cyanex 272 and Versatic 10 ... acid, investigations on separation of nickel and cobalt from pregnant leach solution ...

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• Mechanism of sodium chloride in promoting reduction of ...

  Jul 04, 2016· The mechanism of sodium chloride in promoting reduction of high-magnesium low-nickel oxide ore in the absence of moisture is investigated. ... Whittington B. I. & Muir D. Pressure acid leaching of nickel laterites: a ... Zhou S. W. et al. Chloridization and reduction roasting of high-magnesium low-nickel oxide ore followed by ...

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• CA2859035A1 - Separation of iron from value metals in ...

  The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a dialkyl ketone, to obtain a …

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• Evaluation of a versatic 10 Acid/Nicksyn™ Synergistic ...

  ore is calcined reductively to reduce the ferric (associated with goethite) prior to ammoniacal leaching of the nickel and ... The most recent major nickel laterite project, namely Vale Inco’s Goro nickel project, was commissioned during ... The Goro process was designed to use hydrochloric acid stripping in four stripping stages, each with 5 ...

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• mineral processing process of nickel - whitehillstree.com

  A hydrochloric acid process for nickeliferous laterites. Contact US processing of low grade nickel bearing laterites Core. the refractory nickel minerals: garnierite and nontronite, by the chlorine, HCl or NaCl . The next steps are flotation, magnetic separation or ammonia leaching of. Contact US Processing of Nickel Laterite Ores on the Rise

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• Cobalt and Nickel Separation in Nitric Acid Solution by ...

  Recent trend in extraction of nickel and cobalt from laterite ore through hydrometallurgical route is by using leaching agents that can be effectively regenerated, such as hydrochloric and nitric acid.

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• Cobalt extraction - Wikipedia

  Nickel-cobalt lateritic ores can be treated by either hydrometallurgical processes or pyrometallurgical processes, ... The hydrometallurgical process for laterite ore can use sulfuric acid or ammonia leach solutions. ... If hydrochloric acid is used then cobalt may …

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• Cobalt extraction - Wikipedia

  Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. ... The hydrometallurgical process for laterite ore can use sulfuric acid or ammonia leach solutions. Recovery from arsenide ores ... If hydrochloric acid is used then cobalt may be extracted using alamine 336 in meta-xylene.

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• Minerals Engineering International Online - Commodities ...

  S. Mondal, Vikas Kumar, J.N. Sharma, R.C. Hubli, A.K. Suri, Evaluation of n-octyl(phenyl)phosphinic acid (OPPA) as an extractant for separation of cobalt(II) and nickel(II) from sulphate solutions, Separation and Purification Technology, Vol. 89, 2012

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• Extraction and separation of nickel and cobalt from ...

  Extraction and separation of nickel and cobalt from saprolite laterite ore were studied by using a method of microwave-assisted hydrothermal leaching and chemical deposition. The effects of leaching temperature and time on the extraction efficiencies of Ni2+ and Co2+ were investigated in detail under microwave conditions.

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• Solvent Extraction of Nickel and Cobalt from Ammonia ...

  acid regeneration in atmospheric leaching processes using hydrochloric and nitric acids [3]-[5]. Separation of cobalt and nickel in pregnant leach solution, either in ammonia-based or sulfuric acid solution is a difficult task due to relatively similar behaviour of these metals. Various methods for the separation of nickel

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• NICKEL EXTRACTION FROM GÖRDES LATERITES BY …

  lateritic ores. In this study, nickel extraction from Manisa-Gördes region laterites by hydrochloric acid leaching is aimed. The mineralogical analysis of sample showed that hematite, goethite, dolomite, quartz and smectite are the main minerals in the ore. Attrition scrubbing, cycloning and magnetic separation with permroll were

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• gravity separation of nickel laterite ore

  nickel extraction from gördes laterites by hydrochloric acid METU In this study, nickel extraction from ManisaGördes region laterites by hydrochloric acid leaching is aimed. The mineralogical analysis of sample showed that hematite, goethite, dolomite, quartz and smectite are the main minerals in the ore.

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• Extraction and separation of nickel and cobalt from ...

  Extraction and separation of nickel and cobalt from saprolite laterite ore were studied by using a method of microwave-assisted hydrothermal leaching and chemical deposition. The effects of leaching temperature and time on the extraction efficiencies of Ni 2+ and Co 2+ were investigated in detail under microwave conditions.

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• separation nickel separated - whitehillstree.com

  Separation of Iron, Nickel, and Cobalt from Sulphated Leach Liquor . Iron is generally separated from sulphate leach liquor of Ni and Co either . develop a simple process for separating iron and cobalt from nickel to extract. Contact US Separation of Iron from Cobalt or Nickel. Hydrochloric. Acid Separation.

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• SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF ...

  Jun 13, 2013· The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a …

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• Atmospheric acid leaching of nickel laterites ... - DeepDyve

  The first section examines the hydrochloric acid leaching of nickel laterites, focusing on the reactivity of limonitic and serpentine ores. ... Atmospheric acid leaching of nickel laterites review. Part II. Chloride and bio-technologies McDonald, ... Bioleaching of nickel laterite ore using halotolerant Aspergillus foetidus under saline conditions.

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