OPTIMIZATION OF NICKEL EXTRACTION FROM LATERITIC ORE
The dissolution of lateritic nickel ore in hydrochloric acid solution with hydrogen peroxide was investigated As a result of the literature review no study was found on the optimization of the dissolution of lateritic nickel ore for this medium Hence it was aimed to determine optimum leaching condition of lateritic nickel ore by Taguchi method MATERIAL AND METHOD Lateritic nickel ore
Separation of cobalt and nickel from chloride leach
separating cobalt and nickel from weak acid solution 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 Leaching of this reduced ores results in chloride leaching solution of high ferrous iron together with cobalt and nickel In this work solvent extraction and stripping experiments
Paper Chemical Equilibrium Nickel
In this paper investigations on separation of nickel and from nickel in a concentrated hydrochloric acid of nickel laterite ore in nitric acid
Recovery of Ni Co Mn and Mg from nickel laterite
Abstract Many of the impurities present in the hydrochloric acid leaching liquors obtained after the treatment of Ni laterite and serpentine ores can be removed in a preliminary purification step
Derleme HYDROMETALLURGICAL PROCESSING OF NICKEL
of the appropriate hydrometallurgical process for lateritic nickel ore ÖZ to point out the extraction and separation of nickel nickel is possible A hydrochloric acid stripping is necessary to prevent gypsum precipitation and iron poisoning of D2EHPA Cheng 2000
INTERNATINA SIENTII JRNA MAINES TENGIES MATERIAS EB
nitric acid 5 hydrochloric acid 6 acetic citric and oxalic acid 7 8 The aim of this work is to optimize the AL process in sulphuric acid using magnetic stirring with modeling the kinetic of the process at different temperatures 2 Materials and methods Ore L ow grade nickel laterite ore from Ržanovo mining area in R
Extraction and separation of nickel and SpringerLink
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
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 dialkyl ketone to
KINETIC MODELS OF NICKEL LATERITE ORE LEACHING PROCESS
The subject of this study is leaching process of nickel bearing laterite ore from Ržanovo R Macedonia The influence of sulfuric acid concentration 0 5 1 and 3 M H2SO4 on the extracted Ni wt was studied The leaching process intensified by magnetic stirring at different temperatures 298 323 348 and 363 K in the time interval of 120 min was performed
Cobalt extraction Wikipedia
Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores Several methods exist for the separation of cobalt from copper and nickel They depend on the concentration of cobalt and the exact composition of the used ore
EV Predictions Show Strained Metal Supply
nbsp 0183 32 High Pressure Acid Leaching HPAL involves processing ore in a sulfuric acid leach at temperatures up to 270 186 C and pressures up to 600 psi to extract the nickel and cobalt from the iron rich ore The advantage of HPAL is its ability to process low grade nickel laterite ores to recover nickel
Cobalt extraction Wikipedia
Several methods exist for the separation of The hydrometallurgical process for laterite ore can use sulfuric acid or If hydrochloric acid is used then
Study On Sulphuric Acid Pressure Leaching Of A Laterite
The acid consumption is 518 5g acid kg ore The leaching behaviour of the minerals in Yuanjiang laterite ore during pressure acid leaching and the composition of the solid residues were studied using X ray diffraction and scanning electron microscopy X ray energy dispersive spectroscopy
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