·Semantic Scholar extracted view of "Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting magnetic separation using spent cathode carbon" by S Hui et al Skip to search form Skip to main content Skip to account menu Semantic Scholar s Logo Search 222 345 627 papers from all fields of science
·Laterite geology presents unique challenges for geotechnical engineers which increase when these materials are subjected to acid leaching In the design of nickel laterite heap leach facilities two byproduct materials are of key importance to the geotechnical engineer the leached ore and the plant
exploiting and utilization of nickel laterite ores There have been practical applications by sulfuric acid pressure leaching treating laterite ores such as Moa in Cuba and Ramu laterite ores in Papua New Guinea Taking Ramu laterite ores as an example the main components are Ni of % Co of % and Fe of 45% Under the conditions
·This is mainly because of their complex and variable mineralogy and the lack of definite nickel bearing phases to concentrate Anand Rao et al 1995;Quast et al 2015a Quast et al 2015b Quast
·Abstract The treatment of laterite ore by pressure leaching using nitric acid medium was studied The nitric acid pressure leaching of nickel laterite was feasible based on series experiments for valuable components of initial concentration of nitric acid leaching temperature leaching duration and liquid to solid ratio of the process
·Hence developing a novel process with low energy consumption becomes a hot topic in the production of ferronickel with laterite A few researchers [5 12 13] have attempted to produce higher grade ferronickel concentrate by magnetic separation after pre reduction in a rotary kiln Nevertheless to avoid forming a ring against the wall of the
High pressure acid leaching HPAL is being used for the recovery of nickel from nickel laterite ores and increasingly atmospheric leaching is also being considered As mentioned above major reserves of nickel are contained in laterite ores which have traditionally been treated by pyrometallurgical methods
·This value is close to the magnetic susceptibility of several ores containing goethite which is reported around × 10 3 to × 10 3 emu/g
·grade concentrate from low grade laterite ore which is a refractory nickel resources and hard to benefi ciate by traditional processes During the roasting the reduction of iron minerals was
·All laterite smelters in Russia have now closed due to the low grade of the ore The 2 smelters visited produced 213kt Ni in 2019 99% of the total Russia nickel smelter production pipelines washing machines etc [10 11] However starting on January 1 2020 the fate of the RKEF plants that were dependent on the laterite feed from
·A kind of leaching residue generated during high pressure acid leaching of laterite nickel ore is creatively prepared as blast furnace charge for ironmaking Results show that the briquettes with uniform shape compressive strength higher than N/pellet and cracking temperature over 400 °C can be obtained by the non binder briquetting with water content of
·The mineralogical properties of the raw laterite ore reduced ore and magnetic concentrate were characterised using ICP TG DSC N2 adsorption X ray diffraction and optical microscopy
·Utilization of limonitic nickel laterite to produce ferronickel concentrate by the selective reduction magnetic separation process Author links open overlay panel Deqing Zhu Liaoting Pan Zhengqi Guo Jian Pan Fang Zhang Laterite ores can be divided into three categories limonite oxide nontronite clay and saprolite silicate [11
·ZHU De qing PAN Jian LI Qi hou ZHENG Guo lin LI Zi yun A process for producing high nickel concentrate from low grade nickel laterite China patent CN 102242252 [P] 2011 in Chinese Google Scholar CHUN Tie jun Study on high efficient enrichment technology and mechanism of low grade and super fine hematite [D] Changsha Central South
For different briquette materials you should choose roller by your condition Generally the 65Mn roller is used in small briquette machine with soft material such as coal charcoal carbon etc And the 9Cr2Mo roller is usually used in the big briquette machine with materials such as mineral iron powder laterite etc
·Abstract Nickel is mostly extracted from sulfide ores however laterite ores account for over 60 pct of all nickel resources in the world and despite its predominance there is no well established process to extract nickel from such ores Nickel in laterites is hosted in many different compounds such as oxides hydroxides and silicates minerals The sulfation roasting
·Attempts to beneficiate nickel laterite ores especially low grade limonitic ores Ni < 1% have largely failed due to the dispersion of nickel values between a variety of host minerals
·The magnetic separation tailings of saprolite laterite ore containing magnesium processed by roasting and magnetic separation are used as raw materials and the product of magnesium oxide was obtained by the process of sulfuric acid leaching removing iron precipitating magnesium and roasting The effects of sulfuric acid concentration leaching
·Nickel laterite ore with wt% coal 12 wt% calcium sulphate reduced at 1200 °C for 30 min a ferronickel concentrate of Ni wt% and Fe wt% was obtained at a nickel and iron
·Abstract The treatment of laterite ore by pressure leaching using nitric acid medium was studied The nitric acid pressure leaching of nickel laterite was feasible based on series experiments for valuable components of initial concentration of nitric acid leaching temperature leaching duration and liquid to solid ratio of the process
·Laterite residues are good iron bearing resources to decrease the external dependence on iron ores in China At present laterite residues are deposited in the land or transported to deep sea which causes serious resource waste and environmental order to utilize laterite residues efficiently and ease shortages of iron ores non molten
Manufacturer of Laterite Stone Cutting Machine offered by Stone Age Industries Rajkot Gujarat
·Feature papers represent the most advanced research with significant potential for high impact in the field A Feature Paper should be a substantial original Article that involves several techniques or approaches provides an outlook for future research directions and describes possible research applications
·Because the nickel in the copper concentrate will be lost in the smelting process the copper in the nickel concentrate can be recovered more completely Flotation Machine for Nickel Processing The Processing of Copper Nickel ore has the following 5 basic processes
