Abstract: The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic …
In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO2 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral; the other main minerals were potash …
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.
The vanner and the two industrial machines use thin water films and orbital shear to recover heavy minerals from slime (5- to 100-µm) feeds. ... led to the development of a processing procedure that allowed recovery of up to 53 pct of the chromium values in the laterite as a concentrate containing 22.9 pct Cr (33.4 pct Cr2O3) with a 1.6:1 Cr ...
Based on a brief introduction of properties of metallic nickel, it summarizes the applications of nickel, demand of nickel, resources of nickel, and metallurgical …
Machine translation: This is a machine translation provided by the European Commission's eTranslation service to help you understand this page. ... Nickel extraction from laterite reserves. Owing to its potential for low refining costs and cut-off ore grades, atmospheric heap leaching has been developed as an alternative …
Laterites are generally processed through hydro or pyro-metallurgy and therefore, pre-concentration of nickel before such processes is very important. This …
Following the growing demand for Ni and Co and the dwindling supplies of sulfide nickel ore, attention has turned toward the more efficient exploitation and utilization of laterite ore. Using ammonium chloride acid solution to leach is an effective method. Our research concerned investigations on the leaching mechanism and leaching kinetics of …
The selective reduction–beneficiation of laterite ore to produce high nickel content nickeliferous concentrate and abandon gangue minerals before smelting …
Portland cement is the primary material in the field of construction. Despite its importance, its production remains an energy-consuming and polluting operation. Research on alternatives to Portland cement has become an international concern, and these alternatives include geopolymers. With the evolution of the research on …
The presence of a considerable amount of scandium in lateritic nickel-cobalt ores necessitates the investigation of possible processing alternatives to recover scandium as a byproduct during nickel and cobalt production. Therefore, in this study, rather than interfering with the main nickel-cobalt production circuit, the precipitation-separation …
The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic separation process.
The microwave drying of a Philippine nickel laterite ore was proposed as an alternative drying method to reduce the air pollution before further pyrometallurgical processing.
In this paper, the process of solid-state metalized reduction and magnetic separation was investigated for preparation of nickel–iron concentrate from a low-grade …
Under the action of waste cathode carbon and CaO, ferronickel concentrate was prepared by reduction roasting–magnetic separation for laterite nickel ore. Table 4 provides a chemical analysis of the ferronickel concentrate results under the conditions of 14 wt% spent cathode carbon, 6 wt% CaO, 1250 °C reduction temperature, 75 min …
The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride was used as additive and coal as a reductant. The effects of roasting temperature, roasting duration, reductant dosage, additive dosage, and grinding …
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]. …
1. Introduction. The acid-leaching tailings of laterite nickel ore are a hazardous waste generated by the laterite nickel ore industry [1], [2], [3].As global demand for nickel continues to rise and nickel sulfide resources decrease, the extraction of nickel resources from laterite nickel ores the main development trend of the global nickel …
The nickel laterite in upper layer of the ore deposit, with higher content of iron (Fe) and lower content of silica (SiO 2) and magnesium (Mg) in general, belongs to the limonite type, and usually contains lower nickel of about 1%, but a certain amount of cobalt (Co), while the nickel laterite in lower layer of the ore deposit, with higher content of …
Primary world nickel production in 2020 was 2430.7 kt Ni; 69% (1677.7 kt) of them came from oxidized nickel ores (laterites) and 31% from sulfides. Production-wise, 87.7% of the 1677.7 kt came from pyrometallurgical …
Laterite soil and lateritic soil are closely related, but there are some key differences between them: Maturity: Laterite soil is the more mature form, while lateritic soil is an earlier stage in the process of soil development known as laterization. Laterite soil has undergone more extensive weathering and has a well-developed soil profile ...
This study presents a novel and environmentally friendly method for selectively extracting chromium from laterite residue and yielding iron phosphate …
An alternative laterite nickel ore processing using sulfuric acid as a leaching agent to produce class 1 nickel as a raw material for electric vehicle batteries produces natrojarosite residue as a ...
metals Article Production of Ferronickel Concentrate from Low-Grade Nickel Laterite Ore by Non-Melting Reduction Magnetic Separation Process Guorui Qu 1,2, Shiwei Zhou 2,3, Huiyao Wang 2,3, Bo Li 1,2,3 and Yonggang Wei 1,2,3,* 1 State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science …
The pressure oxidation of low-grade nickel sulfide concentrate with high iron sulfides content generates significant amounts of sulfuric acid that must be neutralized. This acid can be utilized to leach metal values from ores such as nickel laterites. The present study demonstrates the use of a low-grade nickel concentrate generated from Poseidon …
DOI: 10.1016/J.APT.2018.11.024 Corpus ID: 139796880; Utilization of limonitic nickel laterite to produce ferronickel concentrate by the selective reduction-magnetic separation process
The treatment of laterites has been a research hotspot in extractive metallurgy over the past decades. Industrially, the pyrometallurgical treatment of laterites is mostly accomplished with a well-established method, namely, the rotary kiln–electric arc furnace (RKEF) process, which includes three main operations—calcination, …
Approximately 80% of the hydrometallurgical process of low-grade laterite nickel ore is converted into residue. The handling of residues from processing is a significant challenge in this process According to the characterization test, each type of extraction process produces a different type of residue.
Effect of reductant addition on the grade and recovery of nickel and iron with 3% calcium sulphate addition (Li, et al., 2010).Li et al. (2011) studied the reduction of nickel laterite ore while ...
Metals 2020, 10, 423 4 of 17 where η is the nickel or iron recovery, λ is the content of each element in slag, ml is the mass of the ferronickel concentrate, m0 is the mass of the slurry, β is ...
It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al., (1961) and …
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