Process mineralogy of low-grade laterite nickel ore in Indonesia was systematically characterized and the beneficiation process of mineral components such as limonite, serpentine and chromite was studied on the basis of process mineralogy. The results show that the low-grade laterite nickel ore is a typical weathering sedimentary metamorphic …
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, …
In this paper, the reduction roasting-magnetic separation process is used to study the method of preparing ferronickel concentrates from low-grade laterite nickel ore under the action of composite ...
With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or technology, high-grade nickel ores are being exhausted gradually in the world. This review outlines metallurgical processes for nickel production from various nickel sulfide ores resources, particularly …
Abstract. The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron …
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 …
Nickel, a valued metal, mainly exists as nickel oxide in laterite nickel ore. Furthermore, a large part of the laterite nickel ore is low-grade saprolitic ore. In this paper, a research on preparing … Expand. 25. PDF. ... (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride was … Expand. 9 [PDF] …
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 …
the subsequent magnetic separation process because if they are. ... and magnetic separation of nickel laterite ore in the presence of three types of additive were examined. Nickel laterite ore ...
The current process approach for enriching ferronickel from laterite nickel ore is a pyrometallurgical process, ... The fine ground samples were then subjected to a magnetic separation process to extract ferronickel concentrates for chemical analysis.
The enrichment of Ni from a low-grade saprolitic laterite ore, which has been pre-treated by high pressure grinding roller (HPGR) to be 74% passing 0.074 mm …
Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed using hydrogen and carbon monoxide as reductants at different temperatures (700–1000°C). Magnetic separation of the reduced products was conducted using a SLon-100 cycle …
In anticipation of future demands, a comprehensive understanding of the chemical and mineralogical characteristics of nickel-bearing minerals is a prerequisite to devising effective nickel beneficiation methods. Of particular importance are markers in the mineralogy of the flotation concentrate that inform beneficiation strategies to improve …
In this paper, a research on preparing ferro-nickel alloy from low-grade saprolitic laterite nickel ore using metallized reduction-magnetic separation was studied. In the research, the carbothermic reductions of …
The magnetic concentrates were applied to further improve the efficiency of smelting process based on DRMS-RKEF process at laboratory scale, which were produced from nickel laterite A by reduction at 1250 °C for 80 min with low-nickel concentrates of 20% (72.43% Fe, 4.65% Ni), composite additives of 5% and C/Fe of 2 …
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 …
An effective process of selective reduction roasting-wet magnetic separation was studied to manufacture high nickel concentrate from tropical low grade nickel laterite ore obtained from Indonesia ...
DOI: 10.1016/j.mineng.2023.108194 Corpus ID: 259620999; Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting-magnetic separation using spent cathode carbon
The nickel laterite ore was dried at 120 °C for 2 h in an oven and ground to passing 0.074 mm. The ground nickel laterite was mixed to homogeneously with pulverized coke. ... Zheng GL (2012) Upgrading low nickel content laterite ores using selective reduction followed by magnetic separation. Int J Miner Process …
In this research, efficient iron enrichment was innovatively proposed through "mineral phase transformation - magnetic separation" for the acid-leaching tailings of laterite nickel ore. The process utilizes carbon monoxide (CO) as the reducing agent, …
Published: 18 June 2020. Efficient Synchronous Extraction of Nickel, Copper, and Cobalt from Low–Nickel Matte by Sulfation Roasting‒Water Leaching Process. Qiangchao Sun, Hongwei Cheng,...
In Thanh Hoa province, large chromite ore deposits were discovered. These types of ores also contain significant quantity of nickel metal, with total nickel reserves estimated to be over three million tones. According to the practices of mining and beneficiation of these chromite ores, nickel is discarded in the waste dumps as a non …
Nickel, a valued metal, mainly exists as nickel oxide in laterite nickel ore. Furthermore, a large part of the laterite nickel ore is low-grade saprolitic ore. In this paper, a research on preparing ferro-nickel alloy from low-grade saprolitic laterite nickel ore using metallized reduction-magnetic separation was studied. In the research, the carbothermic …
The success of the sulfation-roasting-leaching process depends on iron behavior. Due to its higher amount, it is sulfated before nickel. However, the stability of iron sulfates is lower than the nickel sulfate and during the decomposition of iron sulfate, the sulfur xide (SO 3) is liberated and reacts with nickel to form nickel sulfate.This …
Selective reduction and magnetic separation of laterite ore. According to previous research, nickeliferous concentrates with nickel content of 5.1% and a nickel recovery of 98.8% could be produced from LN laterite ore by selective reduction and magnetic separation process when the reduction was conducted at 1250 °C for 60 …
Keywords: laterites; limonite; nickel; reduction roasting; magnetic separation 1. Introduction Nickel metal is primarily employed in high nickel alloys and superalloys. Nickel utilization is increasing at a rate of about 4% per year [1]. Nickel is used in stainless steels, non-ferrous alloys and plating applications.
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 ...
Nickel ores mainly include copper-nickel sulfide ore and nickel oxide ore (laterite nickel ore). The most important is the nickel ore flotation process, magnetic separation and gravity separation are usually auxiliary beneficiation methods.. We can customize nickel ore beneficiation process and equipment to achieve comprehensive utilization of …
The rarity of sulfide nickel ores has demanded the utilization of nickel extraction processes from alternative sources, namely, laterite nickel. One of the nickel ore processing alternative methods which have less energy consumption is carbothermic reduction. This study aimed to investigate the proper mass composition of limestone flux …
Nickel, a valued metal, mainly exists as nickel oxide in laterite nickel ore. Furthermore, a large part of the laterite nickel ore is low-grade saprolitic ore. In this paper, a research on preparing … Expand. 24. PDF. ... (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride was … Expand. 9 [PDF] …
DOI: 10.1016/J.MINPRO.2012.01.003 Corpus ID: 97937238; Upgrading low nickel content laterite ores using selective reduction followed by magnetic separation @article{Zhu2012UpgradingLN, title={Upgrading low nickel content laterite ores using selective reduction followed by magnetic separation}, author={De‐qing Zhu and Yu Cui …
Processing options for various types of nickel ore and their products (Adapted from Crundwell et al., 2011). ... followed by magnetic separation on fine (> 45 µm) ...
DOI: 10.1016/s1003-6326(20)65256-6 Corpus ID: 216163739; Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation @article{Shuai2020EfficientEO, title={Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation}, author={Yuan Shuai and …
An effective strategy to achieve separation and recovery of iron and nickel from low-grade laterite ore via microwave carbothermic reduction roasting is reported. In …
