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The highest recovery of 97.91% (grade 13.62%) was reported when sulfur was used as an additive during the roasting of a limonite ore with coal and limestone at …
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ABSTRACT In Part II, the correlation between Fe–Ni grain growth and characteristic fusion temperatures of the Na2SO4–laterite mixtures, and phase transformations of the reduced pellets were investigated. For the mechanism of sodium sulphate, Na+ is able to liberate the hosted nickel and iron within lizardite, while SO42– is the sulphur source for the …
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Mineral Processing. Swapan Kumar Haldar, in Mineral Exploration (Second Edition), 2018. 13.2.4.3 In-Stream Analyzer and Process Control. Mineral beneficiation, particularly base and noble metals, is sensitive to optimum use of reagents, recovery of metals, and clean concentrate.High fluctuation of feed grade at flotation cells yields loss of metals to tailing.
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As is well known, the process of direct reduction and magnetic separation is effective route to deal with low-grade saprolite laterite, but generally limited by the reduction of nickel (iron)-bearing minerals and growth of Fe-Ni alloy particles in the reduction process, causing the low recovery of nickel and iron. To improve beneficiation of ...
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future, there is an increasing interest in lateritic nickel ore as an alternative raw material to replace sulfide nickel ore in nickel production [3]. Nickel laterite ore accounts for up to 70% of total nickel resources in the world. Nevertheless, it was difficult for applying the physical beneficiation process in nickel laterite ore [4].
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Table 1-3. Ore Treated to Product Ratios and Material Handled to Product Ratios for U.S. Surface Iron Ore Mines, in Thousand Long Tons, 1988 ..... 1-13 Table 1-4. Beneficiation Methods Commonly Associated With Iron Ores and the Percentage of Ore Treated by Each Method, 1990 ..... 1-15 Table 1-5.
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PDF | The first process that most of the ores or minerals undergo after they leave any mine, is mineral processing or mineral/ ore dressing. ... Ore beneficiation is a separate process that is ...
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1. The most commonly used copper-nickel sulfide ore beneficiation method include flotation, gravity, magnetic separation and mineral processing separation is usually secondary. Copper- nickel sulfide ore flotation, we often use agents and ing agents. The basic principles of becoming nickel-copper concentrate is to determine the flotation …
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To improve beneficiation of nickel and iron from low-grade saprolite laterite with 1.29 wt.%Ni and 16.31 wt.%Fe, co-reduction with limonitic laterite ore and basicity optimization were adopted as ...
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Semantic Scholar extracted view of "Some factors that affect beneficiation of sulphide nickel-copper ores" by V. Kirjavainen et al. ... Process mineralogy of low-grade laterite nickel ore in Indonesia was systematically characterized and the beneficiation process of mineral components such as limonite, ... Has PDF. Author. More Filters. More ...
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The reduction of nickel ore was conducted at a reduction in temperature variations (950°C, 1050°C, 1150°C) with the presents of 10 wt.% additive sodium sulfate …
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3. Commercial chromite ore beneficiation processes Pure chromium is difficult to produce since it is readily contaminated by many other elements. Huge quantity of raw chromite ore is being mined and beneficiated in various chrome ore beneficiation plants throughout the world to cater the customized needs of various ferro alloy plants.
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The rotary kiln-electric furnace process accounts for two-thirds of the global nickel output. The raw laterite nickel ore contains approximately 1–5 wt.% Cr2O3, but its recovery is limited during smelting. Due to the inefficient utilization, the accumulated Cr-containing slags are potential environmental risks. This work provides positive results …
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Request PDF | Some factors that affect beneficiation of sulphide nickel–copper ores | Sulphide Ni–Cu deposits occur typically in mafic and ultramafic igneous rocks and intrusions. The ...
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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 …
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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 ...
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Compared with nickel sulfide ore, nickel laterite ore has the characteristics of low nickel content and complex mineralogy, and most of nickel is present as isomorphism hosting in the lattice of some stable mineral phases (Butt and Cluzel, 2013), such as serpentine and goethite, leading to difficulty in the physical beneficiation of …
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The quality of Indian iron ore resources is generally good with high iron content and high percentage of lumpy ore. More than 85% of the hematite ore reserves are of medium- to high-grade (+62% Fe) and are directly used in blast furnace and in direct-reduced iron (DRI) plants in the form of sized lump ore, agglomerated sinter, and …
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DOI: 10.1134/s1062739123050150 Corpus ID: 268167989; Study on Beneficiation Technology for Rational Utilization of Low-Grade Copper Nickel Symbiotic Ore @article{Gan2023StudyOB, title={Study on Beneficiation Technology for Rational Utilization of Low-Grade Copper Nickel Symbiotic Ore}, author={F. Gan and L. Gao and …
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Abstract. The processing of lateritic nickel ore is quite difficult, since the nickel-bearing minerals are finely disseminated in the ore bodies. Hence the …
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nickel and rare-earths are sought after metals in the battery materials market. Given SA and the regions resources of these minerals, projects are being pursued by government, the IDC and industry. Focus areas – stationery/utility and mobility application: Vanadium redox flow batteries; Nickel Sulphate material for lithium-ion batteries;
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More nickel laterite ores are imported into China because of the depletion of domestic nickel sulfide resources. Consequently, it is of great importance to the Chinese economy to effectively utilize low grade nickel laterite ore [7]. Nickel laterite ores are formed by the weathering of olivine bedrock in tropical to sub-tropical climates [8,9].
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View PDF; Download full issue; View Open Manuscript; Other access options. Search ScienceDirect ... Furthermore, Muir and Johnson (2006) demonstrated that in physical beneficiation using gravity, particle size is the key parameter. ... derived from electric furnace smelting of laterite nickel ore, contains iron, nickel, and cobalt …
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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 …
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Request PDF | Thermal Beneficiation of a Nickel Laterite Ore from the Obi Island of North Maluku, Indonesia Using Corncob Char as Reductant | A nickel laterite ore sample from the Obi Island of ...
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The beneficiation studies of Suresh (1981) illustrate that low-grade chromite ore of 16%–25% Cr 2 O 3 of Sitampundi area of India, cannot be upgraded by using conventional physical beneficiation techniques like gravity and flotation, due to the intimate association of iron in the lattice of chromite particle. However, they have demonstrated ...
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View PDF; Download full issue; Search ScienceDirect. Minerals Engineering. Volume 24, Issue 5, April 2011, Pages 375-380. ... in practice for the recovery of chromite values from various types of ores and critical issues related to chromite ore beneficiation. The comprehensive condensation of pertinent facts is intended to provide a single ...
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The processing of nickel laterite ore to produce ferronickel is energy intensive, especially when low nickel content ores are processed. The selective reduction–beneficiation of laterite ore to ...
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Improved beneficiation of nickel and iron from a low-grade saprolite laterite by addition of limonitic laterite ore and CaCO3 ... feasibility of a coupled process to prepare ferronickel and cementitious materials by the direct reduction of laterite nickel ore and gangue calcination is discussed under varying thermodynamic conditions and the ...
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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 …
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