Matte (metallurgy)
Matte is a term used in the field of pyrometallurgy given to the molten metal sulfide phases typically formed during smelting of copper, nickel, and other base metals. [1] Typically, a matte is the phase in which the principal metal being extracted is recovered prior to a Matte converting by P-S Converter is the metallurgical process in which copper matte or low-grade nickel matte is generated through matte smelting in Matte Converting by P-S Converter SpringerLink
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Matte grade (Ni+Cu+Co, wt%) as a function of iron in
Nickel matte converting using calcium ferrite slag at the commercial scale has been successfully applied by Stillwater Mining Company (SMC) in batch Top Blown Rotary Converters (TBRC), producing...The slag solubilities for copper reported by Font et al. at 1573 K (1300 °C) in MgO saturation at low iron concentrations of nickel matte seem to be about half of Precious Metal Distributions in Direct Nickel Matte Smelting with
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Matte Smelting, Refining, Alloying Britannica
Matte, crude mixture of molten sulfides formed as an intermediate product of the smelting of sulfide ores of metals, especially copper, nickel, and lead. Instead of being smelted When low-grade nickel matte is blown into a converter to produce high-grade nickel matte, a large amount of slag is generated, which contains many valuable elements, such as Ni, Recovery of Fe, Ni, Co, and Cu from Nickel Converter Slag through
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Precious Metal Distributions in Direct Nickel Matte Smelting with
To compare more deeply the EF matte quality produced with different reductants and addition of scrap, the distribution coefficients of cobalt, copper and Nickel is recovered as metal, either as powder by hydrogen reduction, or as cathode by electrowinning, or as hydrated nickel sulphate by crystallization. Copper is recovered as Nickel Copper Matte with PGMs Technology
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A Thermodynamic Model of Nickel Smelting and Direct High
MOST nickel-sulfide minerals are inevitably associated new nickel pyrometallurgical process, Outokumpu direct high-grade nickel matte smelting, also termed the Outo- with This study aims to understand the effects of matte grade, SO 2 partial pressure, and Fe/SiO 2 on the liquidus temperature and copper content in smelting slag and explore the likelihood of recovering copper, Metals Free Full-Text Control of Copper Content in
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Electrochemical Co-Desulfurization-Deoxidation of Low-Grade Nickel
An electrochemical approach is able to convert low-grade nickel-copper matte (LNCM) to copper-, nickel-, and iron-alloys in both molten NaCl-KCl and MgCl 2-NaCl-KCl without sulfur dioxide emissions.Since the LNCM contains the mixture of sulfides and oxides, the electrochemical deoxidation and desulfurization are taking place Introduction. Nickel is one of the metals with extremely high strategic value in the development of national economy. Nickel has attracted continuous attentions owing to its superior performances such as good ductility, corrosion resistance, high-temperature resistance, and high strength, which have been considered as an essential basic material Comprehensive Review on Metallurgical Upgradation Processes of Nickel
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Flash Smelting, Matte Granulation and Flash
Ryan Walton. Kennecott Utah Copper adopted Outokumpu Flash Smelting and Kennecott-Outokumpu Flash Converting in 1995, a process based on granulating high grade copper matte. While nickel mattesSome previous studies have investigated converting of nickel-copper matte containing platinum group metals to predict the matte composition dynamics in an Ausmelt® converter, whereas others have developed a mathematical model of a nickel converter.[12,15,16] Converting of matte in the copper-making process has also been Study of Industrial Copper Matte Converting Using Micrography
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ACID LEACHING PROCESS FOR TREATING HIGH GRADE NICKEL-COPPER
Nickel and copper values are separately recovered from copper-nickel-sulphide matte by means of a multi-stage acid leach process. The matte is treated in a first leaching stage in which the acid to acid-reactive metals molar ratio and leaching time are controlled to selectively extract the bulk of the nickel values while the copper values remain in the Cobalt is a critical, high-value metal used extensively in batteries and other sustainable technologies. To secure its supply in future, it is utmost important to recover cobalt efficiently from industrial wastes and recycled End-of-Life batteries. This study aims at finding ways to improve the reduction of cobalt as well as valuable metals nickel and Batteries Free Full-Text Battery Scrap and Biochar MDPI
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Efficient Synchronous Extraction of Nickel, Copper, and Cobalt
Efficient Synchronous Extraction of Nickel, Copper, and Cobalt from Low-Nickel Matte by Sulfation Roasting‒Water Leaching Process Sci Rep . 2020 Jun 18;10(1):9916. doi: 10.1038/s41598-020-66894-x.Converting in 1995, a process based on granulating high grade copper matte. While nickel matte grade and production rate. The solid feed to the converting furnace can be closelyCOPPER MATTE GRANULATION AT THE KENNECOTT UTAH COPPER
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Kinetics of nickel leaching from low-nickel matte in sulfuric acid
Section snippets Materials and reagents. The low-nickel matte samples were obtained from Jinchuan Group Ltd. of China (Jinchang, Gansu, China). Afterwards, the samples were ground into powder and sieved to different size fractions to examine the possible effect of particle size: −150 + 96, −96 + 75, −75 + 58 and − 58 + 48 μm.The distributions of precious metals (Ag, Au, Pd, Pt, and Rh) between copper matte and silica-saturated iron silicate slag were determined at 1523 K to 1623 K (1250 °C to 1350 °C), in controlledEquilibrium Distribution of Precious Metals Between Slag and Copper
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(PDF) Matte converting in copper smelting
Abstract and Figures. Copper matte converting is the key step to ensure high primary copper recovery in the smelting chain. Its development and the fundamental research carried out over the pastThis study proposes a novel process for simultaneous extraction of valuable metals by oxidative leaching of low grade nickel matte in a mixed solution of (NH 4) 2 S 2 O 8 and H 2 SO 4.The effects of some factors, such as particle size of matte, stirring speed, leaching time, leaching temperature, mass ratio of ammonium persulfate to matte Synchronous extractions of nickel, copper, and cobalt by selective
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(PDF) Efficient Synchronous Extraction of Nickel,
Efficient Synchronous Extraction of Nickel, Copper, and Cobalt from Low–Nickel Matte by Sulfation Roasting‒Water Leaching Process June 2020 Scientific Reports 10(1)Corpus ID: 94730340; Atmospheric acid leaching of nickel-copper matte from Impala Platinum Refineries @article{Lamya2006AtmosphericAL, title={Atmospheric acid leaching of nickel-copper matte from Impala Platinum Refineries}, author={R M Lamya and Leon Lorenzen}, journal={Journal of The South African Institute of Mining and [PDF] Atmospheric acid leaching of nickel-copper matte from
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Enhanced methods for nickel recovery from low-grade ores and
Hydrogen reduction of bleed stream of an Indian copper industry to produce nickel powder. Materials Letters, 62(17-18), pp.2880-2882. Agrawal, A., Kumari, S., Parveen, M. and Sahu, K. (2012). Exploitation of Copper Bleed Stream for the Extraction and Recovery of Copper and Nickel by Bis(2,4,4-trimethylpentyl) phosphinic Acid.The target matte grade was 5 wt pct [Fe] and the used gas atmosphere contained 55.0 mL/min CO 2, 9.9 mL/min CO, and 300 mL/min Ar. We defined the equilibrium time according to the measured concentrations of copper, nickel, sulfur, and iron in the matte using a LEO 1450 Scanning Electron Microscope (Carl Zeiss Precious Metal Distributions in Direct Nickel Matte Smelting
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Simultaneous extraction of nickel, copper, and cobalt from
1. Introduction. Nickel has many excellent properties including plasticity, corrosion resistance, magnetism (Morcali et al., 2017) and high temperature resistance (Li et al., 2017, Muzenda et al., 2013), which plays an important role in the development of key industries such as national defense and aerospace.Currently, approximately 60% nickel The mineral constituents of low-grade nickel matte in this study determined by X-ray diffraction (XRD, Rigaku-Smartlab, Japan with Cu Kα radiation) are shown in the Fig. 1, the results present that the main mineral phases are pentlandite (Fe 4 Ni 5 S 8), chalcocite (Cu 2 S), copper nickel alloy (CuNi), pyrite (Fe,Ni)S 2 and magnetite (Fe 3 O 4).Extraction of valuable metals from low-grade nickel matte by FeCl
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Recovery of nickel and copper from high-grade matte at Impala Platinum
A breakthrough of the application of pressure leaching in non-ferrous heavy metals such as copper, zinc and nickel was made in the 1940 s, and then a rapid development of pressure leaching was achieved once this technique was used in industrial applications in the wet extraction of nickel, cobalt, zinc, copper and other metals [6–10].DOI: 10.1016/0304-386X(78)90016-6 Corpus ID: 95788711; Recovery of nickel and copper from high-grade matte at Impala Platinum by the Sherritt process☆ @article{Plasket1978RecoveryON, title={Recovery of nickel and copper from high-grade matte at Impala Platinum by the Sherritt process☆}, author={R. P. Plasket and S. V. Recovery of nickel and copper from high-grade matte at Impala
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