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platinum group ore leaching costsale

Leaching platinum-group metals in a sulfuric acid/chloride …

A leaching process was established based on the ability of platinum-group metals to form stable chloro-complexes in acidic chloride solutions.

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THE ADSORPTION AND ELUTION OF PLATINUM …

This paper investigates the recovery of platinum group metals (PGMs) from a dilute cyanide leach solution containing base metals, in a manner similar to that used for gold extraction in a ... conceptual flow sheet for heap leaching of PGMs from a low-grade ore concentrate. Chen and Huang (2006) and Huang et al. (2006) investigated two-stage ...

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Oxygen pressure leaching–flotation joint process for …

[J]. Platinum Metals Review, 2012, 56(1): 2âˆ'19. [3] MUDD G M. Key trends in the resource sustainability of platinum group elements [J]. Ore Geology Reviews, 2012, 46(2): 106âˆ'117. [4] MWASE J M, PETERSEN J, EKSTEEN J J. A conceptual flowsheet for heap leaching of platinum group metals (PGMs) from a low-grade ore concentrate [J].

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Review of Recovery of Platinum Group Metals from Copper Leach Residues

ABSTRACT Porphyry copper and mixed copper-gold sulfide deposits contain varying amounts of precious (gold and silver) and platinum group metals (PGMs). Currently, milling and froth flotation is the most common processing route for the treatment of high-grade base metal sulfide ores. During this process, the precious metals and …

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Single-Step Hydrometallurgical Method for the Platinum Group …

Abstract Platinum group metals (PGMs) are considered critical raw materials, thus their recycling and re-use is of outmost importance. Among the PGMs, platinum (Pt), palladium (Pd) and rhodium (Rh) are the basic metals used in catalytic converters. Concerning the stringent EU standards for emission control imposed to car …

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Direct leach approaches to Platinum Group Metal …

Platinum and palladium recovery Leaching abstract Platinum Group Metals (PGMs), often with associated gold, have very few occurrences where they are present in an ore deposit at economically ...

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Copper Heap Leaching | Encyclopedia MDPI

Heap leaching has also been considered for zinc and nickel and more lately for platinum group metal (PGM)-bearing ores and electronic scrap . In heap leaching, the crushed ore is stacked on an …

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Recovery of platinum group metals from spent automotive converters …

1. Introduction. The platinum group metals (PGMs) consist of six elements: rhodium, ruthenium, palladium, platinum, iridium, and osmium. These metals are used in such areas as catalysts, both petrochemical and automotive catalytic converters [1], hydrogen fuel cells [2] and electronics [3].Platinum and palladium are desirable …

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Direct leach approaches to Platinum Group Metal (PGM) …

The platinum group metals (PGMs) and associated minerals are particularly refractory to most traditional direct leach processes. However, the remoteness of many new ore deposits, socio-political risks, the scarcity of skilled labour and constraints on the availability of water and electrical power makes it increasingly more difficult to implement the …

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Oxygen pressure leaching–flotation joint process for …

DOI: 10.1016/S1003-6326(19)65017-X Corpus ID: 199170840; Oxygen pressure leaching–flotation joint process for Jinbaoshan platinum group minerals @article{Rao2019OxygenPL, title={Oxygen pressure leaching–flotation joint process for Jinbaoshan platinum group minerals}, author={Shuai Rao and Zhiqiang Liu and Xian …

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Direct leach approaches to Platinum Group Metal (PGM) …

DOI: 10.1016/J.MINENG.2015.04.015 Corpus ID: 111146351; Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review …

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A conceptual flowsheet for heap leaching of platinum group …

The cyanide leach should be operated for 50 days or more to achieve 50% platinum extraction if the linear trend (from the cyanide leach experiment) in Fig. 6 continues for the heap cyanide leach process. This will depend on the mineralogy of the …

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Leaching platinum-group metals in a sulfuric acid/chloride …

A leaching process was established based on the ability of platinum-group metals to form stable chloro-complexes in acidic chloride solutions. Industrial catalyst losses were examined for the recovery of platinum, palladium, and rhodium by leaching with a mixture of sulfuric acid and sodium chloride to avoid using aqua regia or autoclave conditions. …

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Platinum, palladium and gold leaching from magnetite ore, …

A leaching process for platinum contained in a magnetite ore was studied, as an alternative process to cyanidation and aqua regia digestion. The proposed process employs concentrated chloride solutions and ozone gas injection during the entire leaching process. The effect of pH, chloride concentration and temperature was analyzed.

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Contrasting platinum-group element geochemistry of …

Contrasting platinum‑group element geochemistry of post‑collisional porphyry Cu ± Au ore‑bearing and barren suites in the central and southeastern Urumieh‑Dokhtar magmatic arc, Iran Jiwon Hwang1 · Jung‑Woo Park1,2 · Bo Wan3 · Maryam Honarmand4 Received: 26 May 2022 / Accepted: 16 July 2023 / Published online: 29 July 2023

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Direct leach approaches to Platinum Group Metal (PGM) …

Platinum Group Metals (PGMs), often with associated gold, have very few occurrences where they are present in an ore deposit at economically extractable levels.

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PGM extraction from oxidized ores using flotation and …

Pd, nitric acid achieved extractions of 34.5% Pt and 7.1% Pd. The best leaching results were obtained using aqua regia, with extractions of 48% Pt and 24.5% Pd. In view of the low PGM extractions obtained by leaching ROM ore, it was considered more promising to leach the concentrate as a way of further upgrading it.

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Hydrometallurgical extraction of platinum group metals …

The aim of this study is to investigate the economic and technical feasibility of processing platinum group metals (PGMs) and base metals (BMs) from a low-grade ore concentrate produced in the concentrator plant at Lonmin Pic. The PGMs of particular interest are platinum, palladium, ruthenium and rhodium, while the BMs of interest are copper and …

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(PDF) A conceptual flowsheet for heap leaching of platinum group metals

A standard platinum flowsheet achieves this by smelting of the ore concentrate before leaching. In In the present case a hydrometallurgical iron removal step may be required depending on the amount

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OneMine | Leaching And Recovery Of Platinum Group …

Existing processes for the recovery of platinum group metals (PGM) from UG-2 ores place stringent requirements with regard to chromite content upon feed material to the plant. An alternative hydrometallurgical process for which this is not an issue is proposed that involves reductive roasting of the ore followed by leaching with …

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The extractive metallurgy of South Africa's platinum ores

The present study investigated a novel method of alkaline ferricyanide leaching to extract palladium (Pd) from a Western Australian disseminated platinum-group metal (PGM) oxide ore that bears Ni ...

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Platinum, palladium and gold leaching from magnetite ore, …

Platinum and palladium can be present as iron "micro-alloys" type [Pt-Pd] x Fe y (Maier et al., 2003, Stone, 1990). No detailed mineralogy. Conclusions. The PGM (platinum, palladium and gold) leaching from magnetite ore is possible in the presence of chlorides using ozone as the oxidizing agent.

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Direct leach approaches to Platinum Group Metal …

International PGM Technologies, to recover platinum group metals, gold and base metals such as Cu, Ni and Co from a variety of …

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Metals | Free Full-Text | Refining Approaches in the Platinum Group

Mineable platinum group metal (PGM) deposits are rare and found in relatively few areas of the world. At the same time, the use of PGM is predicted to expand in green technology and energy applications, and PGMs are consequently currently listed as European Union critical metals. Increased mineralogical complexity, lower grade ores, …

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Enrichment of Platinum Group Metals from Spent …

Spent automotive catalysts consist of platinum group metals (PGMs) in their leaching residue (LR) after wet extraction and are the leading secondary resource of PGMs. Herein, PGMs were captured from the LR of spent automotive catalysts by NiSO4 smelting, followed by treatment with sulfuric acid to enrich PGMs from the trap. The …

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Reﬁning Approaches in the Platinum Group Metal …

Keywords: platinum group metals; value chain; reﬁning; leaching 1. Introduction The platinum group metals (PGMs) are a family of six metals. They are rare and possess …

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Direct leach approaches to Platinum Group Metal (PGM) …

DOI: 10.1016/J.MINENG.2015.04.015 Corpus ID: 111146351; Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review @article{Mpinga2015DirectLA, title={Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review}, author={Cleophace Ngoie Mpinga and …

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Recovery of platinum group metals from spent automotive …

As for the primary production of PGMs, mining ores are divided to Platinum Group Element (PGE) dominant ores (Merensky Type, Chromite Type, Placer Type, Dunite Pipe), Ni–Cu dominant ores (Class I-IV Ni–Cu Ores) and Miscellaneous ores (Copper Molybdenum Ores, Ni Laterites, Black Shales, Carbonate Ores, Porphyry Copper Ores) …

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Potential Processing Routes for Recovery of Platinum Group …

Ammonia leaching achieved poor base-metal extractions (3% Ni and 55% Cu) from the oxidized Pilanesburg Platinum Mine ore in contrast to high base-metal …

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