platinum group recovery

platinum group recovery

US4337226A - Recovery of platinum-group metals from

The residue is then leached with a solution comprising sulfuric acid and NaOCl or H 2 O 2 to extract platinum, palladium, copper and gold. US4337226A - Recovery of platinum-group metals from ores - Google Patents Recovery of platinum-group metals from ores Download PDF Info Publication number US4337226A. US4337226A US06 ...

Platinum Group Metal Recovery from Spent Catalytic ...

Mar 20, 2014 · Platinum Group Metal Recovery from Spent Catalytic Converters . The catalyst component of a catalytic converter is usually platinum (Pt), along with palladium (Pd), and rhodium (Rh). All three of these platinum group metals, or PGMs, are extremely rare but have a broad range of applications in addition to catalytic converters.

Recovery of platinum-group metals using a microbial fuel cell

The aim of this study is to develop a recovery system of platinum group metals (PGMs), such as palladium, platinum, and rhodium from wastewaters that contain [PdCl 4] 2-, [PtCl 6] or [RhCl 6-n (H 2 O) 6]n-3 ions. A built-in electromotive force from a microbial fuel

A new approach to recover platinum-group metals from

Aug 01, 2020 · Pyrometallurgical recovery of platinum group metals from spent catalysts JOM , 69 ( 9 ) ( 2017 ) , pp. 1553 - 1562 CrossRef View Record in Scopus Google Scholar

Methods of recovering platinum-group metals from ...

高达12%返现 · Synopsis. As part of its strategic and critical minerals program, the U.S. Bureau of Mines investigated methods for beneficiating and recovering platinum-group metals (PGM) from ores found in the Stillwater Complex, the only primary resource of platinum-group metals located in

Pyrometallurgical Recovery of Platinum Group Metals

Jul 10, 2017 · 高达12%返现 · As an important secondary resource with abundant platinum group metals (PGMs), spent catalysts demand recycling for both economic and environmental benefits. This article reviews the main pyrometallurgical processes for PGM recovery from spent catalysts. Existing processes, including smelting, vaporization, and sintering processes, are discussed based in part on a

CA2045551A1 - Recovery of gold, silver and platinum

2045551 9010721 PCTABS00002 In the recovery of noble metals, including gold, silver and members of the platinum group, the ores or tailings are subjected to the action of various leaching agents, namely, sodium cyanide, thiourea, chlorine and aqua regia and optionally a leaching aid, such as chloride ions. The resulting slurry is then diluted to an optimum pulp density of 0.1 to 10.0% and ...

Separation and purification of platinum group metals

Apr 01, 2021 · In the past decades, the demand for platinum group metals (PGMs) has increased rapidly in various applications such as electronics, chemical engineering, biomedical devices, and automotive catalytic converters. Recovery of PGMs from secondary resources is necessary for addressing the supply issues.

PLATIRUS | PGM Recycling

PLATInum group metals Recovery Using Secondary raw materials (PLATIRUS), a European Union (EU) Horizon 2020 project, aims to address the platinum group metal (pgm) supply security within Europe by developing novel and greener pgm recycling processes for autocatalysts, mining and electronic wastes. The initial focus was on laboratory-scale ...

Recovery of platinum-group metals using a microbial fuel cell

The aim of this study is to develop a recovery system of platinum group metals (PGMs), such as palladium, platinum, and rhodium from wastewaters that contain [PdCl 4] 2-, [PtCl 6] or [RhCl 6-n (H 2 O) 6]n-3 ions. A built-in electromotive force from a microbial fuel

PLATINUM GROUP METALS RECOVERY - The Board of Regents

More typically, the PGM includes at least one metal selected from the group consisting of platinum, rhodium and palladium, and at least 95%, or at least 98%, of the at least one metal is recovered in the step of recovering at least a portion of the PGM from the recovery mixture. The aqua regia generally comprises about a 3 to 1 ratio or less of ...

Metals | Free Full-Text | Platinum Group Elements Recovery ...

The recovery of platinum group elements (PGE (platinum group element coating); Pd, Pt, and Rh) from used catalytic converters, using low energy and fewer chemicals, was developed using potassium bisulfate fusion pretreatment, and subsequently leached using hydrochloric acid. In the fusion pre-treatment, potassium bisulfate alone (without the addition of an oxidant) proved to be an effective ...

Hydrometallurgical recovery of platinum group metals from ...

Abstract: This work presents studies on the recovery of platinum group metals (PGM), especially platinum and rhodium, from spent automotive converters using hydrometallurgical techniques such as ...

Recovery of Platinum, Palladium, and Gold From Stillwater ...

RECOVERY OF PLATINUM, PALLADIUM, AND GOLD FROM STILLWATER COMPLEX FLOT ATION CONCENTRATE BY A ROASTING·LEACHING PROCEDURE By E. G. Bdglin, 1 J. M. Gomes, 2 T. G. Carnahan,2and J. M. Snider3 ABSTRACT The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from ...

Recovery platinum group metals from oxides ores - BHP ...

Recovery platinum group metals from oxides ores . United States Patent 5292490 . Abstract: A method is provided for recovering at least one platinum group metal from an ore containing the same. The method comprises reducing the particle size of the ore to provide the platinum group metal in a leachable condition following which the ore is ...

(PDF) Recovery of platinum from spent catalyst

In the last decades, a worldwide investment in the recovery or substitution of platinum group metals (PGMs) has been financed. PGMs have been classified as critical raw materials (CRMs), thus a ...

Platinum Group Metal Recovery from Spent Catalytic ...

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Metals smelting-collection method for recycling of ...

Nov 16, 2020 · Kim, CH, Woo, SI, Jeon, SH (2000) Recovery of platinum-group metals from recycled automotive catalytic converters by carbochlorination. Industrial &

Extraction and Refining of the Platinum Metals | Johnson ...

The earlier stages of the mining and recovery of the platinum metals from the Rustenburg Platinum Mines have been reviewed in some detail in this journal (), while the geology of the Bushveld Igneous Complex and the platinum reefs—constituting an enormous reserve of platinum metals—which are mined by the Rustenburg company has also been described ().

US20200032370A1 - Method for platinum group metals ...

A method for recovery of platinum group metals from a spent catalyst is described. The method includes crushing the spent catalyst to obtain a catalyst particulate material including particles having a predetermined grain size. The method includes subjecting the catalyst particulate material to a chlorinating treatment in the reaction zone at a predetermined temperature for a predetermined ...

Platinum group elements in gabbroic intrusions from the ...

Aug 11, 2020 · Porphyry Cu–Au ores areamong the important types of porphyry deposits. Some of these are enriched in Pd and Pt, which in some cases have economic potential for PGE (platinum group element) recovery. The behaviour of PGE and S-saturation in mafic intrusions associated with porphyry deposits are, however, poorly constrained.

Palladium outlook brightest once auto sector rebounds ...

Oct 25, 2021 · The well-documented shortages of semiconductors have slammed the brakes on global vehicle production. As a result, the near-term prospects for platinum group metals (PGMs) demand in autocatalysts have been dented. It is only once a meaningful recovery in auto output takes hold that demand for PGMs will pick up once again. But the likelihood is that semiconductor shortages rumble

Platinum group metal separation reagent and platinum group ...

Jun 26, 2007 · JP-5007983-B2 chemical patent summary.

Biosorptive recovery of platinum from platinum group metal ...

The process of platinum group metal (PGM) refining can be up to 99.99% efficient at best, and although it may seem small, the amount of valuable metal lost to waste streams is appreciable enough to warrant recovery.

Behavior of Platinum Group Metals during Their ...

The behavior of platinum group metals (PGMs) during their recovery with smelting of spent au-tomotive ceramic catalysts powder in the presence of metallic copper at elevated temperatures is studied in this paper. Two different metal recovery mechanisms proved to be active in this process:

Leaching and recovery of platinum group metals from UG-2 ...

Existing processes for the recovery of platinum group metals (PGM) from UG-2 ores place stringent requirements with regard to chromite content (about 2.8 per cent) upon feed material to the plant. The conventional process sequence involves: smelting of a flotation concentrate to remove gangue material and to produce an iron-nickel-copper-PGM matte

Recovering Platinum-Group Metals in Catalytic Converters

Jul 18, 2018 · Recovery of the dissolved platinum- group metals from the pregnant leach solution as metallic concentrate by thermal decomposition of the metal-cyanide complexes was greater than 99.8 pct. The concentrate contained 60 to 70 pct platinum-group metals and is an excellent feed for a refinery.

RECOVERY OF PLATINUM GROUP METALS - finishing

"RECOVERY OF PLATINUM GROUP METALS" DEAR SIR, We are the Gold refiners having the chlorination and electrolysis processes. I would like to know the process to recover Platinum, palladium and other metals from the solutions after recovering gold. I want to know the chemical processes involved in recovering these metals.

Collector-metal behaviour in the recovery of platinum ...

Nov 29, 2013 · A commercial pyrometallurgical process for the extraction of platinum-group metals (PGM) from a feedstock slag was analysed with the use of a model based on computational fluid dynamics. The results of the modelling indicate that recovery depends on the behaviour of

Platinum group elements in gabbroic intrusions from the ...

Aug 11, 2020 · Porphyry Cu–Au ores areamong the important types of porphyry deposits. Some of these are enriched in Pd and Pt, which in some cases have economic potential for PGE (platinum group element) recovery. The behaviour of PGE and S-saturation in mafic intrusions associated with porphyry deposits are, however, poorly constrained.

Bob Weeks - Co-owner, Platinum Events and Distribution ...

Bob Weeks Co-owner, The Platinum Group, International Recovery Group, Tesla Payments Aston Township, Pennsylvania, United States 500+ connections

Comments on: Platinum Group Metal Recovery from Spent ...

I'm impressed,I have to admit. Rarely do I encounter a blpg that's both educative and engaging, and let me tell you, you have hit the nail on the head.

Ken Cage - CEO of IRG Group - International Recovery Group ...

Jul 12, 2021 · International Recovery Group. 2005 - Jan 202015 years. Orlando, Florida Area. IRG is the premiere repossession and remarketing company in the world. We focus on

EnviroLeach Provides Update on Recovery of Platinum Group ...

Jun 28, 2021 · The best single result, using a sample with a platinum head grade of 5,920 g/t and palladium head grade of 4,044 g/t resulted in over 98% recovery of both metals.

Behavior of Platinum Group Metals during Their ...

The behavior of platinum group metals (PGMs) during their recovery with smelting of spent automotive ceramic catalysts powder in the presence of metallic copper at elevated temperatures is studied in this paper. Two different metal recovery mechanisms proved to be active in this process: 1) Wetting of micro-dispersed particulates of PGMs in the slag by molten copper, formation of copper ...

Recovering platinum group metals: Heraeus and | BRAIN ...

Jul 23, 2020 · Platinum group metals such as platinum, palladium or rhodium are used in various industries. Their recovery is becoming increasingly important as an alternative to the extraction of raw materials from primary raw material sources – but recycling processes are often associated with the consumption of large quantities of chemicals and energy.

Platinum Group Metals Recovery Using Secondary Raw ...

PLATInum group metals Recovery Using Secondary raw materials (PLATIRUS), a European Union (EU) Horizon 2020 project, aims to address the platinum group metal (pgm) supply security within Europe by developing novel and greener pgm recycling processes for autocatalysts, mining and electronic wastes. The initial focus was on laboratory-scale ...