recovery platinum complex

recovery platinum complex

Recovery of Platinum(IV) and Palladium(II) from Complex ...

2017-12-21  Recovery of Platinum(IV) and Palladium(II) from Complex Hydrochloric Acid Matrices by a Thiodiglycolamide Derivative A.P. Paiva* 1, G.I. Carvalho 1, M.C. Costa 2, A.M.R. Costa 3, C.A. Nogueira 4 Summary The solvent extraction performance of N,N’-dimethyl-N,N’-dicyclohexylthiodiglycolamide

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

For several years the Bureau of Mines has been investigating methods for concentrating and recovering platinum-group metals (PGM) and associated base metals from ores from the Stillwater Complex, Montana, because it is the only major U.s. PGM resource (1-4).4 The most significant PGM mineralization occurs in conjunction with iron, nickel, and copper sulfides which are found in mineralized layers of the Banded Zone of the Complex. Because of this sulfide association, the Bureau's studies focused on traditional techniques for treating sulfide ores. Samples of Stillwater Complex

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Methods of recovering platinum-group metals from ...

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 the United States.

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Recovery of Platinum(IV) and Palladium(II) from

Summary The solvent extraction performance of N,N’ -dimethyl-N,N’ -dicyclohexylthiodiglycolamide (DMDCHTDGA) towards Pt(IV) and Pd(II) in HCl solutions has recently been published. It was shown that these two platinum-group metals (PGMs) are efficiently extracted from 8 M HCl aqueous phases, being subsequently separated by sequential strippings: 1 M HCl allows Pt(IV) recovery, whereas Pd ...

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Recovery of platinum(IV) and palladium(II) from

It was generally observed that the additional metal ions do not affect the recovery of Pd(II) and Pt(IV) by DMDCHTDGA. Fe(III), Zn(II) and Zr(IV) are co-extracted with Pt(IV) and Pd(II); Fe(III) and Zn(II) were efficiently scrubbed with water, whereas Zr(IV) was removed by an acidified aqueous solution.

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Selective Recovery of Platinum Group Metals and Rare

2016-8-19  Selective Recovery of Platinum Group Metals and Rare Earth Metals from Complex Matrices Using a Green Chemistry/Molecular Recognition Technology Approach Steven R. Izatt , IBC Advanced Technologies, Inc., American Fork, UT, 84003 USA

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Investigations into the Recovery of Platinum Group ...

2021-6-3  Platinum telluride (PtTe2) recovery-time curves at pH 9 comparing no reagents, SIBX and CuSO4 + SIBX in synthetic water, ionic strength = 3.5 E–02 The microflotation results of the Pt arsenides are of particular interest. Empirical

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Selective Recovery of Platinum(IV) from Palladium(II ...

2017-3-8  Selective recovery of platinum (Pt(IV)) from palladium (Pd(II))-containing hydrochloric acid (HCl) solutions was studied using 4-(hexyloxy)aniline hydrochloride (HOA). Pt was selectively and quantitatively recovered as precipitates at HCl concentrations of over 4 M. Furthermore, the recovery of Pt was completed in just a few minutes.

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Extraction and Refining of the Platinum Metals

2 天前  This article describes the complex and lengthy cycle of operations required to effect complete recovery of the six platinum metals and to yield at the same time electrolytically refined copper and nickel. Today the joint activities of Rustenburg and Johnson Matthey constitute the world’s largest source of the platinum

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THE RECOVERY OF PLATINUM, PALLADIUM, AND GOLD

2012-9-6  From Table III it can be seen that high recoveries of gold (>80 per cent), platinum (>98 per cent) and palladium (>99 per cent), were obtained with Dowex 21K XLT, Amberjet 4600, and Amberlite PWA-5. Minix showed moderate recoveries for platinum and palladium (72 per cent and 61 per cent respectively), with a high recovery of gold (>95 per cent).

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Biological Recovery of Platinum Complexes from Diluted ...

Moreover, platinum’s high market value (av. 34.7 $ g-1 in 2015 [8]) and criticality stimulate the effective recovery and valorization of critical resources [9, 10]. Case by case, it should be questioned if the targeted Pt-complex could be removed and recovered from the waste stream, and whether this recovery could be interesting from an

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Platinum recovery from a spent industrial

2004-2-20  Recovery of platinum from a selective linear paraffin dehydrogenation spent catalyst is reported using cyanide leaching method followed by adsorption of the cyanide platinum complex onto an anionic resin. The resin on which the platinum complex is adsorbed is dried and burned in an oxidizing atmosphere at 800–850 °C. The recovered metallic ...

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Recovery of platinum(IV) and palladium(II) from

Recovery of platinum(IV) and palladium(II) from complex hydrochloric acid matrices by a thiodiglycolamide derivative By A. P. Paiva, G. I. Carvalho, M.

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THE RECOVERY OF PLATINUM, PALLADIUM, AND GOLD

2012-9-6  Leaching platinum group metals with cyanide, however, is a new concept and process option. The research available is very much limited to the recovery of platinum group metals from recycled automotive catalyst using cyanide8-14. The concentration of platinum group metals in

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Selective Recovery of Platinum Group Metals and Rare

2016-8-19  Selective Recovery of Platinum Group Metals and Rare Earth Metals from Complex Matrices Using a Green Chemistry/Molecular Recognition Technology Approach. Steven R. Izatt, IBC Advanced Technologies, Inc., American Fork, UT, 84003 USA. Search for more papers by this author.

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Recovery of platinum, palladium, and gold from

2021-4-27  "The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM resource. Development of a suitable extraction technique will contribute to its exploitation.

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The recovery of platinum-group elements from the

The recovery of platinum-group elements from the UG-2 chromitite, Bushveld Complex – a mineralogical perspective. C. J. Penberthy 1, E. J Oosthuyzen 1 R. K. W. Merkle 2 Mineralogy and Petrology volume 68, pages 213–222 (2000)Cite this article

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Recovery of platinum group metals from spent

Recovery of palladium, platinum, rhodium and ruthenium from catalyst materials using microwave-assisted leaching and cloud point extraction Hydrometallurgy , 154 ( 2015 ) , pp. 56 - 62 , 10.1016/j.hydromet.2015.03.014

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Rapid and selective recovery of palladium from

2018-11-15  Rapid and selective recovery of palladium from platinum group metals and base metals using a thioamide-modified calix[4]arene extractant in environmentally friendly hydrocarbon fluids

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Electrocatalytic recovery of elements from complex ...

2014-12-15  The dissolution and subsequent selective recovery of elements from complex mixtures naturally necessitates redox chemistry. The majority of processes involve hydrometallurgical dissolution followed by selective chemical precipitation or electrochemical winning. The atom and energy efficiencies of these proce Elemental Recovery and Sustainability

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Biological Recovery of Platinum Complexes from Diluted ...

Moreover, platinum’s high market value (av. 34.7 $ g-1 in 2015 [8]) and criticality stimulate the effective recovery and valorization of critical resources [9, 10]. Case by case, it should be questioned if the targeted Pt-complex could be removed and recovered from the waste stream, and whether this recovery could be interesting from an

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Recovery of platinum(IV) and palladium(II) from

Recovery of platinum(IV) and palladium(II) from complex hydrochloric acid matrices by a thiodiglycolamide derivative By A. P. Paiva, G. I. Carvalho, M.

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Recovery of platinum, palladium, and gold from

2021-4-27  "The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM resource. Development of a suitable extraction technique will contribute to its exploitation.

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Biosorptive recovery of platinum from platinum group

Biosorptive recovery of platinum from platinum group metal refining wastewaters by immobilised Saccharomyces cerevisiae. Mack CL(1), Wilhelmi B, Duncan JR, Burgess JE. Author information: (1)Department of Biochemistry Microbiology and Biotechnology, Rhodes University, PO Box 94, Grahamstown, 6140, South Africa.

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Recovery of Platinum-Group Metals from Gabbroic

Platinum-group metals are found mainly as arsenides, sulfarsenides, sulfides and platinum-iron alloys in gabbroic rocks. Major losses of platinum-group metals in extraction most frequently occur during beneficiation. In the massive sulfide rocks of Minnesota’s copper-nickel bearing Duluth Complex, platinum-group minerals are in close association with arsenide minerals as inclusions.

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Rapid and selective recovery of palladium from

2018-11-15  Rapid and selective recovery of palladium from platinum group metals and base metals using a thioamide-modified calix[4]arene extractant in environmentally friendly hydrocarbon fluids

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Effect of pH on the Recovery and Grade of Base Metal ...

2011-9-10  recovery and grade of the Platinum Group Metals (PGMs) and base metal sulphides from the UG2 ore of the bushveld complex. This was achieved through running a series of test work in a Denver flotation cell at varying pH 6-11 at constant reagent dosage. The UG-2 reef is characterized by two

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Electrocatalytic recovery of elements from complex ...

2014-12-15  The dissolution and subsequent selective recovery of elements from complex mixtures naturally necessitates redox chemistry. The majority of processes involve hydrometallurgical dissolution followed by selective chemical precipitation or electrochemical winning. The atom and energy efficiencies of these proce Elemental Recovery and Sustainability

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Jubilee Metals Group Plc Projects Operations

Jubilee Metals Group Plc is an industry leading metal recovery business focussed on the retreatment and metals recovery from mine tailings, waste, slag, slurry and other secondary materials generated from mining operations.. Jubilee’s shares are traded on AIM (JLP) and Alt-X (JBL).

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