extraction of platinum

platinum mining and extraction methods by Greg Campbell on ...

Platinum should platinum still be mined Platinum refining and issues platinum mining and extraction methods platinum description and uses Improved separation and refining procedures have become available for all of the precious metals. These commonly involve operations such as

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Notes OCCURRENCE AND EXTRACTION OF METALS

Occurrence and Extraction of Metals MODULE - 6 Chemistry of Elements 16 OCCURRENCE AND EXTRACTION OF METALS Metals and their alloys are extensively used in our day-to-day life. They are used for making machines, railways, motor vehicles, bridges, buildings, agricultural tools, aircrafts, ships etc. Therefore, production of a variety of metals in large quantities is necessary for the economic ...

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Platinum group | chemical element group | …

Extraction and refining. The separation chemistry of the platinum-group metals is among the most complex and challenging of metal separations. A brief description of procedures for isolating the platinum-group metals is set forth below, followed by descriptions of assaying and scrap-refining techniques. Individual solubilization

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extraction crushing grinding and flotation of platin

extraction crushing grinding and flotation of platin. platinum crushing Liming heavy industry is specialized in the design manufacture and supply of crushing equipment used in mining industry The product range of our company comprises mobile crushing plant jaw crusher cone crusher impact crusher milling equipment ball mill vibrating feeders screens and equipment for washing sand

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Extraction Of Silver - Mineral Processing & …

Extraction of Silver. After a chloridizing roasting the ore should be examined to ascertain the amount of chloride of silver contained in it, according to 21. In case the extraction should not be satisfactory, it is then easier to find what the cause is. The ore is then prepared for leaching. First Leaching. The roasted ore contains chloride of silver, which does not dissolve in water, but ...

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Solvent extraction in platinum group metal …

This paper indicates the various ways in which the chemistry of the platinum group metals (PGM) can be manipulated to achieve separations using solvent extraction techniques and is not intended to be a comprehensive review of published work. Differences in the chemistry of PGM and base metals are emphasised as the latter are present in refinery liquors. Mechanisms of solvent extraction ...

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The role of macrocyclic compounds in the extraction and ...

Platinum extraction achieved a maximum rate of 98.7% with 18-crown-6 as a synergist at a hydrochloric acid concentration of 5.0 mol dm −3. On the other hand, with the other three CEs, platinum was extracted at rates between 54 and 78% by mixing with Alamine 304-I.

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platinum mining and extraction methods by Greg Campbell on ...

Platinum should platinum still be mined Platinum refining and issues platinum mining and extraction methods platinum description and uses Improved separation and refining procedures have become available for all of the precious metals. These commonly involve operations such as

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(PDF) Commercial Processes for the Extraction of Platinum ...

The extraction of platinum and rhodium from scrapped honeycomb autocatalyst into hydrochloric acid/aluminum chloride/nitric acid solutions is described. Results are given for the effects of ...

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Application of Ionic Liquids in Solvent Extraction of ...

have been expanding in various fields, including extraction and separation of metals. Platinum group metals (PGMs) are attractive targets for recovery using IL systems. In recent years, ILs have shown excellent performance for PGM extraction. In this review, we focus on the recent progress in solvent extraction using ILs for PGM recovery. Although application of ILs in PGM recovery is still in ...

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Platinum - Wikipedia

Platinum is always found alongside other PGMs. In South Africa's Bushveld complex and a limited number of other ore bodies, PGMs occur in sufficient quantities so as to make it economical to exclusively extract these metals; whereas, at Russia's Norilsk and Canada's Sudbury deposits platinum and other PGMs are extracted as by-products of nickel and copper.

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Extraction and Refining of the Platinum Metals

extraction of the platinum metals from these OTCS, and thereafter as smelters and rejners of the output from the mines. This article describes the complex and lengthy cycle of operations required to effect complete recovery of the six platinum metals ...

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Platinum Extraction - praxis-purin.de

Platinum Extraction. How is platinum extracted from a catalytic converter by jason medina omplete removal of catalytic converter from vehiclen order to extract the platinum from within a catalytic converter, the converter must be removed completely from the vehicleost catalytic converters simply bolt on to a vehicles exhaust system with a series of.

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How is platinum extracted from its ore - LinkedIn SlideShare

Sep 19, 2014· An ore is a naturally occurring mineral from which a pure metal can be extracted. For Platinum, the two- chief minerals are sperrylite or platinum arsenide (PtAs2) and co-operate or platinum sulfide (Pts). Extracting Platinum from these ores is arguably one of the most capital and labour intensive operations in the world.

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Extracting platinum metals - Chemical Engineering | Page 1

Mar 01, 2016· Platinum-group metals form a complex range of 30 to 40 minerals, each with a different resistance to leaching, making it difficult to find a unique solution for all deposits, explains Eksteen. Once leached, the metals are adsorbed from solution on to activated carbon, he says. The next step is to elute (wash with solvent) metals from the carbon ...

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How is platinum extracted from its ore - Answers

Platinum is rarely found on its own, but in combination with other base and precious metals. Extraction of the pure metal from ores is a complex process, and includes milling the ore, a froth ...

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Gold Processing Methods & Gold Ore Extraction

Of all the methods of extracting gold & processing it from its ore, I used a few to evaluate two principal flowsheets in this case study. The flowsheets utilized operations that involved flotation, cyanidation and gravity concentration. Tests that mirror each of these unit operations were utilized to evaluate the principal flowsheets. This page offers a comparative review of gold recovery ...

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The Extraction of Silver - Chemistry LibreTexts

Extraction of Silver by cyanide process and its uses. Silver also occurs both in combined state as well as in free state. The important ores of silver are: Argentite (Ag 2 S), Copper silver glance, Horn silver, Ruby silver. The silver ores are found along with gold ores in some parts of India. Extraction . Silver is extracted from the ore-argentite ((Ag_2S)). The process of extraction of ...

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Selective Extraction of Palladium and Platinum …

Extraction and Stripping of Platinum from Hydrochloric Acid Medium by Mixed Imidazolium Ionic Liquids. Industrial & Engineering Chemistry Research 2015, 54 (2), 705-711. DOI: 10.1021/ie503502g. Yulun Han, Cuikun Lin, Qingguo Meng, Fengrong Dai, Andrew G. Sykes, Mary T. Berry, and P. Stanley May . (BMI)3LnCl6 Crystals as Models for the Coordination Environment of LnCl3 (Ln = Sm, Eu, Dy, …

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SOLVENT EXTRACTION OF PLATINUM-GROUP …

The solvent extraction of palladium(II), platinum(II), platinum (IV), rhodium(III), iridium(III) and iridium(IV) from hydrochloric acid solutions by some dialkyl sulphoxides of the types R 2 SO, RR′SO and R 2 ′SO, where R=alkyl and R′=cycloalkyl, was investigated. The order of extraction of these metals by 0.50 M di-n-hexyl sulphoxide in xylene from solutions containing 1 to 6 M ...

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Platinum - Exploration and Extraction

Apr 03, 2002· Platinum group metals (PGM) are also extracted from the Merensky reef extending along the whole eastern length of the Bushveld. Impala Platinum, Lonmin Platinum, and Anglo Platinum are some of the largest mining firms that extract ores from this area.

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How Is Platinum Extracted? | Reference.com

Platinum is an incredibly rare metal that is mined and extracted in a variety of different ways depending on the technological sophistication of the miners attempting to extract it. It is incredibly difficult to find in large pure quantities, so it needs to be extracted from the ore in a very specific way.

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Hydrometallurgical recovery/recycling of platinum by the ...

The natural resources of platinum and platinum group metals (PGMs; platinum, palladium, rhodium, ruthenium, iridium and osmium) are limited and mainly found in Russia, North America, Canada and South Africa. South Africa is the world's largest producer of platinum, which is mined in an area called the Bushveld Igneous Complex.

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(PDF) " PLATINUM EXTRACTION AND …

Platinum extraction, uses and environmental impacts. A seminar presented to Tamil Nadu Agricultural University.

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Solvent extraction of platinum group metals - …

Amine extraction processes have been investigated by chemical shake-up tests and distribution ratios determined with all classes of amines and quaternary ammonium compound for rhodium, iridium, palladium, platinum, ruthenium, osmium and gold using radio tracer techniques. Proposed schemes for separation of platinum metals from base metals using primary amine and separation of Pt/Pd from …

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Notes OCCURRENCE AND EXTRACTION OF METALS

Notes 2 CHEMISTRY MODULE - 6 Occurrence and Extraction of Metals Chemistry of Elements zlist and explain various methods for concentration of ores (gravity separation, magnetic separation, froth floatation and chemical method); zexplain different metallurgical operations : roasting, calcination and smelting with suitable examples; zchoose the reducing agent for a given ore;

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Extraction Of Silver - Mineral Processing & Metallurgy

The extraction of silver by the solving processes simple. The ore is first roasted with salt in the usual way, whereby the formation of base metal chlorides cannot be avoided entirely. After roasting, the ore is first subjected to leaching with water, in order to extract the base metal chlorides, and then with hyposulphite of lime, to extract the silver.

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