A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and non-magnetic fractions; the non-magnetic fraction, containing a substantial portion of the platinum group metals, is concentrated and smelted to produce a metal layer containing platinum group metals; and the …
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Download scientific diagram | Flow chart of platinum extraction process from publication: Optimization of the hydrolysis cake filtration process in platinum extraction | The study was carried out ...
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Figure 1 shows the platinum extraction process based on the glove box technology and starting with platinum rich liquor [6, 7]. Figure 1. Flow chart of platinum extraction process . The glove box is normally dressed with a needle-felt cloth and filter papers that are replaced after every single filtration process of a batch at a high cost.
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Rough Smelting: Separate the platinum from other platinum group metals like rhodium and palladium by rough smelting, usually using a pyrometallurgical process. Step 3: Refining and Purification
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Process Details Lonmin Platinum Anglo Platinum Impala Platinum Technology Precipitation Solvent extraction, SX Ion exchange, IX Feed 65–75% PGMs 30–50% PGMs 60–65% PGMs
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Process for extraction of platinum group metals from chromite-bearing ore . Jun 10, 1980 - Texasgulf Inc. A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and non-magnetic fractions; the non-magnetic fraction, containing a ...
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The extraction process routes to recover high purity of platinum group elements are also reviewed. The classification briefly describes the different types of ore deposits. The mineralogical analysis gives a general idea about the distribution and behavior of the platinum group element ores; also it helps to choose the beneficiation techniques.
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To extract the platinum group metals from the ore, and to refine them to the very high purity required for their many applications, requires a multitude of complex operations. ... An improved process which makes use of liquid–liquid extraction has been developed to a pilot plant stage, and this paper highlights some of the chemical and ...
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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. ... The extraction process consists of three major steps: (1) PGMs chlorocomplex was extracted via ion-exchange between the feed phase ...
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This paper reviews the PGMs recovery from waste catalysts using a metals smelting-collection process, which belongs to the main pyrometallurgical process, in the presence of various metal collectors, such as lead, copper, iron, matte, print circuit board (PCB) or reactive metals of calcium and magnesium. ... Baghalha M, Gh HK, Mortaheb HR (2009 ...
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Cost and Time: The process of extracting platinum from a catalytic converter is time-consuming and costly, requiring significant investment in equipment and expertise. Conclusion
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The third step is the extraction process. This is done by crushing the ore into minuscule pieces, once this is done the next process the platinum must proceed through is the flotation separation process, which relies on air particles to push …
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A process for separating platinum group metals (PGM's) from various feedstock materials, is disclosed, wherein a plasma arc flame is employed to produce a superheated puddle on the surface of a slag layer to accelerate the association of platinum group metals with a collector material and formation of a recoverable layer of platinum group metals and collector material.
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Improving safety and security in platinum mining by utilizing the newest facial recognition technology; Leading the next boom Competitive Eastern Limb platinum supply; The development of a process flowsheet for the new Anglo Platinum, PPRust north concentrator, incorporating HPGR technology
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About 80% of the worlds' reserves for platinum group metals (PGMs) are in South Africa's Bushveld Igneous Complex. Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and …
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The process of bringing platinum from its ore state to a usable form is complex and requires significant technological intervention, but it starts with mining operations that target platinum-rich ore deposits. ... Platinum …
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The major portion of platinum and palladium produced today from primary sources originates from the Bushveld Igneous Complex in South Africa. The most important reefs mined are the Merensky, Upper Group Two (UG-2) and Platreef (Cramer, 2001).Ore grades range from 3 to 8 g/t PGM, with associated nickel and copper in the 0.1–0.2% range present mainly as …
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The Kell Process has been developed for extraction of platinum group metals (PGM) and base metals from sulfide flotation concentrates. The process has been successfully tested on several different ...
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Liquid-liquid extraction (LLE) of platinum is a most important topic in separation science. The platinum separation process is a challenging task to researchers. The present review article is the first discussion on LLE of platinum and the review pertains to the literature review on the LLE of platinum from acidic
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Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals
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Of the major South African PGM mining companies, Lonmin Platinum uses the precipitation process, Anglo Platinum the solvent extraction process, and Impala Platinum the ion-exchange process . The solvent extraction process is also used, by Johnson Matthey and Vale for instance. 6. Non-Smelter-Based Processes
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This property makes the flotation process the primary method used in platinum processing. Flotation process: 1 The ground pulp is first pretreated, the pH value is adjusted to 5, and the temperature is 25℃.
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An improved process which makes use of liquid–liquid extraction has been developed to a pilot plant stage, and this paper highlights some of the chemical and process principles that …
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Differences in the chemistry of PGM and base metals are emphasised as the latter are present in refinery liquors. Mechanisms of solvent extraction processes are discussed and related to PGM complex chemistry. Potential economic advantages for solvent extraction over conventional selective precipitation processes are considered.
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Electrolytic Extraction of Platinum Group Metals from Dissolver Solution of Purex Process Kenji KOIZUMI, Masaki OZAWA and Tomio KAWATA Power Reactor & Nuclear Fuel Development Corp.* Receired May 19, 1993 Revised july 30, 1993 KEYWORDS: electrolytic extraction, deposits, palladium, rhodium, ruthe· ...
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Example 2: the same process as in example 1 was carried out using group 2 to obtain platinum group mixed chloro complex acid pregnant solution with a slag rate of 83.6%, and the total extraction rate of platinum group was up to 94.8% by reduction extraction process and spectrophotometry detection, as compared with table 1.
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Kell hydrometallurgical process for extraction of platinum group metals and base metals from flotation concentrates by K.S. Liddell*, and M.D. Adams† Synopsis The Kell Process has been developed for the extraction of platinum group metals (PGMs)and base metals from sulphide flotation concentrates. The process has been successfully tested on ...
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From the outset Johnson Matthey has been associated with Rustenburg, first in developing methods for the extraction of the platinum metals from these ores, and thereafter as smelters and refiners of the output from the mines.
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Ionic liquids (ILs) with amino moieties were designed and synthesized as extractants for the selective extraction of platinum group metal …
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Platinum extraction begins with the mining of ore from the Earth's crust, a task that often involves deep underground mines. Due to platinum's dense location within certain geological formations, extracting this metal is …
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