Process for the extraction of platinum group metals

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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New method safely extracts gold, platinum, and other …

The study, led by chemical and biomolecular engineering professor Xiao Su, describes the first precious metal extraction and separation process fully powered by the inherent energy of electrochemical liquid-liquid extraction, or e …

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Extraction of platinum at high phase ratio via a rotating packed …

This work developed a rotating packed bed integrated with falling film (FF-RPB) to intensify the platinum extraction process. The organic phase consisting of TOA, TBP, and kerosene was broken into droplets by rotating packing. The aqueous phase, the Pt(IV) acidic chloride solution, flowed downward as liquid film on the FF-RPB's inner wall. ...

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Metals smelting-collection method for recycling of platinum group

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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Solvent Extraction as a Method of Recovery and …

The Pd extraction process is characterized by very high efficiency—usually less than 1 mg/L of Pd remains in the raffinate [ 3, 5, 7 ]. The recovery of Pd f rom extracts is car ried out ...

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EXTRACTION BY A PROCESS OF PLATINUM OF …

A novel process of chlorinating roasting followed by chlorinating leaching to extract platinum and gold from copper anode slimes was proposed in this research. Results of thermodynamic analysis and experimental research showed that the platinum was chlorinated into PtCl2while the gold existed in the form of metallic Au during the roasting ...

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Separation and purification of platinum group metals from …

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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Recovery and Then Individual Separation of Platinum, Palladium, …

The precipitate was filtered and then washed thoroughly with distilled water, and the filtrate was set aside to extract remaining Rh as a next step. The dried precipitate was calcined at 900°C where a Pd powder of more than 99.3% purity was obtained and stored in a closed vessel. The calcination process may be illustrated as follows:

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PGM Platinum Mining & Extraction

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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Extraction of platinum group metals from catalytic converters

Conventional PGM extraction from ores involves labor-intensive processes, underscoring the need for more ecologically sustainable, convenient methodologies for …

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Platinum Mining | Processing Equipment | Flow Chart

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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(PDF) Refining Approaches in the Platinum Group Metal

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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Figure 1. Flow chart of platinum extraction process

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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U.S. Patent for Process for extraction of platinum group metals …

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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Optimization of the hydrolysis cake filtration process in platinum

The results of studies on the separation of platinum(IV) ions by solvent extraction from aqueous solutions after leaching of spent catalysts have been reviewed.

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Platinum Group Elements Mineralogy, Beneficiation, and Extraction

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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CN1304612C

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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Extraction of platinum group metals from catalytic converters

Moreover, the inherent scarcity of platinum group metals in catalytic converters presents its own set of challenges during the extraction process [55,108,183]. 5.3.2 Pyrometallurgical method Pyrometallurgical processes, illustrated in Fig. 11, serve as one of the primary methods for processing platinum group metals from catalyst waste [ 106 ...

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(PDF) " PLATINUM EXTRACTION AND …

Solvent Extraction as a Method of Recovery and Separation of Platinum Group Metals

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How is Platinum mined? | Full Guide to Platinum …

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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Refining Approaches in the Platinum Group Metal Processing …

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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How do You extract platinum from catalytic converter?

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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The extractive metallurgy of South Africa's platinum ores

The extraction technology for platinum-group metals (PGMs) has changed dramatically in the last 80 years, and the changes are likely to continue for years to come.

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Extraction of platinum group metals from catalytic converters

The extraction of platinum group elements is a highly expensive process, emphasizing the need to achieve maximum extraction efficiency into the concentrate. The process of extracting PGMs involves several key steps.

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Extraction of Platinum Group Metals

Ionic liquids (ILs) with amino moieties were designed and synthesized as extractants for the selective extraction of platinum group metal …

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Electrolytic Extraction of Platinum Group Metals from …

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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Flow chart of platinum extraction process

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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Kell hydrometallurgical process for extraction of …

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 several different sulphide flotation concentrates, …

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Extraction of Platinum Group Metals

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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Solvent Extraction as a Method of Recovery and …

The extraction process can follow three main mechanisms:- ... Most research on the use of ionic liquids for the liquid extraction of platinum group metals focuses on the use of their dilute organic solutions, in which the role of …

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