Platinum Group Extraction

  • Extraction Studies in the Platinum Metals Group.

    2020-10-13 · six platinum group metals only %% iridium and traces of platinum are extracted by ether from 6N hydrochloric acid. Discussing the role of extraction in analytical chemistry, Morrison (25) notes also that osmium is completely extracted from bromide solutions. Thrther, Morrison's section on extraction of coordination types lists platinumExtraction of Platinum Group Metals IntechOpen,2017-10-2 · Extraction of Platinum Group Metals IntechOpen 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 precious metals refinery.

  • Extraction and Refining of the Platinum Metals

    extraction consists essentially of enriching this matte to approximately 65 per cent content of platinum metals and then treating this concentrate with acids to separate the individual platinum group metals from each other, followed by final refining. Operations to achieve The solvent extraction of platinum-group metals and ,1973-1-1 · Extraction of platinum with 2-mercaptobenzothiazole and tin(II) chloride The effect of tin(II) chloride solution on the extraction of the platinum- 2-mercaptobenzothiazole complex was investigated at different acidities Platinum (l mg) solution and 10 nil of reagent solution were mixed, and 20 drops of 20% tin(II) chloride solution in hydrochloric acid were added.

  • Solvent extraction in platinum group metal processing

    Solvent extraction in platinum group metal processing Michael J. Cleare,Johnson Matthey Research Centre, Blounts Court, Sonning Common, Reading, Berkshire RG4 9NHProcess for extraction of platinum group metals from,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 platinum group metals are

  • US4685963A Process for the extraction of platinum

    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.Extraction of Gold from Platinum Group Metal Ores,2016-1-1 · Gold is typically associated with platinum group metal (PGM) ores and is ultimately recovered in the precious metals refineries. This chapter summarizes the extraction and refining of gold from PGM-bearing concentrates and secondary materials.

  • Ionic Liquids with Amino Moieties: Selective and

    2019-3-16 · Ionic liquids (ILs) with amino moieties were designed and synthesized as extractants for the selective extraction of platinum group metal (PGM) ions into IL phases from mixed aqueous HCl solutions with PGM and other transition metal ions. The loaded PGM ions in the IL phase were successfully back-extracted into an ammonia solution.[PDF] Extraction And Refining Of The Platinum Group ,Extraction of Platinum Group Metals Book Description : 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 precious metals refinery. Due to increasing chrome content in the feed and the

  • Extraction of platinum-group metals from chloride

    Literature data are given on the extraction of platinum-group metals from hydrochloric acid solutions by salts of quaternary ammonium bases, as well as the authors’ data on the binary extraction of platinum metals from chloride solutions. The possibility is shown of using binary extractants based on quaternary ammonium bases (QABs) for efficient extraction and separation of platinum-groupCommercial Processes for the Extraction of Platinum ,2018-1-6 · Chen J, Huang K (2006) A new technique for extraction of platinum group metals by pressure cyanidation. Hydrometallurgy 82:164–171 CrossRef Google Scholar. 14. Eksteen JJ (2011) A mechanistic model to predict matte temperatures during the smelting of UG2-rich blends of platinum group

  • US4685963A Process for the extraction of platinum

    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.Efficient Chloride Salt Extraction of Platinum Group,2018-1-3 · We show that platinum (Pt) and palladium (Pd) can be efficiently removed from spent catalytic converters by means of a sintering process involving chloride salts. For Pt, mixing the crushed catalyst in an aqueous solution of chloride salts at catalyst/salt weight ratios ranging from 2.5 to 6.7, followed by drying, and 2-h sintering in the reactor furnace at 1100 °C, results in extraction

  • Recent Research in Solvent Extraction of Platinum

    Abstract. Most of the refineries for platinum group metals (PGMs) in Japan have adopted solvent extraction methods for mutual separation of PGMs. Few effective extractants for industrial use have been found although some industrial processes were established in 1970's. Recently, some compounds have been reported as candidates for practical PGM[PDF] Separating the Platinum Group Metals by Liquid,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. A t present the final re.fining stage that produces the individual platinum group metals is carried out by selective precipitation from a solution of mixed platinum group metals, but this is inefficient as far as the

  • Platinum group chemical element group Britannica

    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 [PDF] eBook Chemistry Of The Platinum Group Metals,1991-9-13 · The book covers recent developments in the chemistry of the six platinum group metals, namely, platinum, palladium, rhodium, iridium, ruthenium and osmium. The material falls into three broad areas. Firstly, the occurrence, extraction and use of the metals, especially in catalysis, electrochemistry, energy and electronics.

  • Aspects of iridium extraction from chloride solutions

    2021-6-28 · platinum metals in the form of complex chlorides may present in product solutions. In this connection, the prob-lem of extraction of platinum group metals from multi-component chloride solutions, especially iridium due to its kinetic inertness, is of particular interest [15]. The for-mation of kinetically inert complexes by iridium makes itExtraction of platinum-group metals from chloride,Literature data are given on the extraction of platinum-group metals from hydrochloric acid solutions by salts of quaternary ammonium bases, as well as the authors’ data on the binary extraction of platinum metals from chloride solutions. The possibility is shown of using binary extractants based on quaternary ammonium bases (QABs) for efficient extraction and separation of platinum-group

  • Platinum group metals extraction resin of

    Platinum group metals, also known as platinum group elements. It includes six metal elements of platinum (Pt), palladium (Pd), osmium (Os), iridium (Ir), yttrium (Ru), and rhenium (Rh), which are in the 5th and 6th cycles of the periodic table. The elements of this family are widely used in gemology.Process for extraction of platinum group metals from,Process for extraction of platinum group metals from chromite-bearing ore . United States Patent 4295881 . Abstract: 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

  • Direct Extraction of Platinum Group Metals from Nitric

    2017-12-22 · Direct extraction of platinum group metals (PGMs) from nitric acid solutions by using the phase transition phenomenon of thermoresponsive poly(N-isopropylacrylamide) (PNIPAAm) were realized.The trivalent PGMs such as rhodium and ruthenium could be extracted onto PNIPAAm gel as the dissociated cationic complexes with hydrophobic soft donor ligands by controlling just temperatures Method for the selective extraction of platinum group,The technical result of the invention is the simplification of the method of producing platinum group metals from copper and Nickel sludge, increasing the purity of metals to 99.95-of 99.98%, as well as the opportunity to obtain separate platinum group metals in a single technological cycle of processing of

  • Solvent extraction of platinum group metals Matthey

    Solvent extraction of platinum group metals . United States Patent 4382067 . Abstract: This invention relates to the separation and purification of the platinum group metals; more particularly it relates to the separation of mixtures of Pt and/or Pd from Rh and/or Ru. In more detail, the present invention relates to a process for the separationRecent Research in Solvent Extraction of Platinum ,Abstract. Most of the refineries for platinum group metals (PGMs) in Japan have adopted solvent extraction methods for mutual separation of PGMs. Few effective extractants for industrial use have been found although some industrial processes were established in 1970's. Recently, some compounds have been reported as candidates for practical PGM

  • Platinum group chemical element group Britannica

    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 [PDF] eBook Chemistry Of The Platinum Group Metals,1991-9-13 · The book covers recent developments in the chemistry of the six platinum group metals, namely, platinum, palladium, rhodium, iridium, ruthenium and osmium. The material falls into three broad areas. Firstly, the occurrence, extraction and use of the metals, especially in catalysis, electrochemistry, energy and electronics.

  • Aspects of iridium extraction from chloride solutions

    2021-6-28 · platinum metals in the form of complex chlorides may present in product solutions. In this connection, the prob-lem of extraction of platinum group metals from multi-component chloride solutions, especially iridium due to its kinetic inertness, is of particular interest [15]. The for-mation of kinetically inert complexes by iridium makes it,