platinum group methods

What Are Some Identifying Marks on a Platinum Ring?

The platinum group of metals (PGM) are platinum, iridium, palladium, ruthenium, rhodium and osmium. The major platinum jewelry maker and consumer markets today are China, Japan and the United States. Platinum rings and ornaments date more than 2,000 years, and the culture of platinum ring-making over the centuries has led to various traditions Get price

OSA

Platinum, palladium, rhodium, ruthenium, iridium, and gold are determined by direct spectrographic analysis of a fire-assay silver bead. Fire-assay methods and standards preparation are described. The fire-assay bead is placed into a graphite electrode containing 3 mg of (NH4)2OsCl6 and arced at 15 A dc in an argon-oxygen atmosphere. With the methods outlined, detection limits for a 15-g Get price

History – Omni Methods Group

2018 We started holding alumni "Platinum" retreats for members who were post-tenure. 2019 We changed our name to the Omni Methods Group to reflect our growing interest in a wide variety of quantitative methods across the social, computer, and natural sciences. We also added a biweekly reading group to discuss new methods papers written by Get price

Beneficiation and Extractive Metallurgy of PGE

The terms PGE (Platinum Group Elements) and PGM (Platinum Group . Minerals) are often used interchangeably, and incorrectly, in the processing and metallurgical literature. The terminology is confused further by PGM being referred to as platinum group metals (which is strictly correct) but often leads to the abbreviation of PGM, which refers Get price

Effective Method for the Platinum Group Metals Extracting

The team of authors described a solution to the problem of developing a fundamentally new technology for the industrial processing of spent diesel automotive catalysts containing platinum group metals (PGM) and SiC carrier, which has such advantages as carrying out a full processing cycle in one hardware module. The processing of SiC catalyst is extremely difficult by pyrometallurgical methods Get price

Tharisa Mine

The mine, which contains platinum group metals (PGMs) and chrome concentrates, began first production in November 2009. The Tharisa Mine produced 143,600 ounces (oz) of contained PGMs (5PGE +Au) and 1.3 million tons (Mt) of chrome concentrates including 323,100t of specialty-grade concentrates in 2017. Get price

US4337226A

The residue is then leached with a solution comprising sulfuric acid and NaOCl or H 2 O 2 to extract platinum, palladium, copper and gold. US4337226A - Recovery of platinum-group metals from ores - Google Patents Recovery of platinum-group metals from ores Download PDF Info Publication number US4337226A. US4337226A US06 Get price

Chapter 6.11 Platinum

platinum, the chlorides (+2 and +4), the oxide, and also the sulfate and nitrate. Analytical methods for platinum have been reviewed (1). Neutron activation analysis is a sensitive method for the detection of platinum in plants, rocks and soils. Atomic absorption Get price

Platreef Project

The estimated thickness of the mineralized reef (T1 T2 mineralized zones) at Shaft 1 is 26 metres, with grades of platinum-group metals ranging up to 11 grams per tonne (g/t) 3PE (platinum, palladium and rhodium) plus gold, as well as significant quantities of nickel and copper. The 26-metre intersection will yield approximately 3,000 tonnes Get price

Platinum Exploration – Bauba Platinum

The Bauba Platinum Project, a high-quality platinum group metals (PGM) prospecting project, is situated within a prime segment of the Eastern Limb of the Bushveld Igneous Complex. The project lies in the heart of the world's best-known platinum region, where a number of neighbouring companies are prospecting and mining platinum group elements Get price

Metal Analysis / Mineral Analysis / Gold Assay Office

Precious Metals and Platinum Group Metals Analysis Alex Stewart International provides precious metal analysis, precious metal inspection, weighing and sampling services at major precious metal refineries supported by Alex Stewart International's worldwide inspection offices and laboratories in Africa, Americas, Asia, Australia and Europe. Alex Stewart International are accredited to carry out Get price

Nuclear analytical methods for platinum group elements

Nuclear analytical methods for platinum group elements. Vienna : International Atomic Energy Agency, 2005 (OCoLC)607229889: Material Type: Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors: International Atomic Energy Agency. ISBN: 9201024053 9789201024053: OCLC Number: 61166841: Get price

Separation and purification of platinum group metals and

Nov 25, 1975What we claim as new and desire to secure by Letters Patent is 1. In a method for separating palladium from a mixture of PGMs (platinum group metals), which contains palladium and at least one other PGM, by precipitating the palladium with dimethylglyoxime from a solution of the mixture, the improvement wherein (a) the solution is that of amine complexes (formed in solution) of the metals Get price

How to Identify Platinum in Ore Deposits

Platinum flakes can be recovered through gravel washings, shaking tables and other methods. Generally, platinum grains require microscopy for identification from alluvial deposits. The mineral sperrylite, in nickel deposits, also provides a source of platinum in Ontario. Get price

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 Get price

Platreef Project

The estimated thickness of the mineralized reef (T1 T2 mineralized zones) at Shaft 1 is 26 metres, with grades of platinum-group metals ranging up to 11 grams per tonne (g/t) 3PE (platinum, palladium and rhodium) plus gold, as well as significant quantities of nickel and copper. The 26-metre intersection will yield approximately 3,000 tonnes Get price

Platinum group

Virtually all platinum-group metals are recovered from copper or nickel sulfide minerals, which are concentrated by flotation separation. Smelting of the concentrate produces a matte that is leached of copper and nickel sulfides in an autoclave. The solid leach residue contains 15 Get price

Review of gold and platinum group element (PGE) indicator

ABSTRACT For gold deposits, varying combinations of gold grains, sulphides, platinum-group minerals (PGM), tellurides, scheelite and rutile, and some secondary minerals are useful indicator minerals depending on the deposit type, bedrock geology and weathering regime. Gold grain size, shape, and chemical composition for a variety of sediment types, including stream and glacial sediments, have Get price

METHOD FOR PLATINUM GROUP METALS RECOVERY FROM

Aug 22, 2019The method includes subjecting the catalyst particulate material in the reaction zone at a predetermined temperature for a predetermined time period in contact with solid chlorine-containing material and solid silicon-containing material to obtain volatile platinum group metal-containing chloride product, and cooling to convert the product into Get price

Selective Recovery of Platinum Group Metals from Spent

Selective recovery of platinum group metals (PGMs), such as Pd, Pt, and Rh, from spent automobile catalyst has been investigated by integrated ion exchange method using dihexyl sulfide (DHS) impregnated resin and commercial weak anion exchange resin (Diaion WA-21) as adsorbents. Batchwise adsorption revealed that the DHS impregnated resin possesses the selective adsorption ability for Pd Get price

Evaluating the abnormal ossification in tibiotarsi of

Platinum group metals (PGMs), i.e., palladium (Pd), platinum (Pt) and rhodium (Rh), are found at pollutant levels in the environment and are known to accumulate in plant and animal tissues. However, little is known about PGM toxicity. Our previous studies showed that chick embryos exposed to PGM con Get price

Separating the Platinum Group Metals by Liquid–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. At present the final refining 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 degree Get price

Selective Recovery of Platinum Group Metals from Spent

Selective recovery of platinum group metals (PGMs), such as Pd, Pt, and Rh, from spent automobile catalyst has been investigated by integrated ion exchange method using dihexyl sulfide (DHS) impregnated resin and commercial weak anion exchange resin (Diaion WA-21) as adsorbents. Batchwise adsorption revealed that the DHS impregnated resin possesses the selective adsorption ability for Pd Get price

International Platinum Group Metal Association (IPA

Sampling of Platinum in Workplace Atmospheres Background This method was developed by the IPA Health Science Research Group in collaboration with the University of Wisconsin, Madison, USA by reviewing the available equipment and testing and improving the limits of detection. The method can be used for short-term task (15 minutes) up to 8 Get price

Platinum Group Metals

Oct 17, 2019The location of the platinum group metals in the periodic table of the elements. Platinum is a hard, malleable, and ductile metal whilst osmium and iridium are hard and brittle. Actually, platinum has a slightly harder than pure iron. The platinum group metals are among the rarest and most precious metals known. Osmium, iridium, and platinum Get price

US4295881A

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 Get price

PAPER OPEN ACCESS Related content Methods for recovering

Methods for recovering precious metals from industrial waste L Canda1, T Hepu. t. 1. and E Ardelean platinum group metals from catalytic converters, catalysts for the refining of crude oil, industrial catalysts, nitric acid manufacturing plant, the carbon-based catalyst, e-waste. An important aspect is the economic viability of recycling Get price

Platinum Group Metals

Platinum Group Metals Ltd. (TSX:PTM)(NYSE MKT:PLG) (Platinum Group or the Company) is taking steps to restructure its mining operations at the Maseve Mine in South Africa . The restructuring would involve a change in primary mining method and cost reductions to create a sustainable future for the mine. The changes are operationally driven to align costs with a more gradual ramp-up of Get price