Jan 20, 2004· The present invention provides a method involving flotation of platinum group metal ore materials in which a lead-containing activator reagent, and preferably also a xanthate collector reagent, are added to the platinum group metal ore material prior to and/or during flotation and the flotation is conducted using an oxygen-deficient flotation
The platinum-group metal content was more than twice that of a rougher concentrate, and the Al2O3 and CaO contents were significantly lower (see table 7). Because flotation concentrates would be subsequently treated by smelting-leaching or direct leaching techniques to recover platinum-group metals, impurity contents are an important consideration.
Hello, in the flotation of Platinum Group Metal Ores, is it considered wise or cost effective to introduce pH control? Is there any mine that mine PGMs that does pH control in their metallurgical plants?The reason why i ask is because i did some test works. I wanted to check the relations
Abstract In this paper, the effect of weathering on the mineralogy and flotation performance of a weathered Platinum group metal (PGM) ore was investigated. A comprehensive characterisation of the weathered ore was carried out, where physical, chemical, and mineralogical and liberation properties of the sample were determined.
In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of chromite in the concentrates can cause serious downstream processing problems and a
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
A conventional flotation-smelting process has been proposed to recover the platinum group metal (PGM) values from the sulfide ores. With the development of a low temperature roasting, acidic bromine leaching process by The Minerals Laboratory of BHP Minerals, substantial PGM recoveries from oxide and mixed oxide/sulfide ores are now possible.
Flotation of Platinum Group Metal Ores concentration of chromite and with alpine ultrafamic bodies. As a process of weathering, there is a marked change in Pt/(Pt–Pd) ratio as compared to the source becoming greatly increased in the former due to the greater ease with which Pd dissolves and is removed in a weathering enrichment.
Patent US4295881 Process for extraction of platinum group metals Oct 20, 1981 A process for treating chromite-bearing ores to obtain useful mineral values, ore to a flotation process to produce a concentrated fraction containing . and it is used for production of chromium metal
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 challenges associated with operating high chrome feed, alternative routes to smelting of PGM are
Frank K. Crundwell, William G. Davenport, in Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals, 2011. 1.1.2 Extraction of Nickel and Cobalt from Sulphide Ores. Sulphide ores were mostly created by (i) the intrusion of molten magma from the mantle into the crust of the earth and (ii) the formation of localized metal-rich sulphide ore bodies by sequential solidification and
Platinum group metals. (DMS) to reject waste material and increase the feed grade to the concentration plant; flotation of the ground ore to upgrade the PGM concentration and reject impurities, and chrome removal via DMS at any stage in the concentration process which would have a negative impact in the later smelting.
M.G. Aylmore, in Gold Ore Processing (Second Edition), 2016. 5.1.1 Platsol™ Process. The Platsol™ process was originally developed in collaboration with the University of British Columbia, Kane Consultants Ltd., and Lakefield Research in Canada for the treatment of flotation sulfide concentrate for Polymet Mining Company in Minnesota and was tested on similar types of concentrate materials.
The platinum group metals or PGMs are a set of six transition metals that share similar properties. They may be considered a subset of the precious metals. The platinum group metals are clustered together on the periodic table, plus these metals tend to be
Jan 25, 2013 · Froth flotation—A method of mineral concentration used in Flotation of platinum group metal ore platinum palladium and rhodium flotation Froth flotation Wikipedia, the free encyclopedia. Froth flotation is a process for selectively separating hydrophobic materials from
PLATINUM Disclaimer: This presentation has been prepared by Anglo American Platinum Limited (“Anglo American Platinum”) and comprises the written materials/slides for a presentation concerning Anglo American Platinum. By attending this presentation and/or reviewing the slides you agree to be bound by the following conditions.
THE PRIMARY PRODUCTION OF PLATINUM GROUP METALS (PGMs) Introduction The six platinum group metals (PGMs) occur together in nature alongside nickel and copper. Mineable deposits of PGMs are very rare, with annual production amounting to around 400 tonnes, several orders of magnitude lower than many common metals. Due to their economic values and
FLOTATION MATRIX 100 is designed to deliver a range of measurable results by taking into consideration the dynamic interaction of the ore body and plant characteristics with the chemicals including collectors in the flotation process. The benefits that can be experienced by following this approach are: Optimized reagent performance
Synopsis. As part of its strategic and critical minerals program, the U.S. Bureau of Mines investigated methods for beneficiating and recovering platinum-group metals (PGM) from ores found in the Stillwater Complex, the only primary resource of platinum-group metals located in the United States.
Sep 19, 2014· Foam flotation: The platinum ore is crushed and milled, which increases the surface area of the metal and making it easier to extract all the valuable metals. Froth flotation is a method of separating materials on the basis of their physical properties, for instance affinity for water or density.
Although studied by a number of English, French and Spanish chemists in the mid-18th century, Francois Chabaneau was the first to produce a pure sample of platinum metal in 1783. In 1801, Englishman William Wollaston discovered a method for effectively extracting the metal from ore, which is very similar to the process used today.
Investigation into the mineralogy and flotation performance of oxidised PGM ore. The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally
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 to 20 percent platinum-group metals.
The dispersed form of platinum group metals in platinum ores found as infinitesimally small impurities enclosed in the crystal lattice of ore and rock-forming minerals is of lesser importance. Primary deposits of platinum ores are platiniferous complex sulfide and platinum chromite ores in a variety of forms with massive and disseminated structure.
Sometimes gravity separation is employed prior to flotation; this results in a concentrate containing up to 50 percent platinum metals, making smelting unnecessary. Extraction and Refining The separation chemistry of the platinum-group metals is among the most complex and challenging of metal
Oct 11, 2013· Silver, Gold, and Platinum group metals ores are presented in this second video which educates viewers on exploration and mining of precious metals ores. This
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