flotation of platinum group metal ore materials
The chemistry of pyrrhotite flotation using xanthate collectors is reviewed with respect to the processing of PGM ores and the recent results from captive bubble contact angle measurements at the University of Utah are presented. In some cases a low
The greatest value of froth flotation, versus other concentration approaches, is when a mine is processing fine-grained ores and for high-value sulfide ores like Copper, Copper-Molybdenum, and Platinum Group Metals. In these cases, the initial ore could contain between 0.1-0.5% of the desired metal or mineral and following the flotation process ...
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 …
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.
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 …
platinum group minerals PGMs In the flotation of PGMs, there are significant challenges arising from the need to treat everdecreasing grades of the relevant ore deposits The major challenge in the flotation of these ore bodies is the control and management of the . Live Chat
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. ...
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.
Platinum-group metals are found mainly in South Africa and Russia, and are mostly also produced in those countries. Extraction of platinum-group metals consists of the following steps: Mining, concentration, smelting/converting, leaching and refining to metal. About 500 tonnes of platinum-group metals are produced per year.
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 ...
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 ...
Treatment of Platinum Flotation Products ... Autoclave oxidative leaching of the initial material allows the non-ferrous metals to pass into solution from where they are recovered as a rich ... Fig. 8 Platinum group metals and their compounds in the final hydrochlorination cakes.
either as discrete platinum group minerals (PGM) included or attached to the sulphides, or in solid solution with these ... that the natural pH of the ore slurries is always alkaline, at a ... material is recovered by true flotation as well as by entrainment (Bradshaw et al., 2005).
Patent US6679383 - Flotation of platinum group metal ore ... The ore material in the feed to the flotation contains platinum group metal, meaning that the feed of the ore material contains one or more of platinum, palladium, rhodium, iridium, ruthenium and osmium. Get Price.
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.
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 (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table.These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5, 6 and 7).
THE FLOTATION OF HIGH TALC-CONTAINING ORE FROM THE GREAT DYKE OF ZIMBABWE by VELAPHI MOSES NASHWA Supervisors: Doctor M. K. G. Vermaak and Professor J. C. Davidtz Department of Materials Science and Metallurgical Engineering University of Pretoria Abstract This project investigates the optimisation of platinum-group metals recovery at the
Request PDF on ResearchGate | On Aug 1, 2018, Mohale Letseli and others published Characterisation and Flotation of a Weathered Platinum Group Metal Ore
metals has rarely been successful, although an individual platinum group metal may readily be replaced by another. Crocodile river mine (Eastplats) is currently treating UG-2 ore as the run of mine to recover PGMs and all ore is beneficiated using conventional crushing, milling, and flotation processes.
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
Oxygen pressure leaching–flotation joint process for Jinbaoshan platinum group minerals Trans. Nonferrous Met. Soc. China 29(2019) 1090−1098 Oxygen pressure leaching−flotation joint process for Jinbaoshan platinum group minerals Shuai RA...
Samples of low-grade flotation concentrate derived from Platreef ore were treated with a two-stage heap leach process to determine the potential to run this process parallel to to the convential concentrate-smelt-refine process for extracting platinum group metals, thereby adding value to the convential process via economic treatment of low-grade
Jan 25, 2013· Flotation of platinum group metal ore materials – Newmont USA … Jan 20, 2004 · Provided is a method involving flotation of a feed of platinum group metal ore material to … followed by concentration of the PGMs by flotation. »More detailed
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.
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 ...
platiniferous Cu-Ni ore from the Fedorovo-Panskoye deposit. The substitution of OPDTC for BX makes it possible to increase recovery of Pt by 13 %, Pd by 9 % and 2 – 4 times the noble metal content in the flotation concentrate. 1. Introduction Platiniferous copper-nickel ores are complicated mineral raw material with thin impregnations of
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
A flowsheet has been developed for the production of rich concentrates of precious and non-ferrous metals by a complex treatment of the flotation products from South African platinum-containing chrome ores. The procedure involves: autoclave leaching, roasting, hydrochlorination and precious metal recovery by sorption. Autoclave oxidative leaching of the initial material allows the non-ferrous ...
US6679383B2 US10/273,428 US27342802A US6679383B2 US 6679383 B2 US6679383 B2 US 6679383B2 US 27342802 A US27342802 A US 27342802A US 6679383 B2 US6679383 B2 US 6679383B2 Authority