Platinum Group Ore Grinding
Characterizing the behaviour of platinum group minerals
2021-6-1 · The methodology is illustrated on the grinding circuit at Vale’s Clarabelle mill (Sudbury, Canada). As an example, GRPGM for platinum (Pt) in the ball mill-cyclone circulating load was about 80%. Quantifying the content of gravity recoverable platinum group minerals in ore samples. Miner. Eng., 22 (3) (2009), pp. 304-310. Article DownloadCharacterizing the behaviour of platinum group minerals ,A protocol for predicting gravity recovery of platinum group minerals (PGMs) in grinding circuits is being developed based on that for gravity-recoverable gold (GRG) (Laplante et al., 1990, Banisi et al., 1991, Laplante et al., 1995, Putz et al., 1993, Woodcock, 1994, Noaparast, 1996, Xiao, 2001). Prior tests at Clarabelle had shown an ore
Effect of different grinding media composition on the
2018-8-1 · In the present study, the effect of using different grinding media, viz, ceramic (CE), forged steel (FS), 15% Cr steel (CS), stainless steel (SS) and a mixture of stainless steel and 15% Cr steel balls (50:50) (SS + CS) were investigated using a Platinum Group Metal (PGM) ore, UG2. Test work was conducted using a laboratory scale horizontalScale-up of batch grinding data for simulation of industrial ,Request PDF On Aug 1, 2014, Ngonidzashe Chimwani and others published Scale-up of batch grinding data for simulation of industrial milling of platinum group minerals ore
Platinum-Group Metal Ores an overview ScienceDirect
This chapter describes the production of concentrates containing the platinum-group metals (PGMs). South Africa is the largest primary producer of PGMs followed by Russia. South African ores typically contain 3–4 g/tonne of PGM ore, which becomes 100–200 g/tonne after flotation. There are two main types of ores namely; feldspathic(PDF) Effects of high pressure grinding rolls on platinum ,2022-4-17 · For Merensky and UG2 ore on the other hand, the most energy effi cient operation was at the higher specifi c grinding force of 7.5N/mm2 and the zero gap of 1.5 mm.
Direct leach approaches to Platinum Group Metal (PGM)
International PGM Technologies, to recover platinum group metals, gold and base metals such as Cu, Ni and Co from a variety of high and low-grade 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. Pyrometallurgical and hydrometallurgical methods are both used in the industry, spanning techniques
Platinum group metals in SA
2020-1-17 · UG2 ore. In the northern extension of the BIC the Platreef is found. Whereas the platinum palladium ratio in the Merensky and UG2 reefs is close to three to one, the two metals are found in equal measure in the Platreef deposits. Production Platinum group metal mines have expanded consistently over the past 10 years,XRF Helps Meet the Platinum Group Metals Mining ,2014-12-2 · Platinum and palladium occur in the highest quantities and are the most widely used. The other four PGMs are mined as by-products of platinum and palladium. The U.S. Geological Survey’s 2014 Platinum Group Elements Fact Sheet describes some of the physical qualities that make it so difficult to locate productive, mineable PGM deposits.
Recovery of Platinum Group Minerals from Grinding
2004-1-1 · "The adaptation to platinum-group minerals (PGMs) of a protocol developed to predict gold recovery by gravity is presented. The protocol is based on three different data sets: ore characterization of gravity-recoverable minerals, description of their behaviour in cyclones and ball mills, and performance of recovery units. Examples of these areScale-up of batch grinding data for simulation of industrial ,Request PDF On Aug 1, 2014, Ngonidzashe Chimwani and others published Scale-up of batch grinding data for simulation of industrial milling of platinum group minerals ore
A mineralogical perspective on the recovery of platinum
2018-6-11 · Platinum-group minerals at TRP occur in association with BMS, Typically, it is sufficient to mill MR ore to a grind size of 60 wt% passing 75 μm (Wiese et al. 2007), while UG2 requires a grind size of 70 to 80 wt% passing 75 μm (as the grain size of the BMS in UG2 is typically somewhat smaller than for the MR; Hay and Roy 2010). The(PDF) Effects of high pressure grinding rolls on platinum ,2022-4-17 · For Merensky and UG2 ore on the other hand, the most energy effi cient operation was at the higher specifi c grinding force of 7.5N/mm2 and the zero gap of 1.5 mm.
Direct leach approaches to Platinum Group Metal (PGM)
Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review. July 2015. Minerals Engineering 78. DOI: 10.1016/j.mineng.2015.04.015. Project: Leach Platinum Palladium Flotation,2017-6-24 · Most ore milling operations have work indices ranging from 10 to 12, with extremes between 8 and 22. Because most of the platinum-group bearing sulfides occurred as fine grains and required grinding to approximately 200-mesh for liberation, flotation was investigated as a means for concentrating the metal values.
Minerals Engineering International Online Commodities:
2022-3-8 · J.M. Mwase, J. Petersen, J.J. Eksteen, A conceptual flowsheet for heap leaching of platinum group metals (PGMs) from a low-grade ore concentrate, Hydrometallurgy, Vol. 111-112, 2012 P.P. Sun, M.S. Lee, Separation of Pt from hydrochloric acid leaching solution of spent catalysts by solvent extraction and ion exchange,Hydrometallurgy,Vol. 110What Are Platinum Group Metals (PGMs)? ThoughtCo,2018-12-10 · The platinum group metals (PGMs) are six transitional metal elements that are chemically, physically, and anatomically similar. The PGMs are the densest known metal elements. Exceptionally rare, the six metals naturally occur in the same ore bodies. They are highly durable and, due to their high value, often recycled, giving them long life cycles.
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Ore Deposits of the Platinum-Group Elements Elements
The formation of ore deposits of the platinum-group elements (PGE) requires that their concentrations be raised about four orders of magnitude above typical continental crustal abundances. Such extreme enrichment relies principally on the extraction capacity of sulfide liquid, which sequesters the PGE from silicate magmas.IMAGING TECHNOLOGIES TO UNDERSTAND GRINDING ,2013-10-25 · distribution in the grinding process. The study focuses on the particular case of an Upper Group 2 (UG-2) platinum ore concentrator. Due to the very low grade of sulphide and PGM (Platinum group metals) in UG-2, grinding mechanisms are entirely control by gangue minerals. These two minerals have contrasted properties and PGM content
Process for extraction of platinum group metals from
1. A process for recovering platinum group metals from chromite-bearing ores, comprising the steps of: (a) subdividing chromite-bearing ore containing one or more platinum group metals; (b) subjecting a slurry of said subdivided ore to high intensity magnetic force to separate said ore into a magnetic fraction containing a substantial quantityRecovery platinum group metals from oxides ores BHP ,1992-6-10 · A method is provided for recovering at least one platinum group metal from an ore containing the same. The method comprises reducing the particle size of the ore to provide the platinum group metal in a leachable condition following which the ore is subjected to leaching with a sulfuric acid solution maintained at a pH of less than 1 during leaching.
Platinum group metals in SA
2020-1-17 · UG2 ore. In the northern extension of the BIC the Platreef is found. Whereas the platinum palladium ratio in the Merensky and UG2 reefs is close to three to one, the two metals are found in equal measure in the Platreef deposits. Production Platinum group metal mines have expanded consistently over the past 10 years,PGM Ore Processing at Impala's UG-2 Concentrator SGS,(platinum group minerals) in the UG-2 plant feed, the remainder largely being alloys of iron, lead, arsenic and antimony, or tellurides. As is typical of such ores, UG-2 platinum group mineralisation is highly complex. From the metallurgical perspective, however, PGM speciation is a minor issue as it tends not to dictate floatability.
Metals Free Full-Text Refining Approaches in the
2018-2-28 · Mineable platinum group metal (PGM) deposits are rare and found in relatively few areas of the world. At the same time, the use of PGM is predicted to expand in green technology and energy applications, and PGMs are consequently currently listed as European Union critical metals. Increased mineralogical complexity, lower grade ores, and recent PGM production Ore Dressing Platinum Process Of Extraction Grinding Sale ,2021-6-30 · The Great Dyke Zimbabwe contains over 800 million ounces of platinum and approximately 20 million ounces of rhodium. However about 10 of the ore is oxidized and cannot be processed with current recovery methods. A conventional flotation-smelting process has been proposed to recover the platinum group metal PGM values from the sulfide ores.
Platinum Palladium Flotation
2017-6-24 · Most ore milling operations have work indices ranging from 10 to 12, with extremes between 8 and 22. Because most of the platinum-group bearing sulfides occurred as fine grains and required grinding to approximately 200 Chemical and Mineralogical Mapping of Platinum‐Group ,2021-5-7 · Two ore samples from the platinum-group elements (PGE) Lac des Îles mine (Ontario, Canada) were analysed both by LIBS and µ-XRF. The fast mineralogical and elemental mapping provided by LIBS allowed the identification of four major silicate phases (chlorite, bytownite, actinolite, hornblende) and four minor sulfide phases (Pd-bearing
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