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HPGR-revolution in platinum? ResearchGate

The platinum industry, renowned for its historically conservative approach, has not been left behind with two significant new HPGR installations, one in Platreef application and one in UG2

Understanding the influence of HPGR on PGM

Due to the very fine grained nature and complexity of the platinum bearing ores from the Bushveld Complex in South Africa, numerous processing operations have investigated alternate comminution devices that can be used to liberate the platinum group minerals of the Merensky and UG2 ores at a coarser grind, at reduced energy consumption and increased throughput.

Effect of HPGR on platinum bearing ores and the

2021-1-31  Corpus ID: 110069051. Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill @inproceedings{Solomon2011EffectOH, title={Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill}, author={N. Solomon}, year={2011} }

thyssenkrupp next-generation high pressure grinding

2021-2-10  Platinum Group Metals; Products and Services; Tech news; thyssenkrupp’s next-generation high pressure grinding roll. Aug 17, 2020. 0. views. Improving efficiency, reliability and processes is an ongoing challenge in the mining industry. The new HPGR

Comparative study of the use of HPGR and conventional

2013-7-1  platinum group mineral (PGM) ore that were subjected to various comminution procedures, viz. HPGR and conventional crushing followed by either wet or dry milling using different media. Not all of these combinations were used for both ores. The relationship between the comminution processes and the flotation behaviour were analysed and attempts were

Perfecting Hard-Rock High Pressure Grinding

2020-4-8  Anglo Platinum’s Chris Rule and colleagues stated that the Polysius Polycom HPGR has come of age, offering appropriate roll wear-abatement technology and proving itself as an alternative comminution device for hard-rock applications.

HRC™ Series high pressure grinding rolls (HPGR)

HRC™ Series high pressure grinding rolls (HPGR) are used for particle reduction in mining and aggregates industries, especially in hard rock applications. TON HRC™ high pressure grinding rolls (HPGR) provide a step change in energy efficiency and helps to get more value from every ton of ore.

Enduron® HPGR Weir Group

We have extensive test facilities in Europe, Australia, North America and Latin America, and draw on practical data provided by our HPGR equipment deployed at sites across the globe. Applications . Coarse iron ore grinding and pellet feed; Secondary/tertiary grinding (phosphate, gold, copper, nickel, lead, zinc, chromite, platinum, vanadium

The development of a process flowsheet for the new

2016-2-16  Complex—the largest source of primary platinum group metals, PGMs, in the world. PGM mineralization in the area was first reported by Dr Hans Merensky in 1924. The operation is part of the Anglo Platinum operations Potgietersrust Platinums Limited, ‘PPL’, being a wholly owned subsidiary. The operations are situated on the

Comparative study of the use of HPGR and conventional

2013-7-1  platinum group mineral (PGM) ore that were subjected to various comminution procedures, viz. HPGR and conventional crushing followed by either wet or dry milling using different media. Not all of these combinations were used for both ores. The relationship between the comminution processes and the flotation behaviour were analysed and attempts were

Effect of HPGR on platinum bearing ores and the

Includes abstract.Includes bibliographical references.This thesis focuses on the application of the high pressure grinding rolls (HPGR) on platinum bearing ores Merensky, UG2 and Platreef. Conventional tumbling mills such as the ball mill that are typically applied on these ore types are highly energy intensive with a small percentage of the

7-10_Palm_p1077 AusIMM

The Effect of Using Different Comminution Procedures on the Flotation of Platinum Group Minerals The use of High Pressure Grinding Rollers (HPGR) has been widely reported to have major benefits in the treatment of minerals such as iron ore and diamonds.

Cost-effective pressure filtration for platinum concentrates

2011-1-27  platinum group metals (PGMs). The new regrind circuits utilize both vertical and horizontal Platinum installed the first HPGR in a UG2 concentrator in 20085. The first IsaMill™ installed by Anglo Platinum for mainstream regrinding was installed at the Western Limb

The development of a process flowsheet for the new

2016-2-16  Complex—the largest source of primary platinum group metals, PGMs, in the world. PGM mineralization in the area was first reported by Dr Hans Merensky in 1924. The operation is part of the Anglo Platinum operations Potgietersrust Platinums Limited, ‘PPL’, being a wholly owned subsidiary. The operations are situated on the

Perfecting Hard-Rock High Pressure Grinding

2020-4-8  The uptake of HPGR technology by metallic mineral processors has involved a number of suppliers but primarily KHD Humboldt Wedag and Polysius for the HPGR machines and ABB for the drive systems. Normally, it is the HPGR supplier’s prerogative to choose the drive supplier; the end user normally buys the HPGR with the drive systems included.

POTENTIAL CHANGES IN THE PHYSICAL BENEFICIATION

2016-2-16  the platinum group metal (PGM) minerals is not new. Fine milling of the tailings or the concentrate to increase recovery and/or grade has been successfully implemented at a number of platinum plants1. There may, however, be other technologies that can lead to cost reductions or improvements in grade and/or recovery. Costs and revenue

Improved yields Mineral Processing

More than 90 % of these mills have so far been installed in plants for processing platinum group metal ores (44 %), copper/gold ore and lead/zinc ore (24 % each). In ultrafine grinding applications IsaMills TM are up to 30 % more efficient than tower mills, which in turn are up to 30 % more efficient than conventional wet-process ball mills.

Mineral Processing and Extractive Metallurgy Review期刊

ABSTRACT The melting behavior of Platreef and UG–2 platinum group metal (PGM) concentrates was studied under conditions typically found in the black top of PGM smelters. In order to understand how the phase changes influence the separation between matte and slag, the concentrates were characterized before and after firing at eight temperatures from 800°C to 1480°C.

Page 1 Page 2 INTRODUCTION SAG Metallurgy OMC

2014-10-1  If a HPGR is identified as a likely option, an initial phase of testwork should be undertaken to obtain preliminary design information. This may only involve testing one or two major ore types, using a bench scale HPGR, together with a valid wear prediction test. Larger samples for pilot HPGR testing should only proceed if the circuit option is

Effect of HPGR on platinum bearing ores and the

Includes abstract.Includes bibliographical references.This thesis focuses on the application of the high pressure grinding rolls (HPGR) on platinum bearing ores Merensky, UG2 and Platreef. Conventional tumbling mills such as the ball mill that are typically applied on these ore types are highly energy intensive with a small percentage of the

A Geometallurgical Approach of the Copper-Nickel

2021-1-14  A Geometallurgical Approach of the Copper-Nickel-Platinum Group Elements Maturi Deposit, Minnesota, USA, Using Quantitative Mineralogy Twin Metals Minnesota LLC, (TMM) has recently completed a prefeasibility study evaluating the development and operation of an underground copper (Cu), nickel (Ni), platinum (Pt), palladium (Pd), and gold (Au

ABB to Revamp High Pressure Grinding Rolls Drive

ABB, the leading power and automation technology group, won an order to upgrade Anglo American Platinum’s high pressure grinding rolls (HPGR) drive system at the Mogalakwena North open-pit mine, South Africa. The contract was awarded in the second quarter of 2012.

thyssenkrupp navigates South Africa lockdown to

2021-2-17  thyssenkrupp navigates South Africa lockdown to replace platinum mine HPGR roll Posted by Daniel Gleeson on 23rd July 2020 As the COVID-19 pandemic tightens its grip, thyssenkrupp Industrial Solutions says it is assisting customers in maintaining operational efficiencies through sustainable service delivery and innovative technologies.

Cost-effective pressure filtration for platinum concentrates

2011-1-27  platinum group metals (PGMs). The new regrind circuits utilize both vertical and horizontal Platinum installed the first HPGR in a UG2 concentrator in 20085. The first IsaMill™ installed by Anglo Platinum for mainstream regrinding was installed at the Western Limb

Perfecting Hard-Rock High Pressure Grinding

2020-4-8  The uptake of HPGR technology by metallic mineral processors has involved a number of suppliers but primarily KHD Humboldt Wedag and Polysius for the HPGR machines and ABB for the drive systems. Normally, it is the HPGR supplier’s prerogative to choose the drive supplier; the end user normally buys the HPGR with the drive systems included.

POTENTIAL CHANGES IN THE PHYSICAL BENEFICIATION

2016-2-16  the platinum group metal (PGM) minerals is not new. Fine milling of the tailings or the concentrate to increase recovery and/or grade has been successfully implemented at a number of platinum plants1. There may, however, be other technologies that can lead to cost reductions or improvements in grade and/or recovery. Costs and revenue

Improved yields Mineral Processing

More than 90 % of these mills have so far been installed in plants for processing platinum group metal ores (44 %), copper/gold ore and lead/zinc ore (24 % each). In ultrafine grinding applications IsaMills TM are up to 30 % more efficient than tower mills, which in turn are up to 30 % more efficient than conventional wet-process ball mills.

Page 1 Page 2 INTRODUCTION SAG Metallurgy OMC

2014-10-1  If a HPGR is identified as a likely option, an initial phase of testwork should be undertaken to obtain preliminary design information. This may only involve testing one or two major ore types, using a bench scale HPGR, together with a valid wear prediction test. Larger samples for pilot HPGR testing should only proceed if the circuit option is

2020 PGM Concentrator flowsheet Proceedings

2012-10-2  C. Rule (Anglo American Platinum, South Africa) The PGM industry has in the last decade adopted significant new technologies in Concentrator flow sheet design. The drivers have been a combination of a major switch to UG2 and Platreef ore mining as Merensky reef declines in importance and the need for better extractions of PGMs as plant feed grades