Resources

1Boliden Mineral 2University of Queensland Julius Kruttschnitt Mineral Research Centre (JKMRC) 3Boliden Aitik The new Aitik autogenous grinding (AG) milling circuit was based on the successful original milling plant at Aitik, with a focus on low life-of-mine operating costs. At the heart of this is...
06-Jan-2020
Smaller scale beneficiation and concentration plants with a couple of hundred tonnes per hour capacity, as well as large concentrators like Cerro Verde, Mogalakwena, Boddington, Salobo, Sierra Gorda, and Karara have utilized high pressure grinding rolls (HPGR) technology and have operated successful...
06-Jan-2020
JSC AK Altynalmas engaged Esen Mining Consulting Pty Ltd (EMC) to conduct a drill-to-mill plant optimization project to determine what opportunities exist to increase the mill throughput and improve the overall mine and concentrator performance. The scope of the project included in-situ ore body cha...
06-Jan-2020
1JKMRC, Sustainable Minerals Institute, University of Queensland, 2Barrick Cortez Mine, Elko, Nevada, USA 3Hatch Engineering, JKTech In expanding the mine to process considerably more competent ore sources, this semi-autogenous-ball mill-crusher (SABC) circuit with a single ball mill is not just th...
06-Jan-2020
Newmont has a demonstrated history as a leading investor in comminution technology developments. Most notably the cornerstone high pressure grinding rolls (HPGR) demonstration plant at the Lone Tree operation in 2003, which contributed to paving the way for the subsequent acceptance of HPGR technolo...
06-Jan-2020
Assessment of comminution energy intensity has traditionally been confined to the crusher and mill motor power consumption. However, a measure of ancillary equipment power and the embodied energy consumed through media wear is required to compare disparate equipment types and circuit configurations...
06-Jan-2020
A comprehensive energy study was carried out for the Red Chris mill, which processes copper-gold ore at a rate of 30,000 tonnes per day (t/d) and is located in Northern British Columbia. The study focused on identifying opportunities for energy conservation in the semi-autogenous grinding (SAG)-ball...
06-Jan-2020
AG or SAG milling frequently becomes a bottle-neck in an operation as the generation of critical size pebbles and the subsequent required re-crushing of these results in an extra burden for the (S)AG mill in the form of a recirculating load of harder and more abrasive material. HPGRs are high capac...
06-Jan-2020
E Baawuah1, C Kelsey2, J R Kelly3, J Addai-Mensah4 and W Skinner5 Abstract Comminution continues to be the most capital intensive unit operation in mineral processing. The fundamental purpose of comminution is to liberate the valuable minerals so that they can be economically concentrated into sal...
16-Dec-2019
T. Robinson, B. Widdows and J. Rosenberg MetPlant 2019, September 9-10, Perth, Australia POSTER ABSTRACT Increasing mill availability is a key improvement to the productivity of most mine sites. Mills are often running at maximum capacity, consequently any downtime reduces the mine output. O...
25-Sep-2019
S.Morrell MetPlant 2019, September 9-10, Perth, Australia ABSTRACT Whether it is for the purposes of the design of new comminution circuit, a brownfield expansion or a geometallurgical program, one of the principal keys to success is to “know your orebody”. To do so requires the formulation and e...
24-Sep-2019
Graeme J. Jameson, Cagri Emer ABSTRACT A new froth flotation machine has been developed, known as the NovaCell, which can recover mineral particles over a wide particle size range, from the lower limit of flotation, to an upper limit which depends on the liberation characteristics of the ore. In a...
09-Jul-2019
F.P. van der Meer Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada ABSTRACT HPGRs operate in a wide array of applications in mining and minerals. These range from relatively coarse crushing of copper and gold ores at one end of the spectrum to the processing of fine iron...
28-Jun-2019
Y. Dumais, R. Lemire, T. Banerjee and H. Weitz Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada ABSTRACT Agnico Eagle LaRonde produces over 300,000 ounces of gold annually, along with silver, zinc and copper by-products. The LaRonde plant consists of a conventional SAG a...
28-Jun-2019
F.C.F. Batista, R. deS. Almeida, L. deA. Silva, T. Banerjee, D. Gudgeon CMP 2018, 23-25 January 2018, Ottawa, Canada ABSTRACT Yamana Chapada’s mine is one of the larger copper-gold mines in Brazil. The mine is located in Goias state, in the central part of Brazil. The mine has estimated Mineral R...
24-Apr-2019