There is plenty of interesting material on grinding in the Outokumpu Grinding Technologies Brochure. I quote & edit from their website to give you a bit of news about their successes:

Outokumpu has made four new contracts worth over EUR 20 million including:

  • SAG and ball mills for First Quantum Minerals' (FQM) Frontier project in the Democratic Republic of Congo. Outokumpu supplied a comprehensive package of grinding, thickening and flotation technology worth more than EUR 17 million.
  • A ball mill for AngloGold Ashanti's Cuiaba project in Brazil. They will supply a 4000 kW shell supported ball mill. The Cuiaba Expansion Project will increase the mine's gold production from 190,000 ounces per year to 250,000 ounces per year.
  • A dry grinding circuit for the BPR Bechtel's UTB project in Canada. Outokumpu will supply a complete dry grinding circuit to process spent pot liner, due for delivery to site in late 2006.
  • A ball mill at LionOre Mining's Maggie Hays project in Western Australia. The turnkey contract for Maggie Hays consists of one overflow discharge ball mill and it includes mechanical and electrical design, supply, delivery, installation and commissioning of the mill.

Here is how they describe themselves:

Outokumpu operates in some 30 countries and employs 11 000 people. In 2005, the Group's sales were EUR 5.6 billion, of which some 95% is generated outside Finland. The Group's headquarters are located in Espoo, Finland.

Outokumpu Technology offers a total minerals processing solution. We have over 50 years experience in Outokumpu's mines and concentrators. We provide integrated process design, equipment supply, related engineering, project management and start-up, training as well as comprehensive customer service.

To view their brochure on Flotation, click here.