Posts by Andrew Topf:

SAG mill control: It shouldn’t be that hard

SAG (semi-autogenous grinding) milling is arguably the most commonly used method of comminution in mineral processing. So why are so many SAG mills operating sub-optimally and why are they considered to be so difficult to control?
Andrew Topf | April 27, 2010 | 4:49 pm

Metal mimics bone

Materials World looks at a metal foam, coated with elements such as titanium, that could be used for biomedical implants.
Andrew Topf | April 27, 2010 | 4:33 pm

Up close with Gordon Pitts

CTV News asks the CEO of Saskatchewan Potash Corp. about the future of his company, the industry and the Canadian province hosting the world’s largest potash producer.
Andrew Topf | April 27, 2010 | 4:12 pm

Finning’s US$400 million Codelco sale

Finning International has announced that its South American division has received a Letter of Intent from Codelco that includes the supply of 20 Caterpillar 797 mining trucks and 15 pieces of support equipment, plus a maintenance and repair contract.
Andrew Topf | February 23, 2010 | 10:04 am

Rio Tinto expands Mine of the Future

Rio Tinto is expanding its Mine of the Future programme to develop new equipment and systems for deep underground mines and has selected three partners to work on the project.
Andrew Topf | February 23, 2010 | 10:03 am