Patent ID: 6818042
Filing Date: 2004-11-16
Classification: C22B,Y02P

Abstract:
A method of concentrating a batch of particulate ore material in a slurry for separation of a smeltable concentrate comprising:providing a re-concentrator table arranged to separate concentrate ore at a concentrate discharge from middlings and tailings; setting the re-concentrator table such that the concentrate forms a smeltable concentrate and thus at least the middlings contain significant quantities of the concentrate to be collected; feeding the particular ore material to the table from feeding system; operating the re-concentrator table for a first period of time during which both the middlings and tailings are returned to the feeding system for recirculation to the re-concentrator table; after the first period, for a second period, continuing to operate the re-concentrator table while directing at least the tailings to discard; and collecting the concentrate ore.