Patent ID: 8727247
Filing Date: 2014-05-20
Classification: B02C,B03B,B03C,C22B,Y02P

Abstract:
1. A method for extracting copper, comprising: a) inputting a copper cinder into a ball grinder to grind, screening in a high-frequency shale shaker, transferring resulting coarse grains to a first magnetic separator for a first magnetic separation to yield a copper concentrate I and magnetic minerals, and returning the magnetic minerals to the ball grinder; b) transferring resulting fine grains from the screening to a classifier to yield a deposited sand and an overflowing slurry, returning the deposited sand to the ball grinder, transferring the overflowing slurry to a flotation unit to yield a copper concentrate II and a gangue; c) transferring the gangue to a second magnetic separator for a second magnetic separation to separate a non-magnetic mineral from a magnetic mineral, transferring the non-magnetic mineral to a gravity concentrator to get a semi-qualified product, and transferring the semi-qualified product to a table concentrator to separate a copper concentration III from an unqualified product; and d) returning the unqualified product to the gravity concentrator, and discharging the unqualified product and the magnetic mineral from the second magnetic separator.