Pilot plant trials of new gravity concentration equipment

• In this technical note, pilot-scale tests with two types of gravity concentrators, the Knelson separator and the Mark VIIA Reichert spiral concentrator are described. The experimental work was concentrated on the relatively untried Knelson separator. The materials tested have different concentration characteristics: one was an artificial ore with excellent liberation characteristics and a wide difference in density between valuable and gangue minerals; the others include a spiral concentrate containing gold from the gravity circuit of Boliden, Sweden, an old scheelite tailing from Yxsjoberg, Sweden, and an auriferous ore containing gold that had not been crushed to full liberation. The latter three materials contained other heavy minerals, e. g. pyrite, that can interfere with concentration.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)

Keyword

Mineral Processing

Mineralteknik

Publication and Content Type

ref (subject category)

art (subject category)