METHOD OF FLOTATION OF COPPER-NICKEL SULFIDE CUPROUS ORES Russian patent published in 1999 - IPC

Abstract RU 2134616 C1

FIELD: mineral dressing. SUBSTANCE: invention relates to cuprous ores with complex mineralization and highly developed borders of sulfide and non- ore minerals, which are hard to concentrate as compared to other types of copper-nickel ores. Method includes grinding material, selectively floating copper minerals into copper concentrate using sulfhydryl collector, isolating nickel minerals from pulp into froth product and barren rock into reject. According to invention, starting material is conditioned in a low-alkali medium while simultaneously aerating pulp with oxygen-containing gas in presence of an inorganic sulfur-containing compound forming, upon pulp aeration, regulators - iron group substances - in amount ensuring copper-to-iron sulfide weight ratio in pulp 1:(1.5 to 30) at molecular oxygen-to-iron sulfide weight ratio 1:(20 to 350) for 10 to 60 min. EFFECT: increased isolation of non-ferrous metals, improved quality of concentrates, and reduced reject losses. 3 cl, 1 dwg, 4 tbl

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RU 2 134 616 C1

Authors

Zakharov B.A.

Pogosjants G.R.

Alekseeva L.I.

Jatsenko A.A.

Mal'Tsev N.A.

Galantseva T.V.

Matvienko Z.I.

Ovchinnikov A.V.

Rybas V.V.

Pladukhina N.V.

Bocharnikov S.A.

Ostrozhnaja E.E.

Malinovskaja I.N.

Dates

1999-08-20Published

1997-09-17Filed