СПОСОБ ОБОГАЩЕНИЯ ОКИСЛЕННЫХ НИКЕЛЕВЫХ РУД: патент на изобретение

Translated title of the contribution: METHOD OF DRESSING OXIDE NICKEL ORES: patent of invention

Василий Александрович Низов (Inventor), Альфит Рафитович Бакиров (Inventor), Валентин Николаевич Мащенко (Inventor)

Research output: Patent

Abstract

FIELD: process engineering.
SUBSTANCE: invention relates to ore dressing and may be used for processing oxide nickel ore to up performances in pyrometallurgical production of ferroalloys. Proposed method comprises grinding ore to 2.0-3.0-mm-size, thermal treatment of ground ore to 550-600°C for, at least one hour, magnetic separation of annealed ore to extract magnetic fraction, fractionation of nonmagnetic fraction in its upward flow at hydrodynamic conditions and flow speed of 30-50 m/h to extract fraction of minus 0.3 mm.
EFFECT: power and material savings, simplified process.
Translated title of the contributionMETHOD OF DRESSING OXIDE NICKEL ORES: patent of invention
Original languageRussian
Patent number2458742
IPCB03B 7/00,B03C 1/00,C22B 23/00
Filing date25/02/2011
Publication statusPublished - 20 Aug 2012

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