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2 458 742

(13)

(51)

IPC

B03B7/00(2006-01-01)

B03C1/00(2006-01-01)

C22B23/00(2006-01-01)

(21) (22)

Application

2011107516/03, 2011-02-25

(24)

Start date

2011-02-25

(22)

Actual filing date

2011-02-25

(45)

Published

2012-08-20

(72)

Inventor

Nizov Vasilij AleksandrovichBakirov Al'Fit RafitovichMashchenko Valentin Nikolaevich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Federal'Nyj Universitet Imeni Pervogo Prezidenta Rossii B.N. El'Tsina"

METHOD OF DRESSING OXIDE NICKEL ORES Russian patent published in 2012 - IPC B03B7/00 B03C1/00 C22B23/00

Abstract RU 2458742 C1

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.

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RU 2 458 742 C1

Authors

Nizov Vasilij Aleksandrovich

Bakirov Al'Fit Rafitovich

Mashchenko Valentin Nikolaevich

Dates

2012-08-20—Published

2011-02-25—Filed