Method for increasing efficiency of grinding of ores,...

Details Method for increasing efficiency of grinding of ores,... Method for increasing efficiency of grinding of ores,...

2011-04-26

2011-04-26

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

C241S030000, C241S172000, C241S184000

Reexamination Certificate

active

07931218

ABSTRACT:
A method for reducing particle size of a particulate comprising feeding a feed material to a grinding mill having a power of at least 500 kW, the mill having a specific power draw of at least 50 kW per cubic meter of grinding volume of the mill and the grinding mill including a grinding media comprising particulate material having a specific gravity of not less than 2.4 tons/m3 and a particle size falling in the range of from about 0.8 to 8 mm, grinding the feed material in the grinding mill and removing a product from the grinding mill, the product having a particle size range such that D80 of the product is at least about 20 microns.

REFERENCES:
patent: 5085889 (1992-02-01), Platz et al.
patent: 5407140 (1995-04-01), Lofthouse et al.
patent: 5513806 (1996-05-01), Falcon-Steward
patent: 5797550 (1998-08-01), Woodall et al.
patent: 5984213 (1999-11-01), Woodall et al.
patent: 7431830 (2008-10-01), Cleminson et al.
patent: WO 2002/068333 (2002-09-01), None
Derwent Abstract Accession No. 2004-056307/06, Class A60 E33 JP 2003-305378 A (Kyoritsu Yogyo Genryo KK) Oct. 28, 2003.

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