Solid material comminution or disintegration – Processes – By utilizing kinetic energy of projected or suspended material
Patent
1990-03-08
1993-04-20
Gorski, Joseph M.
Solid material comminution or disintegration
Processes
By utilizing kinetic energy of projected or suspended material
241 18, 241 19, 241 23, 241DIG14, 241DIG37, B02C 2306, B02C 2324
Patent
active
052035115
ABSTRACT:
A method and apparatus for fine grinding materials normally difficult to grind at ambient temperature, e.g. plastic and elastomeric materials in a fluid classification type impact mill utilizing liquid cryogen to pre-cool the material to be ground, to cool the material and the mill during grinding and to recycle vaporized cryogen from the mill back into the mill as the medium for conveying material to be ground into the mill.
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patent: 3285523 (1966-11-01), Duyckinck et al.
patent: 3329350 (1967-07-01), Wisgerhof et al.
patent: 3965267 (1976-06-01), Davis
patent: 4641787 (1987-02-01), Petersen et al.
Anderson Arthur H.
Ondush Andrew P.
Ritter Richard D.
Air Products and Chemicals Inc.
Gorski Joseph M.
Marsh William F.
Simmons James C.
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