Method of classifying and comminuting a gypsum ore or the like

Details Method of classifying and comminuting a gypsum ore or the like Method of classifying and comminuting a gypsum ore or the like

1980-11-24

1983-08-16

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

241 14, 241 24, 241 29, 241275, B02C 1906, B02C 2308

Patent

active

043986730

ABSTRACT:
A method is disclosed for separating a relatively soft component from a relatively hard component of mineral ore and then comminuting the softer component. The separation is performed by impact crushing the ore to reduce the softer component to particulate material of a smaller dimension than that of the harder component after which the components are separated by screening. The comminution is performed by further impact crushing the softer component to further reduce same and separating sufficiently small particles. Relatively large particles are also removed and the remainder of the softer component is recycled through the comminution process. The method is primarily applicable to the separation of chert from gypsum and comminuting the gypsum in the processing of gypsum ore.

REFERENCES:
patent: 1702940 (1929-02-01), Haire
patent: 2012155 (1935-08-01), Behnke
patent: 3912174 (1975-10-01), Karpinski et al.

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