METHOD AND APPARATUS FOR SEPARATING PARTICULATE MATERIALS

摘要

A mixture of relatively malleable and relatively friable materials in particulate form within a given initial size range is separated into a fraction composed essentially of the malleable materials and a fraction composed essentially of the friable materials by first subjecting the mixture, in a vibratory mill, to forces effective to break up the particles of the friable fraction into sizes constituting a range substantially below the initial size range without substantially breaking up the particles of the malleable material and then separating the mixture according to size.