초록 ▼

Sedimentation classification of particulate material in liquid dispersion. The dispersion is centrifuged in a tubular vessel comprising at least two neighboring compartments communicating via at least one opening which may be capillary. The lowermost compartment has a sealed bottom and the uppermost

Sedimentation classification of particulate material in liquid dispersion. The dispersion is centrifuged in a tubular vessel comprising at least two neighboring compartments communicating via at least one opening which may be capillary. The lowermost compartment has a sealed bottom and the uppermost has an open upper end. Upon completion of the centrifugation a liquid fraction with dispersed particulate material is decanted from the uppermost compartment. Useful products may also be recovered from other compartments.

대표청구항 ▼

A method of classification by centrifugation of particulate material in liquid dispersion with at least two fractions, characterized by: (i) providing a tubular vessel comprising at least two aligned coaxial compartments with each two neighbouring compartments communicating via at least one opening,

A method of classification by centrifugation of particulate material in liquid dispersion with at least two fractions, characterized by: (i) providing a tubular vessel comprising at least two aligned coaxial compartments with each two neighbouring compartments communicating via at least one opening, said tubular vessel having a first extreme compartment with a sealed bottom and a second extreme compartment with an open end; (ii) charging a working liquid into said tubular vessel via said second extreme compartment thereof so as to fill completely said first extreme compartment, said working liquid having a density intermediate the densities of said at least two particulate material fractions to be classified; (iii) charging said particulate material in liquid dispersion into said vessel via said second extreme compartment; (iv) subjecting the so-charged vessel to centrifugation, thereby to cause a heaviest fraction of said particulate material to migrate axially into said first extreme compartment; and (v) decanting a liquid fraction with particulate material dispersed therein from said second extreme compartment.