Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1994-09-14
1996-04-16
Dayoan, D. Glenn
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209173, B03B 566
Patent
active
055073930
ABSTRACT:
A gravitational separation device is provided and the process is provided involving a packed column containing a packing material and having a device for vibrating the packed column and the particles. The gravitational separation device allows for efficient and effective separation of solid particles having different densities. The process preferably involves conditioning an aqueous pulp of mineral ore with a dispersant and feeding the dispersed aqueous pulp into an inlet into an intermediate section of the packed column and forming a high density bed of high density particles in a lower portion of the column, and forming a low density bed of low density particles in an upper portion of the column. Tailings are removed from the upper end of the column and concentrated mineral ore having reduced levels of gangue are removed from the bottom of the column. The device and process are especially useful in the separation of silica particles having small particle sizes from iron ore particles having small particle sizes.
REFERENCES:
patent: 3865315 (1975-02-01), Roberts et al.
patent: 3897331 (1975-07-01), Smith et al.
patent: 4111798 (1978-09-01), Peterson et al.
patent: 4592834 (1986-06-01), Yang
patent: 5392924 (1995-02-01), Hume
Conard Spencer D.
Dayoan D. Glenn
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