Removing rutile from zircon electrostatically

Details Removing rutile from zircon electrostatically Removing rutile from zircon electrostatically

1977-02-25

1978-12-26

Hearn, Brian

Classifying, separating, and assorting solids

Electrostatic

209 11, 423 73, 423 80, B03C 700

Patent

active

041315391

ABSTRACT:
Titanium dioxide component is removed from a mineral containing titanium dioxide component which is difficult to be separated by the conventional electrostatic separation.
In the electrostatic separation from the mineral containing titanium dioxide component, the mineral is pretreated by a heat-treatment in an atmosphere of reducing, neutral or inert gas or a mixture thereof so as to change the electrostatic property of titanium dioxide and separating by an electrostatic separation.

REFERENCES:
patent: 959646 (1910-05-01), Swart
patent: 2180804 (1939-11-01), Fahrenwald et al.
patent: 2187637 (1940-01-01), Sutton et al.
patent: 2954278 (1960-09-01), Gaskin et al.
patent: 3137648 (1964-06-01), Fraas
"Electrostatic Separation of Granular Materials," Bull. 603, Bureau of Mines (F. Fraas), 1962, p. 102, U.S. Dept. of Int.
Bureau of Mines, Report of Investigations 5213, Apr. 1956 (F. Fraas), pp. 12-15, U.S. Dept. of Interior.

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