Separation of ilmenite and rutile

Details Separation of ilmenite and rutile Separation of ilmenite and rutile

1978-02-21

1979-06-12

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 86, 423152, 209166, C01G 2304

Patent

active

041580419

ABSTRACT:
This invention relates to a process for separating rutile and ilmenite from ilmenite leach tails and is effected by treating the leach tails from an acidic leach to a flotation step whereby gangue is separated from the unreacted ilmenite and rutile. The latter is then roasted at an elevated temperature in a hydrous atmosphere to convert the ilmenite to a magnetic material. Thereafter the ilmenite may then be subjected to a magnetic separation whereby non-magnetic rutile may be recovered while the magnetic portion is recycled for further separation.

REFERENCES:
patent: 1696188 (1928-12-01), Campbell
patent: 1760992 (1930-06-01), Palmer
patent: 2257808 (1941-10-01), Phelps
patent: 2954278 (1960-09-01), Gaskin et al.
patent: 3112178 (1963-11-01), Judd
Taggart, A., Elements of Ore Dressing, John Wiley & Sons, Inc., N.Y. (1951), pp. 234, 258, 259, 267, 268.

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