Table of Contents
Magnetic and Electrical Separation
Volume 10, Issue 2, Pages 121-130
http://dx.doi.org/10.1155/2000/75341

Research and Commercialisation of Treatment of Fine Ilmenite With Slon Magnetic Separators

Ganzhou Nonferrous Metallurgy Research Institute, 36 Qingnian Road, Jiangxi Province, Ganzhou 341000, China

Received 16 September 1999; Accepted 27 September 1999

Copyright © 2000 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The fine ilmenite material finer than 0.045mm at the Pang Zhi Hua Ilmenite Processing Plant was discarded for the lack of efficient processing equipment and method. The total recovery of ilmenite in the plant had been only about 17-20%. To increase the ilmenite recovery, numerous laboratory, pilot and commercial tests were conducted in 1995-1996. Finally, a magnetic separation-flotation flowsheet was chosen for the commercial test, in which the fine fraction was fed into 125 mm diameter cyclones for desliming. The underflow of the cyclones was then fed into the magnetic separation-flotation flowsheet. A SLon- 1500 vertical ring and pulsating high gradient magnetic separator was applied as a rougher and was followed by flotation as a cleaner. The overall results of the magnetic separationflotation flowsheet in the commercial test were: feed 11.03% TiO2, concentrate 47.36% TiO2, recovery 44.79% TiO2. The flowsheet of the commercial test has been used as a production process since 1997. The recovery accounted for about 12% TiO2 of the feed into the ilmenite processing plant.