期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeps.2011.09.014
关键词
titano-magnetite; ilmenite; flotation; magnetic agglomeration
类别
资金
- National Natural Science Foundation of China [u0837602, 50964007]
- Natural Science Foundation of Yunnan Province [2008ZC019M]
The main utilization mode of titano-magnetite was firstly separating titano-magnetite by low intensity magnetic separation, then concentrating ilmenite from magnetic separation tailings. Magnetic separation tailings mainly contained ilmenite, but there was still a small quantity of titano-magnetite. Magnetic agglomeration of titano-magnetite occured because of existentence of remanence and pre-flotation grinding. It was found that titano-magnetite presented more optimal floatability than ilmenite. Therefore some gangues wrapped by titano-magnetite went into the floatation concentrate. In a word, titano-magnetite had negative effect on ilmenite floatation by decreasing grade and recovery of concentrate and increasing reagent consumption. The pre-removal of residual titano-magnetite before cleaning ilmenite from magnetic separation tailings by floatation was essential. (C) 2011 Published by Elsevier Ltd.
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