MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Removal of Trace Impurity from Limestone Using Flotation Techniques
Masami TsunekawaYugo HonmaKyoungkeun YooNaoki HiroyoshiMayumi Ito
Author information
JOURNALS FREE ACCESS

2009 Volume 50 Issue 1 Pages 171-176

Details
Abstract

High grade limestone was obtained by removing trace impurities through reverse and carrier flotation techniques. A simple method for measuring the impurity content of limestone was developed by correlating the amount of impurities and the turbidity of suspensions of residue from limestone dissolved in 20% acetic acid.
Impurity removal more than 50% with limestone recovery better than 85% was obtained under suitable conditions by both reverse flotation and carrier flotation using sodium oleate (NaOl) and dodecylammonium acetate (DAA) as collectors. Limestone containing more than 0.15 mass% impurity was used as the carrier. These results suggest that limestone treated by flotation can be used as high quality limestone in paper manufacturing.

Information related to the author
© 2009 The Mining and Materials Processing Institute of Japan
Previous article Next article
feedback
Top