Floatability of apatites and gangue minerals of an igneous phosphate ore

被引：29

作者：

Barros, Luiz A. F.

Ferreira, Eliomar E. ^{[1
]}

Peres, Antonio E. C. ^{[2
]}

机构：

[1] CVRD, BR-30310570 Belo Horizonte, MG, Brazil

[2] EEUFMG, BR-30160030 Belo Horizonte, MG, Brazil

来源：

MINERALS ENGINEERING | 2008年 / 21卷 / 12-14期

关键词：

Flotation reagents; Flotation collectors; Flotation depressants;

D O I：

10.1016/j.mineng.2008.04.012

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The presence of different apatite types is characteristic of igneous phosphate deposits. The flotation performances of primary and secondary apatites occurring in phoscorites, weathered phoscorites and pyroxenites were investigated. As a contribution towards the understanding of the behaviour of the flotation system, the major gangue minerals were also selected for the study: quartz, a pyroxene (augite), altered micas (vermiculite), calcite and dolomite. Zeta potential curves for all the above mentioned mineral species were determined as a function of pH, pCa and pMg. Microflotation experiments were performed in a modified Hallimond tube at different pH levels in the presence of sodium oleate as collector and corn starch as depressant. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：994 / 999

页数：6

共 14 条

[1]

BARROS LAF, 2006, THESIS CPGEM UFMG BE

[2]

Brandao P.R.G., 1982, THESIS U BRIT COLUMB, P175

[3]

Fuerstenau M.C., 1976, FLOTATION, V1, P148

[4] Interfering ions in the flotation of a phosphate ore in a batch column [J].

Guimaraes, RC ;

Peres, AEC .

MINERALS ENGINEERING, 1999, 12 (07) :757-768

[5]

HUNTER RJ, 1987, INTRO COLLOID SCI, V1

[6]

IWASAKI L, 1983, MINING ENG, P622

[7]

Leal LS, 2000, MINER ENG, V13, P1495

[8]

LEAL LS, 2002, STUDIES MECH SELECTI, P95

[9]

LECTURE G, 1983, SME AIME ANN M ATL G

[10]

LENHARO SLR, 1994, THESIS U SAO PAULO, P113

← 1 2 →