Influence of sodium silicate modulus on iron ore flotation with sodium oleate

被引：26

作者：

Arantes, R. S. ^{[1
]}

Lima, R. M. F. ^{[1
]}

机构：

[1] Univ Fed Ouro Preto, Dept Min Engn, BR-35400000 Ouro Preto, MG, Brazil

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2013年 / 125卷

关键词：

Iron ore; Sodium silicate modulus; Sodium oleate; flotation; OLEIC-ACID; SI-29; NMR; EQUILIBRIUM; HEMATITE;

D O I：

10.1016/j.minpro.2013.09.002

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper presents the influence of sodium silicate modulus on iron ore flotation with sodium oleate collector. Bench flotation tests were performed at pH 7 with actual iron ore from Quadrilatero Ferrifero, Brazil, with 42.8% Fe and 37.2% SiO2. Iron recovery averaged above 90% and the Fe contents in the concentrate were above 55%. The highest values of Fe grade and lowest of SiO2 were obtained with low levels of pulp density and sodium silicate dosage and with high level of sodium oleate. Increase of sodium silicate modulus had a small influence on response variables. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：157 / 160

页数：4

共 19 条

[1] Beneficiation of low grade Ghorabi iron ore, Bahariya Oasis, Egypt: a case study [J].

Al-Wakeel, M. ;

El-Rahman, M. .

TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY SECTION C-MINERAL PROCESSING AND EXTRACTIVE METALLURGY, 2006, 115 (04) :177-182

[2]

Araujo AC, 2003, MIN P EXT METALL T C, V112, pC44

[3] Anion distributions in sodium silicate solutions. Characterization by Si-29 NMR and infrared spectroscopies, and vapor phase osmometry [J].

Bass, JL ;

Turner, GL .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (50) :10638-10644

[4]

GUTIERREZ C, 1977, INT J MINER PROCESS, V4, P163

[5] BENEFICIATION OF IRON-ORE BY FLOTATION - REVIEW OF INDUSTRIAL AND POTENTIAL APPLICATIONS [J].

HOUOT, R .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 1983, 10 (03) :183-204

[6] EQUILIBRIUM STUDIES OF POLYANIONS .4. SILICATE IONS IN NACL MEDIUM [J].

INGRI, N .

ACTA CHEMICA SCANDINAVICA, 1959, 13 (04) :758-775

[7] ADSORPTION, PRECIPITATION, AND ELECTROKINETIC PROCESSES IN THE IRON-OXIDE (GOETHITE) OLEIC-ACID OLEATE SYSTEM [J].

JUNG, RF ;

JAMES, RO ;

HEALY, TW .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1987, 118 (02) :463-472

[8]

KULKARNI RD, 1975, ADV INTERFACIAL PHEN, V71, P124

[9]

Lagerstrom C., 1959, ACTA CHEM SCAND, V13, P722

[10]

Leja J., 2012, Surface Chemistry of Froth Flotation

← 1 2 →