Development of an environmentally safe gold extraction method from refractory ores using sodium thiosulfate as an extractant

Yu. V. Sharikov; Ilkka Turunen

Vol 215

Pages:

83-90

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Research article

Metallurgy and concentration

Development of an environmentally safe gold extraction method from refractory ores using sodium thiosulfate as an extractant

Authors:

Yu. V. Sharikov¹

Ilkka Turunen²

About authors

1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
2 — professor Lappeenranta University of Technology

Date submitted:

2014-11-01

Date accepted:

2015-01-02

Date published:

2015-10-26

Abstract

The article presents the results of a mathematical model development for the process of gold leaching from gold-containing ores and concentrates. A mathematical model has been developed by analyzing the chemistry of reactions and mass transfer processes. On the base of a kinetic extraction model and a hydrodynamic complete mixing model a mathematical model of thiosulfate leaching process in various types batch reactors, complete mixing flow process vessels and complete mixing reactor columns with different numbers of vessels in a column has been developed. The effect of the number of reactors in a column has been investigated and optimal segmentation conditions have been found. Based on the investigation of the process using the mathematical model a control system structure has been designed to provide maximum conversion at the exit area of a reactor column.

Keywords:

gold extraction sodium thiosulfate leaching kinetics inverse kinetic problem mathematical modeling optimal control

Шариков Ю.В., Турунен И. Разработка экологически безопасного метода экстракции золота из упорных руд с использованием раствора тиосульфата натрия в качестве экстрагента // Записки Горного института. 2015. Т. 215 . С. 83-90.

Sharikov Y.V., Turunen I. Development of an environmentally safe gold extraction method from refractory ores using sodium thiosulfate as an extractant // Journal of Mining Institute. 2015. Vol. 215 . p. 83-90.

References

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Development of an environmentally safe gold extraction method from refractory ores using sodium thiosulfate as an extractant

Abstract

References

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