Evaluation of flotation ability of a sulfhydryl collector mixture in the processing of copper-bearing ores
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- Category: Solid-state physics, mineral processing
- Last Updated on 11 January 2018
- Published on 11 January 2018
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Authors:
Sh.К. Amerkhanova, Doctor of Chemical Sciences, Professor, Buketov Karaganda State University, Professor of the Department of Physical and Analytical Chemistry, Karaganda, Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
R.М. Shlyapov, Candidate of Chemical Sciences, Associate Professor, Buketov Karaganda State University, Associate Professor of the Department of Chemical Engineering and Petroleum Chemistry, Karaganda, Kazakhstan
А.S. Uali, Candidate of Chemical Sciences, Associate Professor, Buketov Karaganda State University, Associate Professor of the Department of Chemical Engineering and Petroleum Chemistry, Karaganda, Kazakhstan
Abstract:
Purpose. Establishing the criteria for the selectivity of flotation enrichment of copper- copper-bearing ores with a mixture of sulfhydryl collectors.
Methodology. Atomic absorption, X-ray fluorescence analysis.
Findings. Investigations of flotation ability of collector mixtures of potassium butyl xanthate and sodium isobuthyldithiophosphate in relation to the copper-bearing ore samples are carried out. Mathematical models describing the enrichment process of copper ore are obtained. Optimal conditions of froth flotation in particular air flow rate of 40 l/h-1, frequency of impeller rotation of 35 Hz, consumption of lime of 3000 g/t-1, consumption of a collector mixture of 100 g/t-1 are determined.
Originality. For the first time, the regression equations simulating the effect of oxygen amount in the pulp, pH of medium, contact time of solid phase with a solution of a collector mixture, of collector mixture concentration, are obtained. The flotation analysis of a “copper ore – solution of collector mixture” system is carried out. It is established that the effect of air flow rate on the fractional composition of the pulp by floatability, which is to change the redox potential, leads to a change in the strength of securing of collectors on the ore surface.
Practical value. Obtained mathematical relationships will enable to carry out the forecast of the change in chemical-technological parameters of enrichment under the influence of air flow rate, consumptions of medium regulator (lime) and mixture of collectors, frequency of impeller rotation. Results of the flotation analysis can be used in developing and improving flowsheets.
References
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