Effect of iron/zinc vitriol–sodium sulphide blends on copper–zinc sulphide ore flotation

Spotlight is on potential improvement of selective flotation and separation of copper and zinc sulphides from pyrite in flotation of copper–zinc ore using the blends of iron or zinc vitriol and sodium sulphides in the presence of potassium butyl xanthate. The flotation research of copper–zinc ore used the flow chart which included copper flotation I and copper–zinc flotation II. The flotation research used such flotation agents that were capable to promote weak flotation of iron sulphides and to ensure selective separation of copper and zinc minerals. It is found how the consumption ratios of these agents influence the flotation performance and the efficiency of separation of copper and zinc sulphides. The studies into the flotation kinetics in the presence of blends of the test modifiers are described. The experimental results are compared. It is proposed to calculate the fractional selectivity of copper and zinc minerals with regard to their flotation kinetics and to their distribution by hard-, mediumand fast-floatable fractions. It is found that the use of blends of the listed metal-bearing modifiers enables efficient flotation of both copper minerals and zinc minerals.

Keywords: copper–zinc ore, iron sulfate (II), extraction, zinc sulfate, activation, depression, flotation, sodium sulphide, flotation kinetics, separation.
For citation:

Htet Zaw Oo, Kyaw Zay Ya, Goryachev B. E. Effect of iron/zinc vitriol–sodium sulphide blends on copper–zinc sulphide ore flotation. MIAB. Mining Inf. Anal. Bull. 2023;(12):139-151. [In Russ]. DOI: 10.25018/0236_1493_2023_12_0_139.

Issue number: 12
Year: 2023
Page number: 139-151
ISBN: 0236-1493
UDK: 622.765
DOI: 10.25018/0236_1493_2023_12_0_139
Article receipt date: 18.04.2023
Date of review receipt: 10.07.2023
Date of the editorial board′s decision on the article′s publishing: 10.11.2023
About authors:

Htet Zaw Oo1, Graduate Student, e-mail: htetzawoo68099@gmail.com, ORCID ID: 0000-0003-2040-2552,
Kyaw Zay Ya1, Cand. Sci. (Eng.), Intern-Doctoral Student, e-mail: kokyawgyi49@gmail.com, ORCID ID: 0000-0003-4364-9574,
B.E. Goryachev1, Dr. Sci. (Eng.), Professor, e-mail: beg@misis.ru,
1 National University of Science and Technology «MISiS», 119049, Moscow, Russia.


For contacts:

Htet Zaw Oo, e-mail: htetzawoo68099@gmail.com.


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