Estimation of selectivity of sulfhydryl collectors on a dithiophosphate basis

Copper reserves in Russia rank fourth largest in the world, which makes the country one of the top copper suppliers. Copper enjoys high demand owing to its properties. Intense copper mining has resulted in the decline in copper reserves worldwide and forced transition to processing of difficult and rebellious ore. Such ore treatment needs new reagents and circuits of flotation. The influence of phosphorus-bearing sulfhydryl collectors on flotation performance of rebellious copper sulphide ore is studied. The tests were performed with collecting agents: Beraflot 3026, Beraflot 40, Beraflot 3035 (Gvintsvetmet Institute), Aerofin 3418А, Aeroflot308, Aeroflot 238 (Solvay (Cytec)), BTF 1552, BTF 1517and BTF 163 (Kvadrat plyus). Butyl xanthate was used as a reference standard. The selectivity indexes of inter-circuit copper flotation and copper losses with tailings in the tests with the listed agents and in the reference tests performed in the same conditions were compared. The dialkyl dithiophosphate-based collector BTF 1517 appears as the most selective agent, with inter-circuit Cu selectivity of 4.01 and copper loss with tailings of 11.35%. The selectivity in Cu concentrates was 3.88. Collectors BTF 1552 and BTF 163 also showed the best selectivity of 4.94 and 6.13, respectively, in one Cu concentrate and 3.79 and 3.26, respectively, in two Cu concentrates, at copper losses of 12.90% and 15.98%. The lowest selectivity was obtained with butyl xanthate—3.58 in one Cu concentrate and 2.19 in two Cu concentrates, at copper loss with tailings of 20.85%.

Keywords: tennantite, pyrite, flotation, copper sulphide ore, sulfhydryl collector, mineral, arsenic, copper.
For citation:

Zharolla N. D., Yergeshev A. R., Ignatkina V. A. Estimation of selectivity of sulfhydryl collectors on a dithiophosphate basis. MIAB. Mining Inf. Anal. Bull. 2020;(11):14-26. [In Russ]. DOI: 10.25018/0236-1493-2020-11-0-14-26.

Acknowledgements:
Issue number: 11
Year: 2020
Page number: 14-26
ISBN: 0236-1493
UDK: 622.7.017.24
DOI: 10.25018/0236-1493-2020-11-0-14-26
Article receipt date: 10.04.2020
Date of review receipt: 29.06.2020
Date of the editorial board′s decision on the article′s publishing: 10.10.2020
About authors:

N.D. Zharolla1, Magister, e-mail: nazymarzu.zharolla@mail.ru,
A.R. Yergeshev1, Magister, e-mail: akim9797@mail.ru,
V.A. Ignatkina1, Dr. Sci. (Eng.), Professor, e-mail: woda@mail.ru,
1 National University of Science and Technology «MISiS», 119049, Moscow, Russia.

 

For contacts:

N.D. Zharolla, e-mail: nazymarzu.zharolla@mail.ru.

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