RESEARCH FINDINGS ON FINAL SCAVENGING OF GOLD-BEARING CONCENTRATES

One of the methods of improving efficiency of flotation is application of additional centrifugal forces in rotation of flotation solution—centrifugal flotation. In the flotation technique developed at the Institute of Mining of the North, SB RAS, mineral particles are separated with respect to the hydrophobic behavior in a thin surface layer of rotating water flow (pulp). This article describes the results of the experimental research into treatment of gold–antimony ore processing products by centrifugal flotation. The research was implemented on a test bench using laboratory centrifugal flotation machine (CFM) with the center discharge of concentrate. The rational parameters of flotation on the surface of rotation fluid (pulp flow velocity, feed density) are determined for the final scavenging of gold-bearing concentrates. The best gold recovery of 68.7% in concentrate at the content of 54.1 g/t is reached at the pulp flow velocity of 0.45 m/s and the solid/liquid ratio of 1:2; the rate of gold concentration is 2.6. It is found that combination of the centrifugal force of fluid flotation and the hydrophobic properties of minerals improves selectivity of mineral separation; the centrifugal flotation machine is usable for scavenging of concentrates with a view to increasing their quality.

Keywords

Beneficiation, centrifugal flotation, mineral particle, hydrophobic behavior concentrate, recovery, concentration rate.

Issue number: 11
Year: 2018
ISBN:
UDK: 622.765
DOI: 10.25018/0236-1493-2018-11-0-186-191
Authors: Salomatova S. I.

About authors: Salomatova S.I., Candidate of Technical Sciences, Scientific Secretary, e-mail: ssalomatova@mail.ru, Chersky Mining Institute of the North, Siberian Branch, Russian Academy of Sciences, 678980, Yakutsk, Republic of Sakha (Yakutia), Russia.

REFERENCES:

1. Chanturiya V. A., Lavrinenko A. A., Krasnov G. D. Povyshenie effektivnosti flotatsii na osnove ispol'zovaniya energeticheskikh vozdeystviy [Improvement of flotation efficiency by energy deposition], Gornyy zhurnal. 2006, no 10, pp. 48—52. [In Russ].

2. Lavrinenko A. A., Krasnov G. D. Sovremennoe sostoyanie i osnovnye napravleniya sozdaniya flotatsionnoy tekhniki [Current state and basic trends in flotation equipment engineering], Gornyy zhurnal. 2007, no 2, pp. 108—117. [In Russ].

3. Arsent'ev V. A., Vaysberg L. A. Napravleniya sozdaniya tekhnologiy i apparatov dlya obogashcheniya tonkoizmel'chennogo mineral'nogo syr'ya s minimizatsiey ispol'zovaniya vody [Trends in creation of technologies and equipment for processing of finely ground minerals at the minimized water consumption]. Progressivnye metody obogashcheniya i kompleksnoy pererabotki prirodnogo i tekhnogennogo mineral'nogo syr'ya. Materialy nauchnogo soveshchaniya. Karaganda: TOO «Arko», 2014, pp. 6—9. [In Russ].

4. Rubinshteyn Yu. B., Perel'man E. Ya., Spivakovskiy I. N. Tsentrobezhnye pnevmaticheskie flotatsionnye mashiny v SSSR i za rubezhom: obzornaya informatsiya. Vyp. 1. Gornoe oborudovanie. Ser. 2. [Centrifugal pneumatic flotation machines in the USSR and abroad: overview information. Issue 1. Mining equipment. Series 2], Moscow, TSNIITEItyazhmash, 1988, 24 p.

5. Gorbunova T. G., Frolov Yu. I. Issledovanie kombinirovannoy tekhnologii dovodki flotatsionnykh zoloto- i serebrosoderzhashchikh kontsentratov [Analysis of combination technology for cleanup of gold- and silver-bearing flotation concentrates]. Razrabotka tekhnologii obogashcheniya rudnykh i rossypnykh mestorozhdeniyCollection of scientific papers. Magadan, VNII-1, 1985, pp. 3—9.

6. Matveev A. I., Salomatova S. I. Flotatsiya zolota na poverkhnosti vrashchayushcheysya zhidkosti. Pod red. V. E. Filippov [Gold flotation on the surface of rotating fluid. Filippov V. E. (Ed.)], Yakutsk, Izd-vo YANTS SO RAN, 2008, 141 p.

7. Antimony from the lowveld, South Afric. Mining and Engineering Journal, 1961, 72, part 2, no 3578, Sept. 1, p. 527.

8. John V. Beall Coeur d’Alene Profile—1966. Mining Engineering, 1966, v. 12, no 7, July, p. 164.

9. Matveev A. I., Salomatova S. I., YAkovlev V. B., Monastyrev A. M., Eremeeva N. G., Sleptsova E. S. Patent RU 2183998, 7V03D 1/02 1/24. 27.06.2002.

10. Salomatova S. I., Matveev A. I. Patent RU 2460586. MPK B03D1/24. 10 09.2012.

11. Salomatova S. I. Primenenie tsentrobezhnoy flotatsii pri obogashchenii zolotosoderzhashchikh produktov [Centrifugal flotation in processing of gold-bearing products], Gornyy informatsionno-analiticheskiy byulleten’. 2017. Special edition 24, pp. 240—246. [In Russ].

12. Boltukhaev G. I., Solozhenkin P. M. Pererabotka krupnoob"emnykh prob zoloto-sur'myanykh rud Sentachanskogo mestorozhdeniya [Processing of large gold–antimony ore samples at the Sentachan deposit], Tsvetnye metally. 2009, no 4, pp. 41—44. [In Russ].

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