MATERIAL CONSTITUTION CHARACTERISTICS GOVERNING PROCESSIBILITY OF CORUNDUM ORE

The information on the material constitution of corundum ore from the deposits Khit Island, Karelia, and Snezhnoe (Tajikistan) is given. The Khit Island corundum, which is the most productive corundum occurrence in Karelia (other occurrences are Varats, Dyadina Gora, etc.), of pink, crimson and violet red color, encloses collection-quality crystals in quantity of up to 5–7%. Corundum content of rocks is inconsistent. Corundum is, as a rule, heavily jointed. Vast majority of the Khit Island corundum crystals contain mineral pockets mostly of garnet, plagioclase, rutile, ilmenite zircon. The commercial mineralization of the Snezhnoe deposit is connected with marble and mica. The technological mineralogy data are presented for two genetic types of corundum ore—metamorphogene rocks and hydrothermal skarn-laid marble. An important problem of the present time is development of efficient and ecology-friendly dressing technologies using optical sorting methods. Mechanisms of operation of optical separators are described. In the processibility analysis of the Khit Island and Snezhnoe corundum ore, structural features of rocks and physico-mechanical properties of minerals are investigated. The corundum ranges are determined in the commonly used color spaces RGB, Yuv and HLS, and their applicability in optical sorting is defined. It is shown that complex processing of the Khit Island ore is possible with innovative and environmentally sound methods. The highest production data are expected in processing circuit including ground ore classification, magnetic separation and optical sorting.

For citation: Bubnova T. P., Barnov N. G., Gorbunova E. V., Chertov A. N. Material constitution characteristics governing processibility of corundum ore. Gornyy informatsionno-analiticheskiy byulleten'. 2019;4:162-174. [In Russ]. DOI: 10.25018/0236-1493-2019-04-0-162-174.

Keywords

Deposit, corundum, garnet, amphibole, particle size classification, magnetic separation, optical sorting, concentrate.

Issue number: 4
Year: 2019
ISBN: 0236-1493
UDK: 549.517.11+622.7
DOI: 10.25018/0236-1493-2019-04-0-162-174
Authors: Bubnova T. P., Barnov N. G., Gorbunova E. V., Chertov A. N.

About authors: T.P. Bubnova, Researcher, e-mail: bubnova@krc.karelia.ru, Geological Institute, Karelian Scientific Center, Russian Academy of Sciences, 185910, Petrozavodsk, Karelia, Russia, N.G. Barnov, Candidate of Geological and Mineralogical Sciences, Assistant Professor, e-mail barnov@inbox.ru, National University of Science and Technology «MISiS», 119049, Moscow, Russia, A.N. Chertov (1), Candidate of Technical Sciences, Assistant Professor, e-mail a.n.chertov@mail.ru, E.V. Gorbunova (1), Candidate of Technical Sciences, Senior Researcher, e-mail: gorbunova@grv.ifmo.ru, 1 St. Petersburg National Research University of Information Technologies, Mechanics and Optics, 197082, Saint-Petersburg, Russia. Corresponding author: T.P. Bubnova, e-mail: bubnova@krc.karelia.ru.

REFERENCES:

1. Kovalenko I. V., Kostelova T. G., Smirnov A. A. Mineral'noe syr'e. Kamnesamotsvetnoe syr'e [Mineral raw materials. Semi-precious stones], Moscow, ZAO «Geoinformmark», 1998, 77 p.

2. Barnov N. G., Mel'nikov E. P. Genetic types of noble corundum. Gornyy informatsionno-analiticheskiy byulleten’. 2015, no 6, pp. 79—85. [In Russ].

3. Zhilin A. S. Use of surface-active substance for improvement of rock crushing quality. Zapiski gornogo instituta. 2003. Vol. 155, part 2, pp. 62—65.

4. Bocharov V. A., Ignatkina V. A. Tekhnologiya obogashcheniya poleznykh iskopaemykh. T. 2. Obogashchenie zolotosoderzhashchikh rud i rossypey, obogashchenie rud chernykh metallov, obogashchenie gorno-khimicheskogo i nemetallicheskogo syr'ya [Mineral processing technology. VolBeneficiation of gold ore and placers, ferrous metal ores, mining chemical feedstock and nonmetallic raw materials], Moscow, Ruda i metally, 2007. 405 p.

5. C. Raghu Kumar, Srijith Mohanana, Sunil Kumar Tripathya, Y. Ramamurthya, T. Venugopalana, Nikkam Suresh Prediction of process input interactions of Floatex Density Separator performance for separating medium density particles. International Journal of Mineral Processing. 2011. Рp. 136—141.

6. Kobzev A. S., Alushkin I. V., Ol'khovskiy A. M., Tolmachev G. F., Shilkin A. N. Semi-commercial tests data on pre-treatment of gold-bearing ore from the Konevinskoe deposit by photometric separation. Obogashchenie rud. 2014, no 2, pp. 10—14. [In Russ].

7. Forsthoff W. Optical sorting of coarse materials. ZKG International. 2000. Vol. 53. No 6. Pp. 331—329.

8. Tsypin E. F., Koltunov A. V., Ovchinnikova T. Yu. Application of information techniques in processing of emerald-bearing beryllium ore from the Malyshevka deposit. Izvestiya vysshikh uchebnykh zavedeniy. Gornyy zhurnal. 2013, no 8, pp. 111—117. [In Russ].

9. Knapp H., Neubert K., Schropp Ch., Wotruba H. Viable applications of sensor-based sorting for the processing of mineral resources. СhemBioEng Review. 2014. Vol. 1. Pp. 86—95.

10. Pieper C., Pfaff F., Maier G., Kruggel-Emde H. and other Numerical modelling of an optical belt sorter using a DEM–CFD approach coupled with particle tracking and comparison with experiments. Powder Technology. 2018. Vol. 340. Pp. 181—193.

11. Mikhaylov V. P., Leont'ev A. G., Golovanov Yu. B. Mineral'no-syr'evaya baza Respubliki Kareliya. Kn. 2. Nemetallicheskie poleznye iskopaemye [Minerals and raw materials base of the Republic of Karelia. Book 2: Nonmetallic minerals], Petrozavodsk, Kareliya, 2006, pp. 235—241.

12. Lebedeva S. I. Mikrotverdost' mineralov [Mineral microhardness], Moscow, 1977, 118 p.

13. Sorokina E. S., Ozhogina E. G., Yakob D. E., Khofmeyster V. Some ontogenetic features of corundum and true ruby quality at the Snezhnoe deposit, Tajikistan (East Pamir). Zapiski RMO. 2012, no 141, issue 6, pp. 100—108. [In Russ].

14. Brandt F., Yaus R. New concepts for lithium minerals processing. Minerals Engineering. 2010. Vol. 23. Is. 8. Pp. 659—661.

15. Ergin Gülcan, Özcan Y. Gülsoy Performance evaluation of optical sorting in mineral processing. A case study with quartz, magnesite, hematite, lignite, copper and gold ores. International Journal of Mineral Processing. 2017. Vol. 169. Pp. 129—141.

16. Sadovnichiy R. V., Rozhkova N. N., Gorbunova E. V., Chertov A. N. Studying capacities of optical separation of schungite rocks at the Maksovo deposit (Zazhogino field). Obogashchenie rud. 2016, no 1, pp. 10—15. [In Russ].

17. Barry A. Wills, James A. Finch. Wills' Mineral Processing Technology. Elsevier Ltd., 2016. Ch. 14 Sensor-based Ore Sorting, pp. 409—416.

Our partners

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.