MATERIAL CONSTITUTION AND RECOVERY OF IMPACT DIAMONDS

Material constitution and processability of sinking fraction of carbon-bearing material sampled in the Popigai Astroblem area is studied. In terms of abrasive ability, impact diamond powders exceed natural and synthesized diamonds by 1.8–2.4 times, while the super-hard material and products made of the powdered impact diamonds have the abrasive ability 2.0–2.5 times higher. The study objects were Archean graphite-bearing schist, gneiss and plagioclase gneiss of the Anabar Shield (garnet, biotite–garnet, biotite–pyroxene, two-pyroxene) and sedimentary cover rocks (quartzite, siltstone, sandstone, shale, carbon-bearing argillite, limestone, dolomite, sand and clay). The composition of the diamond-bearing rocks of the Popigai Astroblem differs considerably from the composition of kimberlite and lamproite. The diamond-bearing rocks at Popigai contain much quartz (more than 35%), impact-crater acid and medium-composition glass, feldspar (albite and potassic feldspar). Quartz is acid-resistant. The studies were carried out using engineering, mathematical, flotation, gravity and other dedicated test methods. The developed circuit for rough concentrate finishing ensures complete recovery of the valuable component.

Keywords

Impact diamonds, Popigai Astroblem, material constitution, mineralogy, structure, recovery, combination processing circuits.

Issue number: 6
Year: 2018
ISBN:
UDK: 622.722
DOI: 10.25018/0236-1493-2018-6-0-13-19
Authors: Algebraistova N. K., Perfilova O. Yu., Kolotushkin D. M., Komarova E. S.

About authors: Algebraistova N.K., Candidate of Technical Sciences, Professor, Assistant Professor, e-mail: algebraistova@mail.ru, Perfilova O.Yu., Candidate of Geological and Mineralogical Sciences, Assistant Professor, e-mail: perfil57@mail.ru, Kolotushkin D.M., Graduate Student, e-mail: denisss911@mail.ru, Komarova E.S., Student, e-mail: ekaterina.komarova.1995@mail.ru, Siberian Federal University, 660041, Krasnoyarsk, Russia.

REFERENCES:

1. Afanas'ev V. P. Pokhilenko N. P. Popigayskie impaktnye almazy: novoe rossiyskoe syr'e dlya sushchestvuyushchikh i budushchikh tekhnologiy [Popigai crater impact diamonds: a new raw material for the current and future technologies in Russia]. Innovatika i ekspertiza. 2013, no 1 (10), pp. 8—15. [In Russ].

2. Bochko A. V. Val'ter A. A. Gurskiy D. S. Eremenko G. K. Tekhnologicheskie svoystva impaktnykh almazov [Processing behavior of impact diamonds]. Mineralogicheskiy zhurnal. 1999, vol. 21, no 2—3, pp. 16—22. [In Russ].

3. Masaytis V. L., Futergendler S. I., Gnevushev M. A. Almazy v impaktitakh Popigayskogo meteoritnogo kratera [Diamonds in the impact material of the Popigai meteorite crater]. Zapiski VMO. 1972, part 101, issue 1, pp. 108—112. [In Russ].

4. Masaytis V. L., Mikhaylov M. V., Selivanovskaya T. V. Popigayskiy meteoritnyy krater [Popigai meteorite crater]. Sovetskaya geologiya. 1971, no 6, pp. 143—147. [In Russ].

5. Masaytis V. L., Mashchak M. S., Raykhlin A. I. Almazonosnye impaktity Popigayskoy astroblemy [Diamond-bearing impact material of the Popigai Astroblem], Saint-Petersburg, Izd-vo VSEGEI, 1998, 178 p.

6. Masaytis V. L., Simonov O. N. Unikal'nye mestorozhdeniya tekhnicheskikh almazov Popigayskogo rayona [Unique commercial diamonds of the Popigai region]. Mineral'nye resursy Taymyrskogo avtonomnogo okruga i perspektivy ikh osvoeniya, Saint-Petersburg, Izd-vo VSEGEI, 2004, pp. 156—161.

7. Sil'yanov S. A. Savchik D. M. Tagamity Popigaykoy astroblemy [Popigai Astroblem tagamite]. Mel'ni-

kovskie chteniya 2016: sbornik dokladov Mezhdunarodnoy molodezhnoy nauchnoy konferentsii. Blagoveshchensk, FGBOU VPO AmGU, 2016, pp. 104—107. [In Russ].

8. Masaytis V. L., Kirichenko V. T., Mashchak M. S. Fedorova I. G. Korennye mestorozhdeniya i rossypi impaktnykh almazov Popigayskogo rayona (Severnaya Sibir') [Primary deposits and impact diamond placers in the Popigai region (North Siberia)]. Regional'naya geologiya i metallogeniya. 2013, no 64, pp. 89—98. [In Russ].

9. Rudy i kontsentraty tsvetnykh metallov. GOST R 53198-2008 [Nonferrous metal ore and concentrates. State Standart R 53198-2008], Moscow, Standartinform, 2009, 23 p.

10. Chernoknizhnikov V. V., Goncharov M. M. Impaktnye almazy Taymyrskogo avtonomnogo okruga i ikh promyshlennoe ispol'zovanie [Impact diamonds and their industrial use in the Taimyr Autonomous Okrug], Novosibirsk, Izd-vo SO RAN, 2003, pp. 337—339.

11. Yelisseyev A., Meng G. S., Afanasyev V., Pokhilenko N., Pustovarov V., Isakova A., Lin Z. S., Lin H. Q. Optical properties of impact diamonds from the Popigai astrobleme. Elsevier Science, Diamond & Related Materials. Vol. 37. 2013. Pp. 8—16.

12. Yelisseyev A., Vins V., Afanasyev V., Rybak A. Effect of electron irradiation on optical absorption of impact diamonds from the Popigai meteorite crater. Elsevier Science, Diamond & Related Materials. Vol. 79. 2017. Pp. 7—13.

13. Yelisseyev A., Afanasyev V., Panchenko A. V., Gromilov S. A., Kaichev V. V., Saraev A. A. Are they impact diamonds from the Popigai crater? Elsevier Science, Lithos. Vol. 265. 2016. Pp. 278—291.

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.