Metrics

  • citations in SCIndeks: 0
  • citations in CrossRef:0
  • citations in Google Scholar:[]
  • visits in previous 30 days:7
  • full-text downloads in 30 days:4

Contents

article: 1 from 1  
2021, vol. 57, iss. 1, pp. 19-26
Intensification of diamond purification from hydrophilic minerals in foam separation process
aInstitute of Comprehensive Exploitation of Mineral Resources of Russian Academy of Sciences, Moscow, Russian Federation + Mirny Polytechnic Institute (branch) of North-Eastern Federal University, Mirny, Russian Federation
bNational University of Science and Technology "MISiS", Moscow, Russian Federation
cMirny Polytechnic Institute (branch) of North-Eastern Federal University, Mirny, Russian Federation + Institute Yakutniproalmaz PJSC "ALROSA", Mirny, Russian Federation
dMirny Polytechnic Institute (branch) of North-Eastern Federal University, Mirny, Russian Federation

emaildchmggu@mail.ru
Keywords: Diamonds; Foam separation; Heat treatment; Recirculating water; Conditioning
Abstract
The reason for diamond loss in foam separation process consists in the fact that the diamond crystals fed to the foam separation are coated with hydroxides and carbonates. A combined method to restore the diamond hydrophobicity through thermal and electrochemical destruction of the mineral coat was proposed. This method provides for the conditioning stage in the foam separation process to enable decreasing the amount of the minerals coating diamonds surface from 3 to 10 times. Technological research showed that using products of diaphragm less electrolysis of recirculating water, with the thermal treatment of the foam separation feed enables increasing the recovery of diamonds in the foam separation concentrate from 76.5% to 83.7%.
References
Abramov, A.A. (2010) Flotation. Physical and chemical modeling of processes. Moscow: Gornaya kniga
Bardukhinov, L.D., Spetsius, Z.V., Lipashova, A.N. (2018) Structural defects and mineral inclusions in diamonds from nakyn and alakit-markhin field kimberlite pipes based on Raman and IR spectroscopy data. Ores and metals, 4: 76-86
Chukanov, N., Chervonnyi, A. (2016) Infrared Spectroscopy of Minerals and Related Compounds. Cham-Heidelberg -New York -Dordrecht -London: Springer International Publishing
Dvoichenkova, G.P., Morozov, V.V., Podkamennyi, Y.A., Chernysheva, E.N. (2020) The Formation of Crystalline Mineral Covers on the Surface of Diamonds and Their Destruction with the Use of Electrochemically Treated Water Products. IOP Conference Series: Earth and Environmental Science, 459 (2020) 052098
Dvoichenkova, G.P. (2014) Mineral formations on natural diamond surface and their destruction using electrochemically modified mineralized water. Journal of Mining Science, 50, 788-799
Dvoichenkova, G.P., Kovalenko, E.G., Morozov, V.V., Podkamenny, Y.A. (2021) Destruction of crystalline mineral coatings on the surface of diamonds with the use of thermal and electrochemical treatment. in: XIV International Mineral Processing and Recycling Conference, 12-14 May 2021, Belgrade, 78-83
Dvoichenkova, G.P. (2014) Mineral formations on natural diamond surface and their destruction using electrochemically modified mineralized water. Journal of Mining Science, 4, 159-165
Dvoichenkova, G., Chanturiya, V., Morozov, V., Podkamenny, Y., Kovalchuk, O. (2019) Analysis of Distribution of Secondary Minerals and their Associations on The Surface of Diamonds and in Derrivative Products of Metasomatically Altered Kimberlites. J Polish Miner. Eng. Soc, 43 (1), 43-46
Karapetyants, M.H., Karapetyants, M.L. (1968) Basic thermodynamic constants of inorganic and organic substances. in: Chemistry, In Russian
Kovalenko, E.G., Dvoichenkova, G.P., Polivanskaya, V.V. (2014) Substantiation of the application of the heat treatment method for improving the efficiency of the process of foam separation of diamonds. Mining information and analytical bulletin (scientific and technical journal), No. 6, 158-164. In Russian
Mahoney, J., Monroe, C., Swartley, A.M. (2020) Surface analysis using X-ray photoelectron spectroscopy. Spectroscopy Letters, 53 (10), 726-736
Makarsky, I.V., Adodin, E.I., Tarasova, L. (2011) Improvement of thermochemical methods of deep diamond purification. Gorniy zhurnal, No. 1, 89-91. In Russian
Ravdel, A.A., Ponomareva, A.M. (1983) Shot Reference of Physico-Chemical Values. in: Chemistry, Moscow, 8th Edition
Timakova, E. (2016) Physical chemistry. Chemical thermodynamics. Novosibirsk, In Russian
Westhyzen, P., Bouwer, W., Jakins, A. (2014) Current trends in the development of new or optimization of existing diamond processing plants, with the focus on beneficiation. J of the Southern African Institute of Mining and Metallurgy, 114(7): 539-545
 

About

article language: English
document type: Original Scientific Paper
DOI: 10.5937/JMMA2101019D
received: 02/06/2021
accepted: 30/08/2021
published in SCIndeks: 28/12/2021
Creative Commons License 4.0

Related records

No related records