Open AccessThe Formation of Crystalline Mineral Covers on the Surface of Diamonds and Their Destruction with the Use of Electrochemically Treated Water Products
Author(s) -
Г. П. Двойченкова,
В. В. Морозов,
Yu. A. Podkamennyi,
Е. Н. Чернышева
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/459/5/052098
Subject(s) - dissolution , kimberlite , mineral , crystallization , electrolysis , aqueous solution , diamond , chemical engineering , mineralogy , metallurgy , materials science , chemistry , geology , electrolyte , geochemistry , electrode , mantle (geology) , engineering
The composition of the surface of natural diamonds in interaction with minerals and the aqueous phase in the kimberlite deposit and processed ore are studied. The sequence and conditions for the formation of hydrophilic minerals on the surface of diamond crystals under conditions of processing of kimberlites have been determined. Confirmed the mechanism of hydrophilization of diamonds surface comprising formation of hydroxides and oxides of iron as a mandatory initial stage of crystallization. A method of restore the hydrophobicity of diamonds by the impact of electrolysis products of aqueous systems has been proposed, which allows to destruction or subsequent dissolution of minerals aggregate. The use of treated water in the process of froth separation it possible to increase diamonds recovery in the processing plant concentrate by 8.8%.