Research of textural and structural features of refractory gold-bearing ores
URI (для ссылок/цитирований):
https://iopscience.iop.org/article/10.1088/1742-6596/1399/5/055040https://elib.sfu-kras.ru/handle/2311/142251
Автор:
V A Gron1 V V Korostovenko1 A V Galaiko1 A V Sukhanova1 And M, S Gron2
Коллективный автор:
Институт цветных металлов и материаловедения
Кафедра техносферной безопасности горного и металлургического производства
Дата:
2019-12Журнал:
Journal of Physics: Conference SeriesКвартиль журнала в Scopus:
Q3Квартиль журнала в Web of Science:
без квартиляБиблиографическое описание:
V A Gron1 V V Korostovenko1 A V Galaiko1 A V Sukhanova1 And M, S Gron2. Research of textural and structural features of refractory gold-bearing ores [Текст] / S Gron2 V A Gron1 V V Korostovenko1 A V Galaiko1 A V Sukhanova1 And M // Journal of Physics: Conference Series. — 2019. — Т. 1399 (№ 5). — С. 055040Аннотация:
Abstract. The article studies the material and mineralogical composition of the refractory goldbearing
ores of the weathering crust of one of the deposits in Eastern Siberia. It is revealed that,
according to the textural and structural features, ores are multi-mineral and have significant
differences in the composition of the detrital, granular material and the loose component. All ore
is saturated with iron hydroxides and limonite crusts with clay components. The results of the
analysis showed that large classes contain an insignificant amount of a valuable component.
Increased gold content is noted starting from -4 + 0 mm size. In the free state are about 3-5%.
Processing of these types of raw materials is a rather complicated task. Analysis of the
enrichment methods showed that the use of new solvents of noble metals with their subsequent
concentration is promising. Of practical interest are alkaline solutions obtained by dissolving
sulfur in an aqueous suspension of calcium hydroxide. The reagent is non-toxic and
environmentally friendly. Leaching was carried out in a wide range of concentrations of the
solvent used. The optimum solvent concentrations and the duration of the leaching process for
extracting the valuable component into the filtrate were determined to be 97–98%. Chemical
analysis of cakes showed that the reagent does not enter into chemical interaction with other
elements that make up the ore. As well as the content of elemental sulfur in dump cakes averages
0.64%, that is, it corresponds to a content in the raw material of up to 0.8%. At the same time,
cakes are not environmentally harmful and can be stored on special platforms.