Anna Boduen

Anna Boduen
Saint Petersburg Mining University · Department of Metallurgy

About

29
Publications
972
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74
Citations
Citations since 2017
16 Research Items
71 Citations
201720182019202020212022202305101520
201720182019202020212022202305101520
201720182019202020212022202305101520
201720182019202020212022202305101520
Introduction
Skills and Expertise

Publications

Publications (29)
Article
Methods presented in Russian and foreign scientific literature sources for processing high-arsenic copper raw materials to convert arsenic into low-soluble and stable compounds are reviewed. Hydrometallurgical processing methods are shown to be applicable for converting environmentally hazardous components into inert solid wastes while avoiding the...
Article
Full-text available
In the present work the effect of alkaline sulfide leaching (ASL) on the extraction of copper and zinc from low-grade copper concentrate containing chalcopyrite, tennantite, sphalerite, and pyrite during batch and continuous bioleaching experiments was studied. It was demonstrated that ASL and further bioleaching may be a promising approach for tre...
Article
This article analyses available methods for processing low-grade copper concentrates, including existing hydrometallurgical schemes of their conditioning. To this end, we review Russian and foreign publications investigating existing technologies for processing substandard copper raw materials, which are used to deepen the extraction of valuable co...
Article
Full-text available
Pyrometallurgical treatment of copper concentrates containing arsenic poses a problem due to the emission of toxic gaseous arsenic oxides. Therefore, the development of effective environment-friendly hydrometallurgical approaches allowing extracting metals from these concentrates without gas emission is a relevant issue. The goal of the present wor...
Article
Full-text available
The goal of the present work was to evaluate the possibility to improve bioleaching of Cu-Zn concentrate containing tennantite by means of using alkaline sulfide leaching (ASL). Concentrate contained 18.1% Cu, 6.2% Zn, and 1.7% As. ASL allows removing arsenic by means of destruction tennantite (Cu12As4S13) that results in the formation of dissolved...
Article
Tank bioleaching of substandard arsenic-bearing sulfide copper–zinc concentrate, containing 1.70, 6.22, and 7.30% of arsenic, copper, and zinc, was performed. The concentrate contained pyrite, chalcopyrite, tennantite, and sphalerite. Bioleaching was performed at 40°C using a mixed culture of acidophilic microorganisms in two modes. In the first mo...
Chapter
ABSTRACT: The current status of processing copper ores containing high concentration of arsenic and antimony for South Ural industry area was considered. Mining and industrial complexes with challenging operating conditions were identified by key figures. Based on current technological processes, problematic factors and its influence on finished pr...
Article
The goal of the present work was to develop hydrometallurgical approaches based on acid leaching for selective extraction of base metals from the sample of old flotation tailings as well as obtaining solution, which can be used for leaching of substandard copper-zinc concentrate. Old flotation tailings contained 23.2% of iron, 0.36% of copper, and...
Article
Inevitable depletion of mineral reserves involves search for the new alternative sources of non-ferrous metals, in particular, noble metals. Chromite ores in dunite, conventionally treated as refractory materials, are considered to be a prospecting feedstock of platinum group metals. Studies were performed on platinum group metals production as by-...
Article
Among various types of gold-bearing ores a special place belongs to the ores, which contain gold finely-dispersed in sulphide minerals, mostly in arseno-pyrite and pyrite. Autoclave-hydrometallurgical processing technologies for such raw materials seem to be of a particu-lar interest for study. However, autoclave oxidation of sulfide-arsenic materi...
Article
The paper presents the results of the Nizhny Tagil dunite massif lowgrade platiniferous chromite ore (0.21 g/t Pt; 0.08 g/t Rh) material composition and processing technology studies. Gravity-magnetic processing flow sheet permits to recover platinum-containing magnetic concentrate with high grades of magnetite and platinum-iron alloys. Platinum re...
Article
Nowadays, copper industry consists mostly of pyrometallurgical technologies (not more than 10-15% of hydrometallurgy are included). Exhaustion of rich copper deposits led to the necessity of expansion of raw material base due to the involvement of poor and off-balance ores in production, which, in turn, led to obtaining of ill-conditioned concentra...
Article
The article is dedicated to the current problem of increasing the quality of substandard copper concentrates, obtained through enrichment of copper-zinc pyrite ores and known for thin mutual germination of minerals and the incapability of obtaining high-grade concentrates by applying acceptable technological parameters du ring the enrichment stage....
Article
Efficient management of man-caused resources is an actual direction of the development of Russian metallurgy. It is connected with the valuable components containing in stored production wastes. The method of hydrometallurgical processing of steelmaking Zn-containing dust is proposed. It is based on ammonia chloride leaching with consequent product...
Article
Low-basic Cybber anionites with various functional groups and a matrix type are tested for the recovery of rhenium from multicomponent sulfuric acid solutions. It is established that anionite SX002 manifests an increased capacity during the sorption from solutions with a low Re content, while anionite ALX220 is applicable to recover Re at its high...
Article
It is of current concern for Russia's mineral raw material base to improve sulfide ore processing performance (recovery, concentrate quality). Sulfide ores make a good part of the registered economic resource base in Russia (about 20%). The analysis of the available data on industrial processing of copper-zinc ore shows that modernization of proces...
Article
Currently, in the world industry of base metals, in progress are efficient combination technologies including hydrometallurgical processes. Autoclaving, one of the main paths in the modern hydrometallurgy, allows various high-rate chemical transformations in water environment due to wide range of temperatures and high concentration of gaseous agent...
Article
Nowadays, substandard concentrates with 15-20% of copper and considerable part of zinc and lead are mostly obtained in the time of concentration of copper-zinc sulphide ores. Introduction of modernized concentration methods provides only insignificant growth of extraction of non-ferrous metals. According to this, nowadays, efficient combined techno...
Article
Increasing of technological indices (extraction, quality of concentrates) with concentration of sulfur ores (which include the considerable part of Russian balance reserves (~20%)) is an urgent task for Russian mineral raw materials complex. Analysis of existing industrial data on processing of Russian copper-zinc sulfur ores is the evidence that r...
Article
The incidental concentration of valuable components that takes place during the processing of sulfide copper ore in Kazakhstan is accompanied by the formation of a semifinished product which contains large amounts of osmium, rhenium, and selenium. The article identifies products with high concentrations of rare micro-components, describes methods o...
Article
For the Russian mineral resources sector, the vital task is to increase metallurgical results (recovery, concentrate grade) in pyrite ores processing, as this type of ores accounts for a significant (about 20 %) share of the registered economic resource base of the Russian Federation. The article considers the results of the upgrades and a number o...
Chapter
The world aluminum industry is completely based on use of the high-quality bauxites processed by the most simple and economic Baeyer method. In the domestic aluminum industry in connection with the limited stocks of high-quality bauxites on large scale non bauxites low-grade alumina-containing raw material – nephelines are processed. One of the ent...
Article
Russia possesses a high potential for resource growth and platinoid reserves, and technogenic waste of complex ore processing can become a considerable part of the process in the near future. It is practical to take into account impounded mill tailings of sulphide copper-nickel ores, old pyrrhotine concentrates (OPC), impounded magnetite concentrat...
Article
Along with traditional raw materials (actually platinum and complex copper-nickel sulfide ores), technogenics waste of processing of polymetallic ores processing can be used as an alternative source for platinum group metals production. The largest technogenics platinum deposits are located in Russia. These deposits are presented by Norilsk technog...

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