Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Aleksandr Bulaev"'
Autor:
Khussain Valiyev, Aliya Bugubaeva, Aleksandra Nechaeva, Alena Artykova, Vitaliy Melamud, Devard Stom, Anna Boduen, Aleksandr Bulaev
Publikováno v:
Molecules, Vol 29, Iss 7, p 1550 (2024)
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was
Externí odkaz:
https://doaj.org/article/fb9211aa0ec04febb6e4ab58a0c859a1
Autor:
Alena Artykova, Yuliya Elkina, Aleksandra Nechaeva, Vitaliy Melamud, Anna Boduen, Aleksandr Bulaev
Publikováno v:
Microbiology Research, Vol 13, Iss 3, Pp 466-479 (2022)
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 w
Externí odkaz:
https://doaj.org/article/7310c6d32d794c8a97f5929a431d8fb2
Autor:
Aleksandr Bulaev, Vitaliy Kadnikov, Yulia Elkina, Aleksey Beletsky, Vitaliy Melamud, Nikolai Ravin, Andrey Mardanov
Publikováno v:
Biology, Vol 12, Iss 11, p 1411 (2023)
In the present study, the effect of additional carbon sources (carbon dioxide and molasses) on the bio-oxidation of a pyrite–arsenopyrite concentrate at temperatures of 40–50 °C was studied, and novel data regarding the patterns of the bio-oxida
Externí odkaz:
https://doaj.org/article/1c3a865bc040451f8612f692175044fa
Autor:
Aleksandr Bulaev, Vitaliy Melamud
Publikováno v:
Microorganisms, Vol 10, Iss 9, p 1781 (2022)
Bioleaching may be effectively used to extract nonferrous metals from sulfide ores and concentrates. At the same time, some minerals are refractory and their bioleaching rate is often comparatively low that does not allow the required metal extractio
Externí odkaz:
https://doaj.org/article/c0cd426058674c7abaca71eb1ac28b1d
Autor:
Alyona Yachkula, Olga Rozova, Tatiana Abashina, Mikhail Vainshtein, Denis Grouzdev, Aleksandr Bulaev
Publikováno v:
Minerals, Vol 12, Iss 8, p 1051 (2022)
Autotrophic acidophilic bacteria Acidithiobacillus ferrooxidans is a model species for studying metal bioleaching from low-grade sulfide ores and concentrates. Arsenopyrite gold-bearing concentrates are refractory and often processed using biohydrome
Externí odkaz:
https://doaj.org/article/d205b83a4edf4bcaa67393fb0b62e9fe
Autor:
Yuliya Elkina, Aleksandra Nechaeva, Alena Artykova, Aleksandr Kolosoff, Aliya Bugubaeva, Vitaliy Melamud, Andrey Mardanov, Aleksandr Bulaev
Publikováno v:
Minerals, Vol 12, Iss 5, p 592 (2022)
The goal of this work was to study the bioleaching of arsenic-containing polymetallic concentrate that contained 6.2% Cu, 7.3% Zn and 1.7% As, depending on different temperatures and in the presence of CO2 and molasses in the medium, as well as the d
Externí odkaz:
https://doaj.org/article/788cde0ed9024b42ad262c23b05cdb3f
Publikováno v:
Minerals, Vol 12, Iss 3, p 340 (2022)
The aim of the present work was to perform copper, nickel, and platinum group metals (PGMs) recovery from low-grade copper–nickel concentrate containing pyrrhotite, pentlandite, and chalcopyrite by bioleaching in stirred tank reactors in batch mode
Externí odkaz:
https://doaj.org/article/6d762328ea0943a2a1fc0998244e4d6d
Autor:
Aleksandr Bulaev, Anna Boduen
Publikováno v:
Minerals, Vol 12, Iss 2, p 110 (2022)
The goal of the present work was to evaluate the possibility of improving the efficiency of the stirred tank reactor biooxidation of sulfide gold-bearing concentrate by means of addition of carbon sources required for the constructive metabolism of m
Externí odkaz:
https://doaj.org/article/e7e4388a1f1648a9a2296b63a7b7e74c
Publikováno v:
Microorganisms, Vol 9, Iss 11, p 2350 (2021)
Tank bio-oxidation is a biohydrometallurgical technology widely used for metal recovery from sulfide concentrates. Since carbon availability is one of the key factors affecting microbial communities, it may also determine the rate of sulfide concentr
Externí odkaz:
https://doaj.org/article/419749b9fb8a45fe8b23792e3a6a1f3b
Publikováno v:
Microorganisms, Vol 9, Iss 5, p 984 (2021)
Acidiphilium multivorum LMS is an acidophile isolated from industrial bioreactors during the processing of the gold-bearing pyrite-arsenopyrite concentrate at 38–42 °C. Most strains of this species are obligate organoheterotrophs that do not use f
Externí odkaz:
https://doaj.org/article/31b05581db024a99b67c62e1a685ea58