Matches in SemOpenAlex for { <https://semopenalex.org/work/W2071618891> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2071618891 endingPage "34" @default.
- W2071618891 startingPage "28" @default.
- W2071618891 abstract "The chemical oxidation of the arsenopyrite and pyrite gold-bearing concentrates with the microbially-produced Fe3+ solution was investigated. During the chemical stage, the most easily oxidized sulfidic elements were shown to be removed from the concentrates. After chemical leaching of the arsenopyrite concentrate, the oxidation levels for sulfidic iron and arsenic were 64.3% and 31.1%, respectively; for the pyrite concentrate, the oxidation levels of sulfidic iron and sulfur were 21.2 and 25.8%, respectively. Biooxidation of the arsenopyrite and pyrite gold-bearing concentrates has been carried out in the onestage (control) and two-stage (experimental) variants in reactors in feed batch mode. An activity of biooxidation of sulphidic concentrates without preliminary oxidation by Fe3+ solution (one-stage process) during the control experiments and after preliminary oxidation of Fe3+ solution (two-stage process) in experimental variants was studied. At 4 days residence time, the oxidation level for sulfidic arsenic from the arsenopyrite concentrate was 38.4% in the control process and 92.8% in the experimental one; gold recovery by cyanidation was 67.76% and 92.95%, respectively. At 8 days residence time, the results of the control process were lower, than of experimental process after 4 days of oxidation: the oxidation level of sulfidic arsenic was 59.7%; gold recovery was 82.38%. In the control variant, the time of biooxidation of the pyrite concentrate was 36 days; in the experimental variant, it was 5 days. The oxidation levels for sulfidic iron and sulfur were 40.3 and 55.7%, respectively; gold recovery by cyanidation was 76.9%. The results obtained demonstrate that two-stage bacterial–chemical processes are promising for intensification of the biohydrometallurgical processing of refractory sulfidic concentrates containing not only nonferrous metals, but noble metals as well." @default.
- W2071618891 created "2016-06-24" @default.
- W2071618891 creator A5036869091 @default.
- W2071618891 creator A5037820996 @default.
- W2071618891 creator A5067159408 @default.
- W2071618891 date "2010-02-01" @default.
- W2071618891 modified "2023-10-01" @default.
- W2071618891 title "Two-stage bacterial–chemical oxidation of refractory gold-bearing sulfidic concentrates" @default.
- W2071618891 cites W1530879923 @default.
- W2071618891 cites W1986026132 @default.
- W2071618891 cites W1996127850 @default.
- W2071618891 cites W2001488918 @default.
- W2071618891 cites W2011167938 @default.
- W2071618891 cites W2021061107 @default.
- W2071618891 cites W2030332020 @default.
- W2071618891 cites W2044107764 @default.
- W2071618891 cites W2051857036 @default.
- W2071618891 cites W2077014756 @default.
- W2071618891 cites W2146428245 @default.
- W2071618891 cites W2160585428 @default.
- W2071618891 cites W2164502819 @default.
- W2071618891 doi "https://doi.org/10.1016/j.hydromet.2009.11.009" @default.
- W2071618891 hasPublicationYear "2010" @default.
- W2071618891 type Work @default.
- W2071618891 sameAs 2071618891 @default.
- W2071618891 citedByCount "35" @default.
- W2071618891 countsByYear W20716188912012 @default.
- W2071618891 countsByYear W20716188912013 @default.
- W2071618891 countsByYear W20716188912014 @default.
- W2071618891 countsByYear W20716188912015 @default.
- W2071618891 countsByYear W20716188912016 @default.
- W2071618891 countsByYear W20716188912017 @default.
- W2071618891 countsByYear W20716188912018 @default.
- W2071618891 countsByYear W20716188912019 @default.
- W2071618891 countsByYear W20716188912020 @default.
- W2071618891 countsByYear W20716188912021 @default.
- W2071618891 countsByYear W20716188912022 @default.
- W2071618891 countsByYear W20716188912023 @default.
- W2071618891 crossrefType "journal-article" @default.
- W2071618891 hasAuthorship W2071618891A5036869091 @default.
- W2071618891 hasAuthorship W2071618891A5037820996 @default.
- W2071618891 hasAuthorship W2071618891A5067159408 @default.
- W2071618891 hasConcept C107872376 @default.
- W2071618891 hasConcept C118628717 @default.
- W2071618891 hasConcept C127313418 @default.
- W2071618891 hasConcept C159390177 @default.
- W2071618891 hasConcept C159750122 @default.
- W2071618891 hasConcept C178790620 @default.
- W2071618891 hasConcept C179104552 @default.
- W2071618891 hasConcept C18535130 @default.
- W2071618891 hasConcept C185592680 @default.
- W2071618891 hasConcept C199289684 @default.
- W2071618891 hasConcept C2776062231 @default.
- W2071618891 hasConcept C2778188036 @default.
- W2071618891 hasConcept C2778455166 @default.
- W2071618891 hasConcept C2780756512 @default.
- W2071618891 hasConcept C502230775 @default.
- W2071618891 hasConcept C518881349 @default.
- W2071618891 hasConcept C544778455 @default.
- W2071618891 hasConcept C90982505 @default.
- W2071618891 hasConceptScore W2071618891C107872376 @default.
- W2071618891 hasConceptScore W2071618891C118628717 @default.
- W2071618891 hasConceptScore W2071618891C127313418 @default.
- W2071618891 hasConceptScore W2071618891C159390177 @default.
- W2071618891 hasConceptScore W2071618891C159750122 @default.
- W2071618891 hasConceptScore W2071618891C178790620 @default.
- W2071618891 hasConceptScore W2071618891C179104552 @default.
- W2071618891 hasConceptScore W2071618891C18535130 @default.
- W2071618891 hasConceptScore W2071618891C185592680 @default.
- W2071618891 hasConceptScore W2071618891C199289684 @default.
- W2071618891 hasConceptScore W2071618891C2776062231 @default.
- W2071618891 hasConceptScore W2071618891C2778188036 @default.
- W2071618891 hasConceptScore W2071618891C2778455166 @default.
- W2071618891 hasConceptScore W2071618891C2780756512 @default.
- W2071618891 hasConceptScore W2071618891C502230775 @default.
- W2071618891 hasConceptScore W2071618891C518881349 @default.
- W2071618891 hasConceptScore W2071618891C544778455 @default.
- W2071618891 hasConceptScore W2071618891C90982505 @default.
- W2071618891 hasIssue "1-2" @default.
- W2071618891 hasLocation W20716188911 @default.
- W2071618891 hasOpenAccess W2071618891 @default.
- W2071618891 hasPrimaryLocation W20716188911 @default.
- W2071618891 hasRelatedWork W1520373334 @default.
- W2071618891 hasRelatedWork W1972340604 @default.
- W2071618891 hasRelatedWork W1995925928 @default.
- W2071618891 hasRelatedWork W2041306704 @default.
- W2071618891 hasRelatedWork W2054135704 @default.
- W2071618891 hasRelatedWork W2072629819 @default.
- W2071618891 hasRelatedWork W2245568566 @default.
- W2071618891 hasRelatedWork W2381673558 @default.
- W2071618891 hasRelatedWork W2391937403 @default.
- W2071618891 hasRelatedWork W4247247082 @default.
- W2071618891 hasVolume "101" @default.
- W2071618891 isParatext "false" @default.
- W2071618891 isRetracted "false" @default.
- W2071618891 magId "2071618891" @default.
- W2071618891 workType "article" @default.