Matches in SemOpenAlex for { <https://semopenalex.org/work/W1520373334> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W1520373334 endingPage "441" @default.
- W1520373334 startingPage "431" @default.
- W1520373334 abstract "The bacterial leaching of refractory arsenic-bearing gold ores from different deposits were investigated to determine the effects of mineralogy on the fate of arsenic during processing and to assess the effectiveness of biological pre-treatment on gold extraction. Experiments were conducted using a mixed culture of iron and sulphur oxidising bacteria dominated by Thiobacillus ferrooxidans. The speciation of arsenic during bioleaching was studied using polarography. Leaching of a concentrate which was predominantly arsenopyrite resulted in 80% of the leached arsenic reporting in solution as arsenic(Ill) at the end of the bacterial oxidation stage. Study of the oxidation of concentrates from different ore deposits with various ratios of pyrite to arsenopyrite showed that the amount of pyrite was an important factor in determining the dominating arsenic oxidation state in the leach solutions. Iron(Ill) alone was found not to be able to oxidise arsenic(m), instead pyrite was needed as a catalyst. It was found that adding pyrite and iron(m) to arsenopyrite concentrates promotes the formation of arsenic(V) leaving less than 1% of the extracted arsenic as arsenic(m). Furthermore a strong dependence of pyrite leaching and arsenic(Ill) oxidation was demonstrated. These results demonstrate the importance of ore composition in terms of pyrite to arsenopyrite ratio in the production of environmentally acceptable biooxidation residues containing arsenic(V)." @default.
- W1520373334 created "2016-06-24" @default.
- W1520373334 creator A5032155850 @default.
- W1520373334 creator A5084230883 @default.
- W1520373334 creator A5089121730 @default.
- W1520373334 date "1999-01-01" @default.
- W1520373334 modified "2023-09-23" @default.
- W1520373334 title "The effect of ore mineralogy on the speciation of arsenic in bacterial oxidation of refractory arsenical gold ores." @default.
- W1520373334 cites W1530879923 @default.
- W1520373334 cites W1963954192 @default.
- W1520373334 cites W1972617824 @default.
- W1520373334 cites W1986515601 @default.
- W1520373334 cites W1995707097 @default.
- W1520373334 cites W2038375848 @default.
- W1520373334 cites W2055526505 @default.
- W1520373334 cites W2115878304 @default.
- W1520373334 cites W2124495586 @default.
- W1520373334 doi "https://doi.org/10.1016/s1572-4409(99)80044-3" @default.
- W1520373334 hasPublicationYear "1999" @default.
- W1520373334 type Work @default.
- W1520373334 sameAs 1520373334 @default.
- W1520373334 citedByCount "6" @default.
- W1520373334 countsByYear W15203733342015 @default.
- W1520373334 countsByYear W15203733342020 @default.
- W1520373334 countsByYear W15203733342023 @default.
- W1520373334 crossrefType "book-chapter" @default.
- W1520373334 hasAuthorship W1520373334A5032155850 @default.
- W1520373334 hasAuthorship W1520373334A5084230883 @default.
- W1520373334 hasAuthorship W1520373334A5089121730 @default.
- W1520373334 hasConcept C107872376 @default.
- W1520373334 hasConcept C118628717 @default.
- W1520373334 hasConcept C127313418 @default.
- W1520373334 hasConcept C159390177 @default.
- W1520373334 hasConcept C159750122 @default.
- W1520373334 hasConcept C178790620 @default.
- W1520373334 hasConcept C179104552 @default.
- W1520373334 hasConcept C185592680 @default.
- W1520373334 hasConcept C191897082 @default.
- W1520373334 hasConcept C192562407 @default.
- W1520373334 hasConcept C199289684 @default.
- W1520373334 hasConcept C2776062231 @default.
- W1520373334 hasConcept C2778188036 @default.
- W1520373334 hasConcept C2778455166 @default.
- W1520373334 hasConcept C2780756512 @default.
- W1520373334 hasConcept C502230775 @default.
- W1520373334 hasConcept C544778455 @default.
- W1520373334 hasConcept C90982505 @default.
- W1520373334 hasConcept C98380375 @default.
- W1520373334 hasConceptScore W1520373334C107872376 @default.
- W1520373334 hasConceptScore W1520373334C118628717 @default.
- W1520373334 hasConceptScore W1520373334C127313418 @default.
- W1520373334 hasConceptScore W1520373334C159390177 @default.
- W1520373334 hasConceptScore W1520373334C159750122 @default.
- W1520373334 hasConceptScore W1520373334C178790620 @default.
- W1520373334 hasConceptScore W1520373334C179104552 @default.
- W1520373334 hasConceptScore W1520373334C185592680 @default.
- W1520373334 hasConceptScore W1520373334C191897082 @default.
- W1520373334 hasConceptScore W1520373334C192562407 @default.
- W1520373334 hasConceptScore W1520373334C199289684 @default.
- W1520373334 hasConceptScore W1520373334C2776062231 @default.
- W1520373334 hasConceptScore W1520373334C2778188036 @default.
- W1520373334 hasConceptScore W1520373334C2778455166 @default.
- W1520373334 hasConceptScore W1520373334C2780756512 @default.
- W1520373334 hasConceptScore W1520373334C502230775 @default.
- W1520373334 hasConceptScore W1520373334C544778455 @default.
- W1520373334 hasConceptScore W1520373334C90982505 @default.
- W1520373334 hasConceptScore W1520373334C98380375 @default.
- W1520373334 hasLocation W15203733341 @default.
- W1520373334 hasOpenAccess W1520373334 @default.
- W1520373334 hasPrimaryLocation W15203733341 @default.
- W1520373334 hasRelatedWork W1520373334 @default.
- W1520373334 hasRelatedWork W2059392538 @default.
- W1520373334 hasRelatedWork W2075869396 @default.
- W1520373334 hasRelatedWork W2080834288 @default.
- W1520373334 hasRelatedWork W2334737630 @default.
- W1520373334 hasRelatedWork W2356195485 @default.
- W1520373334 hasRelatedWork W2460079895 @default.
- W1520373334 hasRelatedWork W2507821296 @default.
- W1520373334 hasRelatedWork W4241767707 @default.
- W1520373334 hasRelatedWork W4253266916 @default.
- W1520373334 isParatext "false" @default.
- W1520373334 isRetracted "false" @default.
- W1520373334 magId "1520373334" @default.
- W1520373334 workType "book-chapter" @default.