Matches in SemOpenAlex for { <https://semopenalex.org/work/W2883671144> ?p ?o ?g. }
Showing items 1 to 64 of
64
with 100 items per page.
- W2883671144 abstract "Dexing Copper Deposit, located in Jiangxi province, China, is one of the largest porphyry copper deposits in the world, the copper content of which exceeds eight million tonnes. Fine hundred million tonnes of waste rock with grades between 0.1 and 0.3 will be produced during open pit mining of Dexing. The amount of copper metal is 1.2 million tonnes. In order to extract copper metal from those secondary resources and resolve the environmental problems caused by acidic water and heavy metals released from the waste rock dump, a dump bioleaching-solvent extraction-electrowinning plant was designed based on a series of experimental investigations. Presently, there are a number of challenges faced by this plant, such as low recovery efficiency, low Cu2+ concentration and limited production. The investigation shows that the low-grade of the dump, refractoriness of chalcopyrite, small sprinkling area, leakage of pad, small bacteria population, low dump permeability are the main factors that contribute to the challenges. Several measures were exercised by the plant, such as separating ores from rocks, stripping and loosening the surface layer of dump, loosening the entire dump by use of explosives. Besides those challenges, stability of the high and steep slope of the dump is a hidden danger to which much attention is not paid. The height of the dump exceeds 70 m, and the inclination of the slope is 55°. The failure of dump could result in a dangerous disaster. Mechanical properties of the waste rock before and after leaching were investigated. The result shows that the normal stress, shear strength and cohesion decreased sharply during the leaching process." @default.
- W2883671144 created "2018-08-03" @default.
- W2883671144 creator A5000374321 @default.
- W2883671144 creator A5007746132 @default.
- W2883671144 creator A5027100218 @default.
- W2883671144 creator A5082831342 @default.
- W2883671144 date "2008-01-01" @default.
- W2883671144 modified "2023-10-17" @default.
- W2883671144 title "Challenges Faced by Dexing Copper Mine ― A Case Study of Dump Leaching in China" @default.
- W2883671144 doi "https://doi.org/10.36487/acg_repo/802_16" @default.
- W2883671144 hasPublicationYear "2008" @default.
- W2883671144 type Work @default.
- W2883671144 sameAs 2883671144 @default.
- W2883671144 citedByCount "0" @default.
- W2883671144 crossrefType "proceedings-article" @default.
- W2883671144 hasAuthorship W2883671144A5000374321 @default.
- W2883671144 hasAuthorship W2883671144A5007746132 @default.
- W2883671144 hasAuthorship W2883671144A5027100218 @default.
- W2883671144 hasAuthorship W2883671144A5082831342 @default.
- W2883671144 hasConcept C127313418 @default.
- W2883671144 hasConcept C127413603 @default.
- W2883671144 hasConcept C159390177 @default.
- W2883671144 hasConcept C159750122 @default.
- W2883671144 hasConcept C16674752 @default.
- W2883671144 hasConcept C184977646 @default.
- W2883671144 hasConcept C191897082 @default.
- W2883671144 hasConcept C192562407 @default.
- W2883671144 hasConcept C2994103380 @default.
- W2883671144 hasConcept C39432304 @default.
- W2883671144 hasConcept C544778455 @default.
- W2883671144 hasConcept C548081761 @default.
- W2883671144 hasConcept C90982505 @default.
- W2883671144 hasConcept C98380375 @default.
- W2883671144 hasConceptScore W2883671144C127313418 @default.
- W2883671144 hasConceptScore W2883671144C127413603 @default.
- W2883671144 hasConceptScore W2883671144C159390177 @default.
- W2883671144 hasConceptScore W2883671144C159750122 @default.
- W2883671144 hasConceptScore W2883671144C16674752 @default.
- W2883671144 hasConceptScore W2883671144C184977646 @default.
- W2883671144 hasConceptScore W2883671144C191897082 @default.
- W2883671144 hasConceptScore W2883671144C192562407 @default.
- W2883671144 hasConceptScore W2883671144C2994103380 @default.
- W2883671144 hasConceptScore W2883671144C39432304 @default.
- W2883671144 hasConceptScore W2883671144C544778455 @default.
- W2883671144 hasConceptScore W2883671144C548081761 @default.
- W2883671144 hasConceptScore W2883671144C90982505 @default.
- W2883671144 hasConceptScore W2883671144C98380375 @default.
- W2883671144 hasLocation W28836711441 @default.
- W2883671144 hasOpenAccess W2883671144 @default.
- W2883671144 hasPrimaryLocation W28836711441 @default.
- W2883671144 hasRelatedWork W2016534760 @default.
- W2883671144 hasRelatedWork W2030602320 @default.
- W2883671144 hasRelatedWork W2153460529 @default.
- W2883671144 hasRelatedWork W2370473730 @default.
- W2883671144 hasRelatedWork W2374478928 @default.
- W2883671144 hasRelatedWork W2378767619 @default.
- W2883671144 hasRelatedWork W2379426531 @default.
- W2883671144 hasRelatedWork W2388880753 @default.
- W2883671144 hasRelatedWork W2902925693 @default.
- W2883671144 hasRelatedWork W3086148342 @default.
- W2883671144 isParatext "false" @default.
- W2883671144 isRetracted "false" @default.
- W2883671144 magId "2883671144" @default.
- W2883671144 workType "article" @default.