{"data":{"id":"10.6084/m9.figshare.5668519.v1","type":"dois","attributes":{"doi":"10.6084/m9.figshare.5668519.v1","prefix":"10.6084","suffix":"m9.figshare.5668519.v1","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Pereira, Antonio Clareti","nameType":"Personal","givenName":"Antonio Clareti","familyName":"Pereira","affiliation":[],"nameIdentifiers":[]},{"name":"Barbosa, Viviane Da Silva Borges","nameType":"Personal","givenName":"Viviane Da Silva Borges","familyName":"Barbosa","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Effectiveness acidic pre-cleaning for copper-gold ore"}],"publisher":"SciELO journals","container":{},"publicationYear":2017,"subjects":[{"subject":"Geology"},{"subject":"FOS: Earth and related environmental sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Earth and related environmental sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Mechanical Engineering"},{"subject":"FOS: Mechanical engineering","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Mechanical engineering","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Mechanics"},{"subject":"91207 Metals and Alloy Materials","subjectScheme":"FOR"},{"subject":"FOS: Materials engineering","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Materials engineering","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[],"dates":[{"date":"2017-12-05","dateType":"Created"},{"date":"2021-03-23","dateType":"Updated"},{"date":"2017","dateType":"Issued"}],"language":null,"types":{"ris":"DATA","bibtex":"misc","citeproc":"dataset","schemaOrg":"Dataset","resourceType":"Dataset","resourceTypeGeneral":"Dataset"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1590/0370-44672016700126","relatedIdentifierType":"DOI"},{"relationType":"IsIdenticalTo","relatedIdentifier":"10.6084/m9.figshare.5668519","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["1590556 Bytes"],"formats":[],"version":null,"rightsList":[{"rights":"Creative Commons Attribution 4.0 International","rightsUri":"https://creativecommons.org/licenses/by/4.0/legalcode","schemeUri":"https://spdx.org/licenses/","rightsIdentifier":"cc-by-4.0","rightsIdentifierScheme":"SPDX"}],"descriptions":[{"description":"Abstract The presence of copper-bearing minerals is known to bring on many challenges during the cyanidation of gold ore, like high consumption of cyanide and low extraction of metal, which are undesirable impacts on the auriferous recovery in the subsequent process step. The high copper solubility in cyanide prevents the direct use of classical hydrometallurgical processes for the extraction of gold by cyanidation. Additionally, the application of a conventional flotation process to extract copper is further complicated when it is oxidized. As a result, an acid pre-leaching process was applied in order to clean the ore of these copper minerals that are cyanide consumers. The objective was to evaluate the amount of soluble copper in cyanide before and after acidic cleaning. From a gold ore containing copper, the study selected four samples containing 0.22%, 0.55%, 1.00% and 1.36% of copper. For direct cyanidation of the ore without pre-treatment, copper extraction by cyanide complexing ranged from 8 to 83%. In contrast, the pre-treatment carried out with sulfuric acid extracted 24% to 99% of initial copper and subsequent cyanidation extracted 0.13 to 1.54% of initial copper. The study also showed that the copper contained in the secondary minerals is more easily extracted by cyanide (83%), being followed by the copper oxy-hydroxide minerals (60%), while the copper contained in the manganese oxide is less complexed by cyanide (8% a 12%). It was possible to observe that minerals with low acid solubility also have low solubility in cyanide. Cyanide consumption decreased by about 2.5 times and gold recovery increased to above 94% after acidic pre-cleaning.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"xml":"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","url":"https://scielo.figshare.com/articles/dataset/Effectiveness_acidic_pre-cleaning_for_copper-gold_ore/5668519/1","contentUrl":null,"metadataVersion":3,"schemaVersion":"http://datacite.org/schema/kernel-4","source":"m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