Matches in SemOpenAlex for { <https://semopenalex.org/work/W2072760102> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2072760102 endingPage "212" @default.
- W2072760102 startingPage "206" @default.
- W2072760102 abstract "The high floatability of wavellite with dodecylamine may be attributed to both chemical and electrostatic adsorption mechanisms. Precipitation of insoluble salts and formation of surface chemical complexes are the most likely hypothesis for the chemical interactions in this system. ► Wavellite presents a higher floatability with dodecylamine in alkaline pH. ► The high floatability values obtained in the pH range of 10.5–12 may be due to amine precipitation at the wavellite surface. ► At pH 8–10, the adsorption may be due to electrostatic forces. ► During the bench experiments amines attained the lowest phosphorus grades at the final concentrate. Along with other deleterious elements, phosphorus is an extremely harmful element found in iron ores used as a raw material in the steel making process. It is responsible for increasing its hardness and brittleness while decreasing its ductility . Reducing the phosphorus content in ores when the apatite is the main phosphorous mineral can be easily achieved through reverse flotation making use of anionic collectors to float the apatite and sodium silicate to depress the iron oxides . However, the phosphorus removal from iron ores other than igneous formations has been a challenge for most of the iron ore operations. This research aims to make a preliminary study of wavellite’s floatability and to evaluate the reduction of phosphorus content by froth flotation from a Brazilian iron ore with a P content of 0.82%. Microflotation experiments of wavellite using anionic, cationic and amphoteric collectors were carried out in the basic pH range. Sodium silicate was evaluated as a depressant, and the presence of this reagent did not change significantly the wavellite’s floatability. Dodecylamine showed the best floatability results, which were around 100% above pH 8. Bench flotation experiments confirmed the results of the microflotation experiments. During the bench experiments, flotation with amine as collector gave the lowest phosphorus content at the final iron concentrate. A concentrate containing 0.201% P with a mass recovery of 62.31% was achieved when a 150 g/t dosage of Flotigam EDA (an amine type collector) was used. In a bench experiment with Flotigam 2835 2L as collector led to a concentrate containing 0.312% P with a mass recovery of 90.24%. The collector Flotigam 2835 2L appeared to be more selective onto phosphates and aluminum silicates than the other amine." @default.
- W2072760102 created "2016-06-24" @default.
- W2072760102 creator A5008283622 @default.
- W2072760102 creator A5026944009 @default.
- W2072760102 creator A5032316247 @default.
- W2072760102 creator A5065382749 @default.
- W2072760102 date "2012-12-01" @default.
- W2072760102 modified "2023-10-18" @default.
- W2072760102 title "Floatability studies of wavellite and preliminary results on phosphorus removal from a Brazilian iron ore by froth flotation" @default.
- W2072760102 cites W1963553373 @default.
- W2072760102 cites W1978225169 @default.
- W2072760102 cites W1982699782 @default.
- W2072760102 cites W2012913746 @default.
- W2072760102 cites W2035602588 @default.
- W2072760102 cites W2037840234 @default.
- W2072760102 cites W2088792592 @default.
- W2072760102 cites W2104509815 @default.
- W2072760102 cites W2108513770 @default.
- W2072760102 cites W2119556860 @default.
- W2072760102 cites W2137761201 @default.
- W2072760102 doi "https://doi.org/10.1016/j.mineng.2012.06.004" @default.
- W2072760102 hasPublicationYear "2012" @default.
- W2072760102 type Work @default.
- W2072760102 sameAs 2072760102 @default.
- W2072760102 citedByCount "48" @default.
- W2072760102 countsByYear W20727601022013 @default.
- W2072760102 countsByYear W20727601022014 @default.
- W2072760102 countsByYear W20727601022015 @default.
- W2072760102 countsByYear W20727601022016 @default.
- W2072760102 countsByYear W20727601022017 @default.
- W2072760102 countsByYear W20727601022018 @default.
- W2072760102 countsByYear W20727601022019 @default.
- W2072760102 countsByYear W20727601022020 @default.
- W2072760102 countsByYear W20727601022021 @default.
- W2072760102 countsByYear W20727601022022 @default.
- W2072760102 countsByYear W20727601022023 @default.
- W2072760102 crossrefType "journal-article" @default.
- W2072760102 hasAuthorship W2072760102A5008283622 @default.
- W2072760102 hasAuthorship W2072760102A5026944009 @default.
- W2072760102 hasAuthorship W2072760102A5032316247 @default.
- W2072760102 hasAuthorship W2072760102A5065382749 @default.
- W2072760102 hasConcept C107054158 @default.
- W2072760102 hasConcept C121332964 @default.
- W2072760102 hasConcept C150394285 @default.
- W2072760102 hasConcept C153294291 @default.
- W2072760102 hasConcept C154366045 @default.
- W2072760102 hasConcept C178790620 @default.
- W2072760102 hasConcept C179104552 @default.
- W2072760102 hasConcept C185592680 @default.
- W2072760102 hasConcept C191897082 @default.
- W2072760102 hasConcept C192562407 @default.
- W2072760102 hasConcept C199289684 @default.
- W2072760102 hasConcept C2777025580 @default.
- W2072760102 hasConcept C2777746296 @default.
- W2072760102 hasConcept C2779748816 @default.
- W2072760102 hasConcept C2779947509 @default.
- W2072760102 hasConcept C510538283 @default.
- W2072760102 hasConcept C71924100 @default.
- W2072760102 hasConcept C98274493 @default.
- W2072760102 hasConceptScore W2072760102C107054158 @default.
- W2072760102 hasConceptScore W2072760102C121332964 @default.
- W2072760102 hasConceptScore W2072760102C150394285 @default.
- W2072760102 hasConceptScore W2072760102C153294291 @default.
- W2072760102 hasConceptScore W2072760102C154366045 @default.
- W2072760102 hasConceptScore W2072760102C178790620 @default.
- W2072760102 hasConceptScore W2072760102C179104552 @default.
- W2072760102 hasConceptScore W2072760102C185592680 @default.
- W2072760102 hasConceptScore W2072760102C191897082 @default.
- W2072760102 hasConceptScore W2072760102C192562407 @default.
- W2072760102 hasConceptScore W2072760102C199289684 @default.
- W2072760102 hasConceptScore W2072760102C2777025580 @default.
- W2072760102 hasConceptScore W2072760102C2777746296 @default.
- W2072760102 hasConceptScore W2072760102C2779748816 @default.
- W2072760102 hasConceptScore W2072760102C2779947509 @default.
- W2072760102 hasConceptScore W2072760102C510538283 @default.
- W2072760102 hasConceptScore W2072760102C71924100 @default.
- W2072760102 hasConceptScore W2072760102C98274493 @default.
- W2072760102 hasLocation W20727601021 @default.
- W2072760102 hasOpenAccess W2072760102 @default.
- W2072760102 hasPrimaryLocation W20727601021 @default.
- W2072760102 hasRelatedWork W179427729 @default.
- W2072760102 hasRelatedWork W2072760102 @default.
- W2072760102 hasRelatedWork W2073550758 @default.
- W2072760102 hasRelatedWork W2079742507 @default.
- W2072760102 hasRelatedWork W2287393623 @default.
- W2072760102 hasRelatedWork W2359424941 @default.
- W2072760102 hasRelatedWork W2575661361 @default.
- W2072760102 hasRelatedWork W3136051571 @default.
- W2072760102 hasRelatedWork W3206770533 @default.
- W2072760102 hasRelatedWork W2740079099 @default.
- W2072760102 hasVolume "39" @default.
- W2072760102 isParatext "false" @default.
- W2072760102 isRetracted "false" @default.
- W2072760102 magId "2072760102" @default.
- W2072760102 workType "article" @default.