FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3162194056> ?p ?o ?g. }

• W3162194056 endingPage "105626" @default.
• W3162194056 startingPage "105626" @default.
• W3162194056 abstract "The research presents an effective approach to achieve the selective separation of rare earth elements (REEs) from waste Nd-Fe-B magnets. Investigations show that the use of a two-stage roasting process can significantly reduce the amount of ammonium sulfate required and improve the separation efficiencies of REEs. During the first low-temperature roasting stage, almost 80% of REEs can be transformed into RE2(SO4)3 or NH4RE(SO4)2 at 400 °C within 1 h, whilst simultaneously iron and other impurities are converted into insoluble metal ammonium sulfates. These intermediate products can then be subjected to a further roasting procedure at 750 °C for 2 h, leading to an extraction of REEs of up to 96%. In contrast, the extraction of the related impurities: Fe, Al, Cu and Co is only 0.008%, 0.27%, 1.64% and 3.48%, respectively. Through the analysis and characterization of the calcine and leach residue, it was found that the decomposition of NH4RE(SO4)2 and the reaction of Fe2(SO4)3 and RE2O3 together improve the extraction of REEs during the second roasting stage. After separation of REEs, the main phase present in the leach residue is hematite, which can be recycled as a feedstock material for iron or steelmaking processes. Moreover, waste gases from this process – like NH3, SO2, and SO3 - can also be recovered and reused in the preparation of (NH4)2SO4, which significantly reduces the costs of the recycling operations. Overall, this newly developed process has considerable environmental and economic advantages for the recovery of valuable metals from waste Nd-Fe-B magnets." @default.
• W3162194056 created "2021-05-24" @default.
• W3162194056 creator A5003451898 @default.
• W3162194056 creator A5016129540 @default.
• W3162194056 creator A5027069782 @default.
• W3162194056 creator A5034448510 @default.
• W3162194056 creator A5050923581 @default.
• W3162194056 creator A5071513917 @default.
• W3162194056 date "2021-08-01" @default.
• W3162194056 modified "2023-10-01" @default.
• W3162194056 title "Selective separation of rare earths from spent Nd-Fe-B magnets using two-stage ammonium sulfate roasting followed by water leaching" @default.
• W3162194056 cites W1092088257 @default.
• W3162194056 cites W2000456360 @default.
• W3162194056 cites W2008217547 @default.
• W3162194056 cites W2044949992 @default.
• W3162194056 cites W2053539599 @default.
• W3162194056 cites W2058844061 @default.
• W3162194056 cites W2066870951 @default.
• W3162194056 cites W2072955551 @default.
• W3162194056 cites W2080897652 @default.
• W3162194056 cites W2082579878 @default.
• W3162194056 cites W2112674147 @default.
• W3162194056 cites W2113489436 @default.
• W3162194056 cites W2122051928 @default.
• W3162194056 cites W2124746338 @default.
• W3162194056 cites W2161690067 @default.
• W3162194056 cites W2314873092 @default.
• W3162194056 cites W2522817256 @default.
• W3162194056 cites W2550205946 @default.
• W3162194056 cites W2731880937 @default.
• W3162194056 cites W2760285786 @default.
• W3162194056 cites W2786456102 @default.
• W3162194056 cites W2793081742 @default.
• W3162194056 cites W2804820177 @default.
• W3162194056 cites W2807070730 @default.
• W3162194056 cites W2981849688 @default.
• W3162194056 cites W2982056385 @default.
• W3162194056 cites W3117880465 @default.
• W3162194056 cites W3133547360 @default.
• W3162194056 doi "https://doi.org/10.1016/j.hydromet.2021.105626" @default.
• W3162194056 hasPublicationYear "2021" @default.
• W3162194056 type Work @default.
• W3162194056 sameAs 3162194056 @default.
• W3162194056 citedByCount "16" @default.
• W3162194056 countsByYear W31621940562021 @default.
• W3162194056 countsByYear W31621940562022 @default.
• W3162194056 countsByYear W31621940562023 @default.
• W3162194056 crossrefType "journal-article" @default.
• W3162194056 hasAuthorship W3162194056A5003451898 @default.
• W3162194056 hasAuthorship W3162194056A5016129540 @default.
• W3162194056 hasAuthorship W3162194056A5027069782 @default.
• W3162194056 hasAuthorship W3162194056A5034448510 @default.
• W3162194056 hasAuthorship W3162194056A5050923581 @default.
• W3162194056 hasAuthorship W3162194056A5071513917 @default.
• W3162194056 hasConcept C140327455 @default.
• W3162194056 hasConcept C147789679 @default.
• W3162194056 hasConcept C159390177 @default.
• W3162194056 hasConcept C159750122 @default.
• W3162194056 hasConcept C161790260 @default.
• W3162194056 hasConcept C178790620 @default.
• W3162194056 hasConcept C185592680 @default.
• W3162194056 hasConcept C191897082 @default.
• W3162194056 hasConcept C192562407 @default.
• W3162194056 hasConcept C206139338 @default.
• W3162194056 hasConcept C2778343803 @default.
• W3162194056 hasConcept C2779833257 @default.
• W3162194056 hasConcept C2780232233 @default.
• W3162194056 hasConcept C2780925461 @default.
• W3162194056 hasConcept C39432304 @default.
• W3162194056 hasConcept C43617362 @default.
• W3162194056 hasConcept C4725764 @default.
• W3162194056 hasConcept C55493867 @default.
• W3162194056 hasConcept C7082614 @default.
• W3162194056 hasConcept C71987851 @default.
• W3162194056 hasConcept C90982505 @default.
• W3162194056 hasConceptScore W3162194056C140327455 @default.
• W3162194056 hasConceptScore W3162194056C147789679 @default.
• W3162194056 hasConceptScore W3162194056C159390177 @default.
• W3162194056 hasConceptScore W3162194056C159750122 @default.
• W3162194056 hasConceptScore W3162194056C161790260 @default.
• W3162194056 hasConceptScore W3162194056C178790620 @default.
• W3162194056 hasConceptScore W3162194056C185592680 @default.
• W3162194056 hasConceptScore W3162194056C191897082 @default.
• W3162194056 hasConceptScore W3162194056C192562407 @default.
• W3162194056 hasConceptScore W3162194056C206139338 @default.
• W3162194056 hasConceptScore W3162194056C2778343803 @default.
• W3162194056 hasConceptScore W3162194056C2779833257 @default.
• W3162194056 hasConceptScore W3162194056C2780232233 @default.
• W3162194056 hasConceptScore W3162194056C2780925461 @default.
• W3162194056 hasConceptScore W3162194056C39432304 @default.
• W3162194056 hasConceptScore W3162194056C43617362 @default.
• W3162194056 hasConceptScore W3162194056C4725764 @default.
• W3162194056 hasConceptScore W3162194056C55493867 @default.
• W3162194056 hasConceptScore W3162194056C7082614 @default.
• W3162194056 hasConceptScore W3162194056C71987851 @default.
• W3162194056 hasConceptScore W3162194056C90982505 @default.
• W3162194056 hasFunder F4320322665 @default.
• W3162194056 hasLocation W31621940561 @default.

• next