EXTRACTION OF RARE EARTH ELEMENTS WITH DEEP EUTECTIC SOLVENTS
It relates to process for the extraction of rare earth elements from a starting product containing them in metal or alloy form which comprises: a) contacting the starting product containing rare earth elements in metal or alloy form with a deep eutectic solvent that consists of a mixture of a hydrog...
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| creator | SIRIWARDANA, Amal SÁNCHEZ CUPIDO, Laura HIDALGO BETANZOS, Jokin NIETO MAESTRE, Francisco Javier |
| description | It relates to process for the extraction of rare earth elements from a starting product containing them in metal or alloy form which comprises: a) contacting the starting product containing rare earth elements in metal or alloy form with a deep eutectic solvent that consists of a mixture of a hydrogen bond acceptor (HBA) compound (A) selected from a salt of the formula Cat + X - (I), betaine or a salt thereof, and carnitine or a salt thereof; and a hydrogen bond donor (HBD) compound (B) in a molar ratio of (A) to (B) from 1:10 to 10:1, wherein the deep eutectic solvent is capable of extracting at least 50% w/w of one or more rare earth elements contained in the starting solid product in less than 5 hours, and b) separating the solvent containing the rare earth elements in dissolution from the undissolved solid. |
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and a hydrogen bond donor (HBD) compound (B) in a molar ratio of (A) to (B) from 1:10 to 10:1, wherein the deep eutectic solvent is capable of extracting at least 50% w/w of one or more rare earth elements contained in the starting solid product in less than 5 hours, and b) separating the solvent containing the rare earth elements in dissolution from the undissolved solid.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200122&DB=EPODOC&CC=EP&NR=3596241A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200122&DB=EPODOC&CC=EP&NR=3596241A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SIRIWARDANA, Amal</creatorcontrib><creatorcontrib>SÁNCHEZ CUPIDO, Laura</creatorcontrib><creatorcontrib>HIDALGO BETANZOS, Jokin</creatorcontrib><creatorcontrib>NIETO MAESTRE, Francisco Javier</creatorcontrib><title>EXTRACTION OF RARE EARTH ELEMENTS WITH DEEP EUTECTIC SOLVENTS</title><description>It relates to process for the extraction of rare earth elements from a starting product containing them in metal or alloy form which comprises: a) contacting the starting product containing rare earth elements in metal or alloy form with a deep eutectic solvent that consists of a mixture of a hydrogen bond acceptor (HBA) compound (A) selected from a salt of the formula Cat + X - (I), betaine or a salt thereof, and carnitine or a salt thereof; 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and a hydrogen bond donor (HBD) compound (B) in a molar ratio of (A) to (B) from 1:10 to 10:1, wherein the deep eutectic solvent is capable of extracting at least 50% w/w of one or more rare earth elements contained in the starting solid product in less than 5 hours, and b) separating the solvent containing the rare earth elements in dissolution from the undissolved solid.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | EXTRACTION OF RARE EARTH ELEMENTS WITH DEEP EUTECTIC SOLVENTS |
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