Porous hollow fiber membrane having chelate formability and...

Details Porous hollow fiber membrane having chelate formability and... Porous hollow fiber membrane having chelate formability and...

B - Operations, Transporting

01

J

B01J 45/00 (2006.01) B01D 69/08 (2006.01) B01J 20/26 (2006.01) B01J 20/34 (2006.01) C01G 17/02 (2006.01) C02F 1/28 (2006.01) C02F 1/62 (2006.01) D06M 13/368 (2006.01) D06M 14/28 (2006.01) D06M 15/273 (2006.01) C22B 41/00 (2006.01)

Patent

CA 2373083

A chelate-forming porous hollow fiber membrane, characterized by being produced by reacting the residues of an epoxy compound radiation-grafted onto the surface of a polyethylene porous hollow fiber membrane with a compound which reacts with the residues to give residues containing a structure represented by formula (1) or (2) and a method for the recovery of germanium oxide, characterized by collecting germanium oxide contained in an aqueous solution by the use of the above hollow fiber membrane and then eluting the oxide.

L'invention concerne une membrane à fibre creuse poreuse à formation de chélate caractérisée en ce qu'elle est obtenue par mise en réaction des résidus d'un composé époxy greffé par rayonnement sur la surface d'une membrane à fibre creuse poreuse à formation de chélate avec un composé qui réagit en présence des résidus et produit des résidus contenant une structure de formule (1) ou (2), et un procédé de récupération d'oxyde de germanium caractérisé en ce qu'il collecte l'oxyde de germanium contenu dans une solution aqueuse en utilisant ladite membrane pour effectuer ensuite l'élution de l'oxyde.

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