Phenolic chelate resin, process for producing the same, and...

Details Phenolic chelate resin, process for producing the same, and... Phenolic chelate resin, process for producing the same, and...

C - Chemistry, Metallurgy

08

G

53/374, 402/45,

C08G 14/06 (2006.01) B01J 45/00 (2006.01) C02F 1/28 (2006.01) C08G 8/24 (2006.01) C08G 8/28 (2006.01) C08G 14/12 (2006.01) C22B 9/00 (2006.01) C22B 60/02 (2006.01)

Patent

CA 1173995

ABSTRACT OF THE DISCLOSURE The phenolic chelate resin has a chelate-forming group wherein part or all of the hydrogen atoms in a primary and/or secondary alkylamino group introduced in a phenol nucleus are replaced by a methylenephosphonate group. Also disclosed is a process for producing such a chelate resin, and a method for recovering heavy metal ions with such a resin. The resin has particularly high selectivity for adsorbing uranium ions, as well as high heat, acid and alkali resistance as well as dimensional stability The resin is very effective for recovering uranium from various uranium containing solutions such as sea water, crude phosphoric acid fertilizer solutions; low- grade uranium ore, waste water from uranium refining, and uranium mine water.

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