Patent ID: 7964688
Filing Date: 2011-06-21
Classification: B01J,C02F,C08F

Abstract:
1. A method of using a polymer to recover a metal, the method comprising: providing an insoluble also known as “Poly” as follows, wherein R is H; R′, R″, and R″′ are one of the structures from the group of structures which include alkyl, alkenyl, alkynyl, and aryl structures; n is an integer number of methylene groups; and n′ is an integer number of monomer units; providing a metal ion primary solution with the poly and the metal ion primary solution having a ratio of Poly to metal ion solution; providing the mixing the Poly with the metal ion solution by agitation to thereby form a secondary solution containing a metal ion and Poly complex; providing the filtration of the secondary solution with the filtration resulting in a third solution and a filter cake, the filter cake containing the metal ion and Poly complex; providing the separation of the Poly and the metal ion contained in the filter cake by suspending the solid filter cake in a dilute acid solution; providing agitation of the dilute acid solution; providing filtering of the dilute acid solution, the filtering thereby separating the filter cake containing the Poly and the dilute acid solution containing the metal ion; providing a dilute base and mixing the dilute base with the dilute acid solution forming a fourth solution, thereby precipitating the metal ion out of solution; and providing the pouring off of the fourth solution and leaving the precipitated metal ion for recovery.