WATER-SOLUBLE POLYMERS FOR RECOVERY OF METALS FROM SOLIDS
摘要
<p>A process of selectively separating a target metal contained in a solid matrix from the solid matrix by contacting the solid matrix containing a target metal with an aqueous solution including a water-soluble polymer adapted for complexation with the target metal for sufficient time whereby a water-soluble polymer-target metal complex is formed, and separating the solution including the water-soluble polymer-target metal complex from the solid matrix. The figure illustrates the process, wherein a metal containing feed solution is fed via line (1) to a solution of water soluble polymer in tank (2). A reaction mixture is conveyed via line (3), pump (4) and line (5) to separation device (6) which is preferably an ultrafilter. The separation is mormally accompanied by recirculating the mixture through the membrane device having a throttle valve (7) in line (8) to maintain a pressure of less than 60 psi in the membrane unit. Effluent in line (9) is free of the target metal.</p>
申请公布号
WO9638227(A1)
申请公布日期
1996.12.05
申请号
WO1996US07848
申请日期
1996.05.30
申请人
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA;SMITH, BARBARA, F.;ROBISON, THOMAS, W.;SAUER, NANCY, N.;EHLER, DEBORAH, S.
发明人
SMITH, BARBARA, F.;ROBISON, THOMAS, W.;SAUER, NANCY, N.;EHLER, DEBORAH, S.