Title:
【発明の名称】金属を除去、分離及び濃縮するための方法
Document Type and Number:
Japanese Patent JP3506707
Kind Code:
B2
Abstract:
A method for the removal, separation, and concentration of alkali metal, alkaline earth metal, Pb and/or Tl cations from a source solution which may contain larger concentrations of other ions comprises bringing the source solution into contact with a compound comprising an oxygen donor macrocycle-containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The ligand portion(s) of the compound has affinity for alkali metal, alkaline earth metal, Pb and/or Tl thereby removing them from the source solution. The alkali metal, alkaline earth metal, Pb and/or Tl cations are then removed from the compound through contact with a much smaller volume of a receiving solution in which these cations are either soluble or which has greater affinity for such cations than does the oxygen donor macrocyclic ligand thereby quantitatively stripping the complexed cations from the ligand and recovering them in concentrated form in said receiving solution. The concentrated cations thus removed may be further separated and recovered by known methods. The process is useful in the removal of alkali metal, alkaline earth metal, Pb and Tl cations from a variety of source solutions such as from semiconductor, nuclear waste cleanup, metals refining, electric power, and other industrial enterprises. The invention is also drawn to the oxygen donor macrocycle-containing ligands covalently bonded through a spacer grouping to a hydrophilic inorganic solid support material.
Inventors:
Cracowiak, Kurzystoff Yi
Turbet, Bryon Jay
Anhao Yun
Johnson, Deborah F
Bruning, Ronald El
Turbet, Bryon Jay
Anhao Yun
Johnson, Deborah F
Bruning, Ronald El
Application Number:
JP52559994A
Publication Date:
March 15, 2004
Filing Date:
May 06, 1994
Export Citation:
Assignee:
IBC Advanced Technologies, Inc.
International Classes:
B01J20/26; C01G55/00; C07D327/00; C07F7/08; C09K3/00; C22B3/26; C22B13/00; C22B26/00; B01D15/00; C22B26/10; C22B26/20; C22B61/00; (IPC1-7): B01D15/00; B01J20/26; C07F7/08; C09K3/00; C22B13/00; C22B26/10; C22B26/20; C22B61/00
Domestic Patent References:
| JP7502926A | ||||
| JP7500767A |
Other References:
【文献】米国特許5179213(US,A)
【文献】米国特許5078978(US,A)
【文献】米国特許5074911(US,A)
【文献】米国特許5078978(US,A)
【文献】米国特許5074911(US,A)
Attorney, Agent or Firm:
Youichi Ohshima