Title: Process for eliminating metal ions from a metal ion-containing liquid with solid chelate resins

Abstract: Metal ions, for example, heavy metal ions, alkaline earth metal ions and aluminium ions are eliminated by bringing a liquid containing the metal ions into contact with a special chelate resin in which chelating carboxylic anion groups are associated with basic amino acid cations, for example, lysine, ornithine, histidine, arginine, .alpha.,.beta.-diaminopropionic acid, .alpha.,.gamma.-diaminobutyric acid, L-citrulline and .delta.-oxylysine.

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Inventors: Yotsumoto, Kyousuke (Otsu, JP)
Hinoura, Minoru (Otsu, JP)
Goto, Motojiro (Otsu, JP)

Application Number: 790744
Filing Date: 1977-04-25
Publication_date: 1979-05-01
Assignee: Toray Industries, Inc. (Tokyo, JP)
Primary Class(es): 521/32 210/688
Other Classes:
US Patent Ref:

2875162	Feb, 1959	Morris	260/2.
2980607	Apr, 1961	Mock et al.	210/38.
2993782	Jul, 1961	Hampton	260/2.
3337480	Aug, 1967	Small	260/2.
3547686	Dec, 1970	D'Alelio	260/2.

Other Refs:
Primary Examiner: Schofer, Joseph L.
Assistant Examiner: Kulkosky, Peter F.
Attorney: Finnegan, Henderson, Farabow & Garrett