Method of separating at least one metal present in a solution by

Details Method of separating at least one metal present in a solution by Method of separating at least one metal present in a solution by

1997-02-18

1999-08-03

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210687, 210688, 210912, 210914, B01D 1500

Patent

active

059321075

ABSTRACT:
The invention relates to a method for separating metals present in a solution using chitosane. According to the present invention, chitosane in modified physical form is used which allows faster, more extensive fixation of the metals present in a solution. This purpose is achieved using a method in which the chitosane used is a lyophilizate of chitosane, in particular a lyophilizate of chitosane salt. ##STR1##

REFERENCES:
patent: 4031025 (1977-06-01), Vanlerberghe et al.
patent: 4125708 (1978-11-01), Masri et al.
patent: 4929722 (1990-05-01), Partain et al.
patent: 4992180 (1991-02-01), Onodera et al.
patent: 5010181 (1991-04-01), Coughlin
Article: Hsien, et al., "Effects of Acylation and Crosslinking on the Material Properties and Cadmium Ion Adsorption Capacity of Porous Chitosan Beads," Chemical Abstracts--vol. 123, p. 610 (1995).
"Questel Plus" Search.
Article "Elimination des Metaux Lourds par Adsorption sur Materiaux d'Origine Biologique", Charrier et al., TSM No. 6, Jun. 1994.

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