PREPARATION OF AMIDOXINE GROUP-CONTAINING CHELATING FIBERS AND THEIR GOLD ABSORPTION PROPERTIES .2. A PRELIMINARY INVESTIGATION OF THE ABSORPTION BEHAVIOR OF AU(3+) ONTO CHELATING FIBERS CONTAINING AMIDOXIME GROUPS

LIN WP; FU RW; LU Y; ZENG HM

Reactive Polymers, Vol.22, No.1, 1-8, 1994

DOI10.1016/0923-1137(94)90091-4 Export Citation

PREPARATION OF AMIDOXINE GROUP-CONTAINING CHELATING FIBERS AND THEIR GOLD ABSORPTION PROPERTIES .2. A PRELIMINARY INVESTIGATION OF THE ABSORPTION BEHAVIOR OF AU(3+) ONTO CHELATING FIBERS CONTAINING AMIDOXIME GROUPS

LIN WP, FU RW, LU Y, ZENG HM

The absorption behavior of ionic gold onto chelating fibers containing amidoxime groups has been investigated. Chelating fibers not only present high absorption capacity, high absorption velocity and high selectivity to Au3+ ion, but also are able to reduce the absorbed Au3+ to metallic gold. When the fiber containing gold is burnt, spongy metallic gold is obtained. In the absorption process, the amidoxime group in the chelating fiber is gradually destroyed and a carboxyl group is formed.