Premium
Removal and recovery of uranium by polyvinyl polyacrylate
Author(s) -
Nakajima Akira,
Sakaguchi Takashi
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280360607
Subject(s) - uranium , adsorption , polyvinyl alcohol , desorption , chemistry , nuclear chemistry , polymer , inorganic chemistry , materials science , organic chemistry , metallurgy
Various polymer esters were screened to determine which adsorb uranium the best. Polyvinyl polyacrylate adsorbed uranium extremely well and its behaviour was investigated in detail. Polyvinyl polyacrylate can selectively accumulate uranium from a solution containing various heavy metals. The uptake of uranium is very rapid and is markedly affected by pH, but not by the co‐existence of the carbonate ion. As it can adsorb uranium in the pH region 4 to 7, it can be used to remove and recover uranium from uranium refining waste water. It can recover uranium almost completely from solution at pH 6 and almost all uranium adsorbed is desorbed easily with 0.1 M HCl. Thus, polyvinyl polyacrylate can be used repeatedly in adsorption‐desorption process.