The extractant Cyanex 272 (bis-2,4,4-trimethylpentyl phosphinic acid) is commercially used to selectively separate cobalt and nickel from sulfate leaching liquors. The removal of calcium, however, ...

Most organic drugs contain one acid group, usually a carboxylic acid, -COOH, or one basic primary, secondary, or tertiary amino group, NC 1-3, [3,22,27,28,29] that determines the acid-base ...

TKK Helsinki University of Technology, Department of Biotechnology and Chemical Technology and Department of Forest Products Technology, P.O. Box 6100, FI-02015 TKK, Finland * To whom correspondence ...

Institute of Organic Chemistry, Justus Liebig University Giessen, 35392 Giessen, Germany Center for Materials Research (LaMa), Justus Liebig University Giessen, 35392 Giessen, Germany Institute of ...