| 摘要 |
NOVEL ION EXCHANGE RESINS This invention provides a new ion exchange resin which is characterized by having carbodithioate functionality (i.e. CS2, where represents the resin bead). The present ion exchange resin may be prepared from a suitable non-functionalized resin bead by subjecting it to bromination, lithiation and treatment with carbon disulfide. The carbodithioate functionalized resin of this invention is surprisingly effective for the removal of Group VIII precious metals (e.g. rhodium) from chemical process streams. |
