Authors:T. Fukuyama, Md. T. Rahman, N. Kamata, M. Tokizane, Y. Fukuda and I. Ryu
Fluorous multi-phase bromination reaction of alkenes could be successfully transformed to a continuous microflow system in which a fluorous polyether, Galden® HT135, is employed as a recyclable molecular bromine support. This microflow bromination of alkenes could be carried out without any temperature control or an inert gas atmosphere. The circulatory continuous microflow reaction system for bromination of cyclohexene was created which gave 8.3 g (85%) of dibromocyclohexane after continuous operation for 6 h.
Authors:S. Chae, Y. Jang, I. Bae, K. Ryu, T. Yudintseva and S. Yudintsev
This study was aimed at the synthesis, study of phase relations and characterization of the garnet ([Ca1.5GdCe0.5]VIII[ZrFe]VI[FexAl3−x]IVO12, x = 0−2) intended as promising matrix for actinides (Pu) immobilization. The optimum temperatures of the fabrication of the
garnets ceramics are 1400 °C at x = 2 and 1500 °C at x = 0−1. The garnets lattice parameters and the content of Ce, as an imitator of Pu, increased with the content of iron. It
was suggested that the ability of the garnet for incorporation of Pu was closely related to the ionic radii of the elements
occupied the four-and six-coordinated sites of the structure.