Showing papers by "Leibniz University of Hanover published in 1975"

TL;DR: In this paper, the effect of some liquid physical properties on gas holdup was investigated in a glass column of 15·9 cm dia and 390 cm high, where the steady-state tracer injection technique and the axial-dispersed-plug-flow model were used.

TL;DR: In this article, a method was described by which phenolic acid compounds occurring in plant material can be separated on a polyamide column after suitable hydrolysis, and the mixture of phenolic acids was also separated on silica gel G thin-layer plates.