Sodium oxide and/or aluminium oxide determn - in aluminate lyes and slurries
Номер патента: FR2173431A5
Опубликовано: 05-10-1973
Автор(ы):
Принадлежит: Magyar Tudomanyos Akademia
Опубликовано: 05-10-1973
Автор(ы):
Принадлежит: Magyar Tudomanyos Akademia
Реферат: Automatic and continuous determn. of free Na2O and/or Al2O3 concn. in alumina factories is improved by measuring the free Na2O concn. (1-50 g/l) in a capacity cell, and Al2O3 concn. (in the free Na2O concn. range of 60-300 g/l) by measuring high-frequency conductivity, also in a capacity cell. The measurements are very rapid and precise. Capacity measurements cover the effect of the presence of a solid phase. The dependence on temp. is small.
Reference electrode for galvanic cells with solid electrolytes made by applying a metal oxide and/or double oxide in liquid hydrosol or organosol form to the electrolyte to form a solid film
Номер патента: DE19841707A1. Автор: Fritz Aldinger,Stephanie Gollhofer,Helfried Naefe. Владелец: Max Planck Gesellschaft zur Foerderung der Wissenschaften eV. Дата публикации: 2000-03-16.