Experiments in connection with control of boron acid concentration by ion exchange in Hungary

The results obtained with an experimental nuclear power plant output control with boron acid ion exchange technology are presented. The dependence of the ability of the ion exchanger to bind boron acid on the concentration of the boron acid solution, the temperature and the degree of the alkalinity of the resin has been studied. The results obtained for Hungarian resins are compared with those for some Duolite-type ones. Some results for a control system realized in big laboratory size are outlined. (K.A.)