High-purity ammonium chloride prodn. - from gaseous hydrogen chloride and ammonia in vertical reactor

摘要

HCl is introduced into the reactor above NH3 whereby a quiet mixing zone is created and the removal of the reaction heat by heat exchange is facilitated. NH3 can be introduced in a slight molar excess (=5 mole %). HCl formed by chlorination of organic substances can be used. High-purity (99%), pulverulent NH4Cl is obtd.