A chemist is setting up an hot chlorination experiment
Experimental set-up for hot chlorination experiments
further information, ANZAPLAN Services

Hot Chlorination

Hot chlorination is a highly advanced technique for achieving exceptional high purity. During the chlorination process high purity quartz is heated to temperatures up to 1,200°C in a chlorine or hydrogen chloride gas atmosphere. Chlorination causes structural impurities to be forced from the crystal lattice into the gas phase. Chlorination is particularly efficient for the reduction of alkali, alkali earth, and transition metals.

ANZAPLAN has a hot chlorination test facility - a highly valuable tool to validate and optimize the chlorination process specific to the mineralogical, physical and chemical properties of the raw material. Variations in gas composition, reaction temperature and duration determine optimum parameters for the material undergoing hot chlorination. Thus a maximum purity of the quartz is achieved in order to fulfill the stringent requirements of the semiconductor industry.