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The quality of barium sulphate crystals obtained during continuous precipitation crystallization in the process of post quenching salts utilization

Matynia A.

Polish Journal of Chemical Technology

2002

Vol. 4, nr 4

19-25

The research results of barium ions precipitation process by means of crystalline ammonium sulphate (VI) addition are presented. The influence of feeding solution composition: barium, sodium, potassium and calcium chlorides concentration, the temperature and also the residence time on the product quality are discussed. The experiments were conducted continuously in the crystallizer with internal circulation of the suspension; the computer controlled the course of experiments. Crystal size distribution of the product was obtained by means of COULTER counter test. The possibility of the process description with the principles of MSMPR crystallizer model was analyzed. The research results may be utilized in the technology of post quenching salts processing.