METHOD FOR REGENERATION OF SULFOCATIONITE Russian patent published in 1995 - IPC

FIELD: ion-exchange technology. SUBSTANCE: sulfocationite of Ca or of mixed Ca-Mg-Na form is regenerated into hydrogen form. The process is carried out in reflux ion-exchange column with the help of 4-6 M HCl solution. Hydrochloric acid being used as regenerant is constantly fed from top of the column to its bottom, and ionite is fed from bottom to top, ratio of their streams being 1:(1.1-1.05). Sulfocationite regenerated to 93 ± 24 % is withdrawn from the top of the column. Said sulfocationite has degree of regeneration 90-93 %, thus prepared concentrated solution CaCl₂,MgCl₂,NaCl has no impurities of HCl. EFFECT: increases degree of regeneration, provides complete utilization of regenerant. 1 dwg