Method and equipment for treating black liquor into boil solution


Application Number  00129510 Application Date  2000.09.29
Publication Number  1285436 Publication Date  2001.02.28
Priority Information    
International
Classification
 D21C11/04  
Applicant(s) Name  Luo Yingming  
Address    
Inventor(s) Name  Liang Zhilin;Luo Jinyu  
Patent Agency Code  00000 Patent Agent  
AbstractThe method for treating pulping black liquor and making one into cooking liquor to prevent black liquor pollution includes the following steps: 1. making solid-state substance in black liquor react with calcium ions being in lime, gypsum or calcium chloride to produce solid precipitate which is insoluble in water; 2. solid-liquid separation; 3. drying the above-mentioned solid precipitate and incinerating; and 4. supplementing alkali quantity in separated clear liquor, and making it into cooking liquor for reuse. Said invented method is simple in equipment, reliable, and easy to operate, etc.