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    
Applicant(s) Name  Luo Yingming  
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.