Title: Preparation method of acid soluble lignin for storage battery
Application Number: 92109037 Application Date: 1992.08.08
Publication Number: 1073951 Publication Date: 1993.07.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08H5/04,H01M4/62
Applicant(s) Name: Zhao Yutang Address: 255056
Inventor(s) Name: Wang Wenming, Zhao Yutang
Attorney & Agent:
Abstract:
     The invented acid lignin is obtained from waste hydrolyses dregs after making alcohol with wood as raw material. The process to prepare the solid product includes such technological step as hydrolytic dregs are immersed in sulfuric acid solution, filtering-out acidolytic hydrolytic cellulose, pickling several times with sulfuric acid, washing with fresh water for controlling pH value, and drying.
Time: 3