Process for preparing chrome tanning agent from organic waste containing cellulose


Application Number  00129406 Application Date  2000.12.15
Publication Number  1298955 Publication Date  2001.06.13
Priority Information    
International
Classification
 C14C3/06  
Applicant(s) Name  Shandong Light Industry College  
Address    
Inventor(s) Name  Fu lihong;Qi Yongqin;Zhang Mingrang  
Patent Agency Code  37200 Patent Agent  sun jun
AbstractThe present invention relates to a preparation method of chrome-contained tanning agent which contains sexavalence chromium compound as oxidizing agent source, organic waste containing plant fiber as reducing agent source, the oxidizing agent and reducing agent are added into a reactor, sulfuric acid or hydrochloric acid is added at a temperature not higher than 65 deg.C, they are stirred and reacted at 85-100 deg.C to obtain green coloured chrome tanning agent containing trivalence chromium. Advantages: simple method, readuced cost, reduced environmental pollution, good permeability of the chrome tanning agent, strong selective filling property and obvious thickening rate.