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    
Applicant(s) Name  Shandong Light Industry College  
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.