▎ 摘　　要

NOVELTY - Trivalent chromium complex tanning agent comprises 50-60 pts. wt. graphene oxide dispersion liquid, 6-8 pts. wt. potassium dichromate, 1-15 pts. wt. sodium carbonate, and 0.5-1 pts. wt. dispersing agent. USE - Trivalent chromium complex tanning agent. ADVANTAGE - The trivalent chromium complex tanning agent can be easily prepared with high absorption rate and reduced chromium compound residues. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the trivalent chromium complex tanning agent comprising adding graphene oxide dispersion liquid into a reactor, heating at 50-60 degrees C, adding potassium dichromate to the reactor, uniformly mixing, performing heat preservation reaction for 30-50 minutes, reducing the temperature to room temperature, stirring the heated mixture, slowly adding sodium carbonate to the stirred mixture, adjusting pH value to 1.5-2, adding dispersing agent to the mixture, and ultrasonically dispersing the mixture for 1-1.5 hours.