▎ 摘　　要

NOVELTY - Preparation of lactic acid by low-temperature catalytic conversion of high-activity graphene loaded nickel catalyst and glycerol comprises taking biomass glycerol as raw material, preparing glycerol aqueous solution, adding to high-pressure reaction kettle, adding graphene loaded nickel catalyst and sodium hydroxide solid, purging with high-purity nitrogen gas, closing reaction kettle, stirring, heating and reacting. USE - Method for preparing lactic acid by low-temperature catalytic conversion of high-activity graphene loaded nickel catalyst and glycerol (claimed). ADVANTAGE - The method has lactic acid selectivity of 98% and glycerol conversion rate of 100%, low cost and safe environmental protection.