• 专利标题:   Preparing graphene structure biological carbon for strengthening anaerobic digestion, involves preparing precursor after grinding, straw with water and put into high-pressure reaction kettle to preserve heat, then putting into concentrated hydrochloric acid solution for soaking, cleaning, and drying.
  • 专利号:   CN114988396-A
  • 发明人:   WANG T, HU K, GU X, TANG Y, WU J, ZHAO Y, LI X, GAO Q, ZHANG J, YUAN Y
  • 专利权人:   HUAIYIN TECHNOLOGY INST
  • 国际专利分类:   C01B032/184
  • 专利详细信息:   CN114988396-A 02 Sep 2022 C01B-032/184 202296 Chinese
  • 申请详细信息:   CN114988396-A CN10508253 11 May 2022
  • 优先权号:   CN10508253

▎ 摘  要

NOVELTY - Preparing graphene structure biological carbon involves preparing precursor after grinding, straw with water and put into a high-pressure reaction kettle to preserve heat, then putting into a concentrated hydrochloric acid solution for soaking, cleaning, and drying to obtain the precursor removing impurities, ion exchange, soaking the precursor in a strong alkali solution, heating and stirring to dry, finishing ion exchange, preparing the graphene-like structure of biological carbon, using inert gas as atmosphere, and heating the biomass of the ion exchange to 500-1200 ℃ to obtain the graphene-like bio-char structure. USE - Method for preparing graphene structure biological carbon for strengthening anaerobic digestion, used in heavy metal ion adsorption. ADVANTAGE - The method has simple, it can prepare in a conventional laboratory, and has a low raw material cost. It has high preparation efficiency. It has environment-friendly. It has wide application prospects in the adsorption material preparation field.