• 专利标题:   Preparing vinyl chloride synthesis catalyst with ruthenium-containing electroplating waste liquid, comprises e.g. adding guanidine hydrochloride to ruthenium-containing adjustment solution, mixing evenly to obtain mixed solution, and adding carrier into mixed solution for immersion.
  • 专利号:   CN115920967-A
  • 发明人:   XIAO R, FENG X, ZHENG K, LI J, LUO D, CAO Y, SHU C, BIAN P, PEI F, CHEN X
  • 专利权人:   GUIZHOU TECHNOLOGY INST, HUBEI YIHUA CHEM TECHNOLOGY RES DEV CO, UNIV GUIZHOU
  • 国际专利分类:   B01J031/22, C07C017/08, C07C021/06
  • 专利详细信息:   CN115920967-A 07 Apr 2023 B01J-031/22 202342 Chinese
  • 申请详细信息:   CN115920967-A CN11485095 24 Nov 2022
  • 优先权号:   CN11485095

▎ 摘  要

NOVELTY - Preparing vinyl chloride synthesis catalyst with ruthenium-containing electroplating waste liquid, comprises (1) taking the ruthenium-containing electroplating waste solution, and adjusting its pH=7 to obtain the ruthenium-containing adjustment solution; (2) according to the mass ratio of ruthenium and guanidine hydrochloride is 0.1-0.5:8-20, adding guanidine hydrochloride to ruthenium-containing adjustment solution, and mixing evenly to obtain a mixed solution; and (3) adding the carrier into mixed solution for immersion, taking out the carrier and drying it to obtain a vinyl chloride synthesis catalyst. USE - The method is useful for preparing vinyl chloride synthesis catalyst with ruthenium-containing electroplating waste liquid. ADVANTAGE - The method: can realizes the reuse of waste ruthenium salt and the mercury-free operation of calcium carbide polyvinyl chloride.