• 专利标题:   Regenerating load type platinum group metal catalyst comprises e.g. drying deactivated supported platinum group metal catalyst, stirring dried catalyst and soaking with regeneration reagent, filtering, vacuum drying filtered catalyst, rotary-evaporating filtrate, and heating.
  • 专利号:   CN113769792-A
  • 发明人:   YUE Y, JIN C, FANG X, ZHAO J
  • 专利权人:   UNIV ZHEJIANG TECHNOLOGY
  • 国际专利分类:   B01J038/00, B01J038/50
  • 专利详细信息:   CN113769792-A 10 Dec 2021 B01J-038/00 202258 Chinese
  • 申请详细信息:   CN113769792-A CN10979330 25 Aug 2021
  • 优先权号:   CN10979330

▎ 摘  要

NOVELTY - Regenerating load type platinum group metal catalyst comprises e.g. (a) drying the deactivated supported platinum group metal catalyst under an inert gas atmosphere, under the condition of X-ray irradiation, stirring the dried catalyst and soaking with a regeneration reagent, and filtering, washing with a solvent until the washing liquid is neutral, recovering the washing filtrate, and vacuum drying the filtered catalyst to obtain regenerated supported platinum group metal catalyst, and (b) rotary-evaporating the filtrate recovered in step (a) with a rotary evaporator until the quality of the liquid no longer changes, and heating the rotary-evaporated liquid at 150-200degrees Celsius for 2-8 hours to complete the recovery of the regeneration reagent. USE - The method is useful for regenerating load type platinum group metal catalyst. ADVANTAGE - The catalyst obtained by the regeneration can be restored to the original catalytic activity and selectivity, and the recovered regeneration reagent can be recycled. DETAILED DESCRIPTION - Regenerating load type platinum group metal catalyst comprises (a) drying the deactivated supported platinum group metal catalyst under an inert gas atmosphere, under the condition of X-ray irradiation, stirring the dried catalyst and soaking with a regeneration reagent for 1-3 hours, and filtering, washing with a solvent until the washing liquid is neutral, recovering the washing filtrate, and vacuum drying the filtered catalyst at 40-110degrees Celsius for 8-24 hours to obtain regenerated supported platinum group metal catalyst, where the regeneration reagent is imidazole ionic liquids, quaternary phosphonium ionic liquids, quaternary ammonium ionic liquids, pyrrolidine ionic liquids, pyrrolidone ionic liquids, piperidine ionic liquids, and pyridine ionic liquids, and (b) rotary-evaporating the filtrate recovered in step (a) with a rotary evaporator until the quality of the liquid no longer changes, and heating the rotary-evaporated liquid at 150-200degrees Celsius for 2-8 hours to complete the recovery of the regeneration reagent.