• 专利标题:   Nuclide plutonium removing composite adsorbent used for removing nuclide plutonium, is composed of graphene and chitosan.
  • 专利号:   CN106902756-A
  • 发明人:   LI P, WANG D, WU Z, YANG A, YANG P, ZHANG F, ZHU Y
  • 专利权人:   CHINA ACAD ENG PHYSICS MATERIAL INST
  • 国际专利分类:   B01J020/24, B01J020/30, G21F009/12
  • 专利详细信息:   CN106902756-A 30 Jun 2017 B01J-020/24 201761 Pages: 8 Chinese
  • 申请详细信息:   CN106902756-A CN10172614 22 Mar 2017
  • 优先权号:   CN10172614

▎ 摘  要

NOVELTY - A nuclide plutonium removing composite adsorbent is composed of graphene and chitosan. USE - Nuclide plutonium removing composite adsorbent used for removing nuclide plutonium (claimed). ADVANTAGE - The method achieves minimization of radioactive waste, greatly simplifies the nuclear wastewater treatment process, and reduces radioactive waste storage. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of nuclide plutonium removing composite adsorbent, which involves adding glutaraldehyde aqueous solution to chitosan solution, adding graphene oxide, stirring in a water bath at 45-55 degrees C for 85-95 minutes, adjusting the pH of reaction solution to 9-10, placing in 75-80 degrees C in the water bath to continue reaction for 50-70 minutes, washing to adjust pH to 7, and vacuum drying to obtain composite adsorbent; and (2) application method of nuclide plutonium removing composite adsorbent in removal of nuclide plutonium.