• 专利标题:   Production system of graphene oxide, has reactor whose wall is provided with interlayer, chiller connected to first water inlet of interlayer, hot water unit connected to second water inlet of interlayer, and ceramic membrane filtering device connected with discharge port of reactor.
  • 专利号:   CN116040620-A
  • 发明人:   WANG W, ZHANG S, WU K
  • 专利权人:   SHANDONG HAIKE INNOVATION RES INST CO
  • 国际专利分类:   C01B032/198
  • 专利详细信息:   CN116040620-A 02 May 2023 C01B-032/198 202344 Chinese
  • 申请详细信息:   CN116040620-A CN10240326 09 Mar 2023
  • 优先权号:   CN10240326

▎ 摘  要

NOVELTY - A production system of graphene oxide, has a reactor whose wall is provided with an interlayer; a chiller connected to the first water inlet of the interlayer; a hot water unit connected to the second water inlet of the interlayer; and a ceramic membrane filtering device connected with the discharge port of the reactor. USE - Production system of graphene oxide. ADVANTAGE - The method uses fuming nitric acid as an intercalation agent, so that the obtained graphene oxide monolayer rate is higher, and at the same time, the reaction temperature is controlled by passing cold and hot water into the interlayer of the reactor wall, and the degree of automation is improved. Finally, the reaction solution is filtered and cleaned through ceramic membrane filtration device, which solves the problem of difficult follow-up processing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for producing graphene oxide using the production system, which involves: (a) mixing concentrated sulfuric acid, graphite and fuming nitric acid in the reactor, cooling down by passing cold water into the wall interlayer of the reactor, then adding potassium permanganate, adding water to quench the reaction after the mixed reaction, and then passing hot water into the wall interlayer of the reactor to increase the temperature, adding hydrogen peroxide, and finally filtering and cleaning the reaction solution through a ceramic membrane filtration device to obtain graphene oxide.