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公开(公告)号:US11939221B2
公开(公告)日:2024-03-26
申请号:US17055780
申请日:2019-04-10
申请人: ArcelorMittal
IPC分类号: C01B32/198
CPC分类号: C01B32/198
摘要: A method for the manufacture of reduced graphene oxide from electrode graphite scrap including the provision of the graphite electrode scrap, the grinding of electrode graphite scrap to obtain ground graphite electrode, an oxidation step of the ground graphite electrode to obtain graphene oxide and the reduction into reduced graphene oxide.
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公开(公告)号:US12103852B2
公开(公告)日:2024-10-01
申请号:US17051615
申请日:2019-04-05
申请人: ArcelorMittal
发明人: Thi Tan Vu
IPC分类号: C01B32/198 , B01D21/26 , C01B32/19 , C01B32/23
CPC分类号: C01B32/198 , B01D21/262 , C01B32/19 , C01B32/23 , C01B2204/04 , C01B2204/30 , C01B2204/32
摘要: A method for the manufacture of graphene oxide from Kish graphite including the pretreatment of kish graphite and the oxidation of pre-treated kish graphite into graphene oxide, the graphene oxide obtained with at least 45% by weight of oxygen functional groups and the use of the graphene oxide.
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公开(公告)号:US12049402B2
公开(公告)日:2024-07-30
申请号:US17055744
申请日:2019-04-10
申请人: ArcelorMittal
IPC分类号: C01B32/198 , C01B32/192 , C01B32/23
CPC分类号: C01B32/198 , C01B32/192 , C01B32/23 , C01P2004/61 , C01P2006/40
摘要: A method for the manufacture of graphene oxide from electrode graphite scrap including the provision of electrode graphite scrap, the grinding of electrode graphite scrap to obtain ground graphite electrode and an oxidation step of the ground graphite electrode to obtain graphene oxide.
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公开(公告)号:US12006222B2
公开(公告)日:2024-06-11
申请号:US17272779
申请日:2019-07-09
申请人: ArcelorMittal
发明人: Thi Tan Vu , Oscar Perez Vidal , Juan Jose Arribas , David Noriega Perez , Roberto Suarez Sanchez
IPC分类号: C01B32/198 , B01J21/18
CPC分类号: C01B32/198 , B01J21/18
摘要: A method for the manufacture of microwave-reduced graphene oxide (MW-rGO) including: the provision of graphene oxide (GO), the reduction of GO into reduced graphene oxide (rGO) using a reducing agent and the reduction of rGO into MW-rGO by microwaving under air atmosphere in presence of a catalyst.
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公开(公告)号:US11702341B2
公开(公告)日:2023-07-18
申请号:US16499431
申请日:2018-03-26
申请人: ArcelorMittal
IPC分类号: C01B32/198 , C01B32/23
CPC分类号: C01B32/198 , C01B32/23 , C01B2204/04 , C01P2004/20
摘要: The present invention provides a method for the manufacture of graphene oxide from Kish graphite.
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公开(公告)号:US11535519B2
公开(公告)日:2022-12-27
申请号:US17051162
申请日:2019-04-05
申请人: ArcelorMittal
IPC分类号: C01B32/196 , C01B32/19 , C01B32/182
摘要: A method for the manufacture of pristine graphite from Kish graphite including three different steps A, B and C; the pristine obtained with among others a high amount of carbon atoms, i.e. a pristine graphene having a high purity; and the use of this pristine graphene.
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