国家/地区
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01J（2）
IPC B01J031/26（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Preparation of 2,4'-difluorobenzophenone involves adding fluorobenzene and catalyst, heating, dripping o-fluorobenzoyl chloride, heat-preserving, placing in kettle filled with water, leaving still for layering, and distilling oil layer.

CAO F, YI G, LI X

Composite ion exchange membrane used in e.g. electrochemical apparatus, comprises porous layer comprising binder comprising polymer, layer comprising nanosheets, which is coupled to porous layer, and layer comprising polymeric ion exchange membrane, which is coupled to layer comprising nanosheets.

LI L, ZENG S, LIU C, JUNG H Y