国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B01（2）
IPC小类 B01J（2）
IPC
发明人 ZHANG Q（2）
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparation of 4,4'-diaminodiphenylmethane involves adding formaldehyde or paraformaldehyde into aniline solution, and adding water and graphene catalyst for catalysis.

FENG J, ZHANG Q, DAI Y, CHEN D, MA C, WU M

Preparing catalyst used for preparing vanillic aldehyde and 4-methyl guaiacol, involves mixing metal nickel salt, cobalt salt, carbon source, and amine source in solvent in certain proportion, heating, stirring to form uniform jelly, and drying jelly to obtain the catalyst precursor.

CHEN L, ZHANG Q, ZHANG X, MA L, LIU J