国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01J（4）
IPC
发明人 ZHANG X（4）
公开年 2023（4）
申请年 2022（3） 
专利权人

Synthesizing diethyl oxalate comprises e.g. placing oxalic acid, ethanol, toluene and catalytic adsorption solid material into the reactor and mixing, gradually heating the reactor from room temperature, and heating the esterification mixture.

ZHANG X

Catalyst for directionally synthesizing alkyl carbonate from alkyl oxalate, comprises calcium-magnesium-aluminum hydrotalcite modified by modifier.

LI Z, ZHANG X, YUAN X, WANG X, CHEN W, LI J, WAN Z, WANG W, YU G, XIA R, PANG X, LI G, XIONG X, SONG X, SHI L, SUN Y, ZHOU J, ZHENG W

Preparing catalyst useful for synthesizing caprolactam, comprises stirring and mixing raw materials including graphene oxide, phosphorus source and solvent, and subjecting mixture to solid-liquid separation, washing, drying, and roasting in nitrogen or inert gas atmosphere.

KONG M, HAN M, ZHANG X, DAI Y, XU L, DING K, GUO H, WANG G

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