国家/地区 中国（8）
IPC部 B（8）
IPC大类 B01（8） C07（8）
IPC小类 B01J（8）
IPC C07D233/88（4） B01J027/138（3） B01J027/24（2）
B01J037/02（2） B01J037/08（2）
发明人 MAO Z（4）
公开年 2018（8）
申请年 2018（8）
专利权人 MAO Z（4）

Preparation of allantoin by titanium dioxide-based composite solid catalyst by mixing raw materials including tetrabutyl titanate, graphene and copper salt, heating, drying, grinding, calcining, soaking, and performing condensation reaction.

MAO Z

Preparation of cyclic carbonate by adding autoclave with, e.g. epoxy compound and lanthanum-modified graphene catalyst, stirring, dispersing, sealing, vacuumizing, replacing air with carbon dioxide, heating and dissolving in organic solvent.

WANG Q, ZHANG Y

Preparation of allantoin using titanium dioxide-based composite solid catalyst by mixing tetrabutyl titanate, graphene and dimethylformamide, mixing copper salt, zinc salt and silver salt, heating, and performing condensation reaction.

MAO Z

Preparing titanium dioxide-based composite solid catalyst useful for preparing allantoin comprises e.g. mixing tetrabutyl titanate, graphene, dimethylformamide and ethanol to form solution A and mixing water, ethanol and acetic acid.

MAO Z

Preparation of titanium dioxide-based composite/Lewis acid composition for preparing allantoin, involves mixing tetrabutyl titanate, graphene, dimethylformamide, and ethanol to form solution, and mixing water, ethanol and acetic acid.

MAO Z

Preparation of 2,3-dichloropyridine involves obtaining graphene-copper oxide composite catalyst, adding 2-chloro-3-aminopyridine and concentrated hydrochloric acid, cooling, adding solution of sodium nitrite, and further processing.

ZHANG L, SI N, ZHANG X, ZHOU Y, SHI L, ZHANG J

Preparation of solid catalyst for synthesizing ethylene carbonate, involves mixing graphene oxide and dicyandiamide, and forming carbon nitride/graphene oxide composite by dipping, drying and baking.

LIU N, WANG J, YANG S, WU J, LI S, XUE B, LI Y

Preparation of catalyst used in catalytic hydrogenation of nitro aromatic compound e.g. nitrobenzene for preparing arylamine compound, involves mixing prepared nitrogen-doped graphene in divalent iron solution, drying and pyrolyzing.

WEI Z, HOU Y, XU Z