国家/地区 中国（4）
IPC部 C（4）
IPC大类 C07（4）
IPC小类 C07D（4）
IPC C07D213/61（2）
发明人 ZHANG X（4）
公开年
申请年 2022（2） 
专利权人

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

Electrochromic material useful in electrochromic device, comprises electrochromic molecules (comprising electroacid structural unit i.e. spiro(2,11-dihydropyrrolo(3,4-a)phenoxazine-3,10'-9H-anthracene)-1-one derivatives, and dye structural unit) and electrolytes.

ZHANG X, YAO Z, ZHANG Y

Preparation of 2,3-dichloropyridine by chlorination includes reacting 3-aminopyridine, hydrochloric acid and hydrogen peroxide in graphene oxide.

SONG L, ZHANG X, WANG W, ZHANG S, WANG B

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