国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3） B01（2） C07（2）
IPC小类 C01B（3）
IPC C01B032/198（3）
发明人 GUO H（3）
公开年 2023（2）
申请年 2022（3）
专利权人

Synthesizing caprolactam comprises using catalyst to catalyze reaction raw material comprising cyclohexanone oxime to carry out Beckmann gas-phase rearrangement reaction to obtain caprolactam.

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

Preparing graphene oxide/chitosan/polyvinyl alcohol composite microsphere immobilized copper catalyst comprises e.g. adding graphene oxide into chitosan solution, ultra-sonicating, adding polyvinyl alcohol and glutaraldehyde, sonicating, adding copper(II) sulfate aqueous solution and reaction.

LI W, LI B, FU C, ZHU L, HU X, GUO H, ZHANG Y

Method for preparing graphene oxide by water bath, involves cooling deionized water at room temperature, and stirring deionized water uniformly to obtain brown dispersion, where hydrogen peroxide solution is added.

ZHENG Q, SHEN J, PANG Q, YAO H, GUO H, LIU W, CHENG C, LIU Y, WANG T