国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4） C07（3）
IPC小类 B01J（3） C07D（3）
IPC C07D307/60（3） B01J027/198（2）
发明人 ZHANG D（4）
公开年 2021（4）
申请年 2019（4）
专利权人 CHINA PETROL.（3） SINOPEC BEIJ.（3）

Preparing graphene dust-removing cloth comprises e.g. preparing spinning solution, spraying to obtain modified graphene fiber intermediate layer; obtaining interlayer stock solution, and spraying to obtain intermediate interlayer.

LI X, ZHANG D, WEI Y, DAI J

Catalyst useful for preparing phthalic anhydride by naphthalene oxidation, comprises carrier, active component and heat conducting material.

AN X, LIU Y, YUAN B, SHI H, ZHANG D, ZHANG Z, FENG Y, DONG Y

Catalyst useful for preparing phthalic anhydride by oxidation of o-xylene, comprises carrier, vanadium, phosphorus and cesium compound, auxiliary agent comprising e.g. at least one of rubidium, cerium or niobium and heat-conducting material.

AN X, YUAN B, LIU Y, SHI H, ZHANG D, ZHANG Z, FENG Y, DONG Y

Catalyst useful for oxidation of benzene to maleic anhydride, comprises catalyst carrier, active component and heat-conducting material.

ZHANG D, SHI H, ZHANG Z, FENG Y, AN X, LIU Y, YUAN B