国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01J（3）
IPC B01J027/198（3）
发明人 AN X（3）
公开年 2021（2）
申请年 2019（2） 
专利权人 CHINA PETROL.（3） SINOPEC BEIJ.（2）

Catalyst for producing pyromellitic dianhydride from durene comprises carrier and active component loaded on carrier, where active component contains vanadium oxide, optionally phosphorus compounds, cesium compounds, auxiliary agent, heat conducting material and titanium dioxide.

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

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