国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2） C07（2）
IPC小类 B01D（2）
IPC B01D053/94（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Producing urea for vehicles involves passing ammonia and carbon dioxide into synthesis tower, adding graphene-supported nitrogen atom catalyst, controlling temperature and pressure, reacting, depressurizing, cooling, separating gas and liquid, concentrating liquid, spray drying and granulating.

DU F, WANG Q, MO Z, WANG D, LUO X, FU L

Preparing perylene metal compound useful for preparing composite material used as photocatalyst for photocatalytic oxidation reaction of nitric oxide, comprises reacting perylene-3,4,9,10-tetracarboxylic dianhydride with metal organic compound including titanium, zirconium, cobalt, and cerium.

WEI Q, WANG Y, HUO M, XIAO S