国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01D（4）
IPC B01D053/94（2）
发明人
公开年 2021（2）
申请年
专利权人

Anti-crystallization vehicle urea comprises high-purity urea, crystallization inhibitor, acetylene glycol surfactant, 2,6-di-tert-butyl-p-cresol, cold-resistant agent and high-purity water.

YE T

Air purifying device for separating materials from air flow, has collector plates arranged downstream of set of ionization needles, where device generates ionization corona discharge by positive ionization voltage led to needles.

TULKKI J, JUHANI T, SKOGSTER N, MAKKONEN P

Diesel engine catalytic particle catcher coated with cerium-zirconium-potassium complex/reduced graphene oxide nano solid solution catalyst comprises filter housing and filter element comprising substrate and catalyst.

LI Y, WU G

Graphite filter tipped cigarette comprises a filter with fibers segment and tobacco where a graphene adsorption section has wrapping paper composition and is coated with graphene, which is chemically bonded to filter fibers.

WANG G, TANG Y, ZHANG J, ZHANG A, LIU D