国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01J（2）
IPC C01B032/324（2）
发明人
公开年 2021（2）
申请年 2020（2） 
专利权人

Activated carbon for 2-cyanopyridine chlorination involves dehulling dried rice, barley, wheat or oats, freeze-drying, heating, carbonizing, soaking in hydrochloric acid solution, and immersing in activator containing sodium hydroxide.

LIU B, YANG J, PEI L

Processing phenol-based rectifying kettle residue comprises e.g. subjecting phenol-based rectifying kettle residue by vacuum extracting deep drawing to obtain decompressed and drawing out and vacuum extracting deep drawing kettle.

HE L, LI X, WANG C, DU J, ZHOU J, CAI S, MA Y