国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01D053/02（2） B01J020/30（2）
发明人
公开年 2021（2）
申请年 2020（2）
专利权人

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

Prefabricated bricks with the function of adsorbing formaldehyde and continuously releasing negative ions comprises coarse corundum, fine corundum, alumina fine powder, alumina powder, cattail fiber, dextrin, anion powder.

LONG R