国家/地区 中国（2）
IPC部 B（2） C（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC
发明人 ZHAO Z（2）
公开年 2021（2）
申请年 2020（2）
专利权人

Preparing selective catalytic reduction denitration catalyst comprises e.g. dissolving neutralized slag by rare earth oxalic acid wastewater by sulfuric acid, depositing, converting, and adding concentrated sulfuric acid.

TONG Z, WANG F, ZHAO Z, WANG W, WANG Y, WANG S

Graphene oxide purifying device comprises a mixing tank and a purifying tank, where the mixing tank is placed on an ultrasonic oscillator, the top end of the mixing tank is provided with a material feeding port.

XIANG Q, ZHOU T, SHENG L, LIU X, QIN Y, ZHAO Z, SONG H