国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC
发明人 ZHANG W（2）
公开年 2022（2）
申请年 2021（2）
专利权人

Denitration system for calcining alumina, has heat insulation layer whose bottom end is connected with reflux pipe connected with one end of heat exchange cavity.

GAO K, ZHANG W, JIA Z, ZHANG Z

Preparing copper alginate hydrogel filter membrane useful in sewage treatment, comprises dissolving reinforcing agent and sodium alginate in filtered waste copper ammonia solution, defoaming, forming copper alginate hydrogel film, ionizing and rinsing with deionized water to remove excess ions.

YI X, WANG X, SUN X, TANG X, YU J, ZHANG S, ZHANG W, XU L, ZHAO K