国家/地区 中国（3）
IPC部 B（3） C（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC C08K003/04（2）
发明人
公开年 2023（3）
申请年 2022（3）
专利权人

Preparing amino and pyrenyl group-modified alginic acid derivative useful in e.g. formaldehyde absorption, comprises e.g. acidifying sodium alginate, adding N,N'-dicyclohexylcarbodiimide, 4-dimethylaminopyridine, deionized water and ethylenediamine, freeze-drying, and adding 1-pyrenebutyric acid.

XIA Y, WANG X, LIU H, GONG X, LIU J

Polypropylene tail gas absorption tower comprises an absorbing tower main body provided with air inlet, absorption tower main body provided with demisting layer, filling layer provided with filling frame, and air inlet, air outlet, filler loading and unloading port provided with connecting flange.

WANG G

Preparing ion exchange membrane, involves preparing two main bodies carrying particles with opposite charge, cleaning and drying surface of substrate having enhanced permeability, and soaking in dispersion liquid, forming thin film on substrate surface, drying, dissolving substrate in polar solvent.

LIANG Z, FANG Y, LIU S, ZHANG D, CHEN X