国家/地区 印度（2）
IPC部 B（4） C（3）
IPC大类 B01（4） C02（2）
IPC小类 B01D（4）
IPC B01D061/14（4）
发明人
公开年 2023（4）
申请年 2021（4）
专利权人

Process for 5-hydroxymethyl ether formation involves using ionic liquid catalyst of fructose in corresponding alcohol and adding to N,N-dimethylacetamide methanesulfonate, refluxing reaction mixture, cooling and isolating desired ether product under reduced pressure and reusing recovered alcohol.

DUTTA S

Lead ion selective adsorption polyacrylonitrile ultrafiltration membrane useful in field of lead ion wastewater treatment, comprises support layer and polyacrylonitrile separation layer (including nanoparticles surface-modified by phosphoramidate compound).

YU H, ZHANG Y, PAN G, LIU Y, ZHAO M

Non-powered passive drinking water purifying device supplying safe water to small communities comprises storage tank in which water to be purified is stored, and manual actuator for pumping water contained in storage tank using hand or foot.

KIM E W, KIM M K

Hollow fiber ultrafiltration membrane for removal of heavy metals including arsenic, comprises polyphenylsulfone as base polymer, polyvinylpyrrolidone as pore-forming agent, and polyvinylpyrrolidone as hydrophilic polymer.

TODETI S R, NAYAK C M, KUMAR M, ISLOOR A M