国家/地区 印度（5）
IPC部 B（5）
IPC大类 B01（5） C01（2） C02（2）
IPC小类 B01D（5）
IPC B01D061/14（5）
发明人
公开年 2023（2）
申请年 2021（3） 
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

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

Portable drinking water container with water filtration system comprises screw cap of container at top with removable water filter fitting to as cartridge and squeezable cylindrical water storage unit of suitable material.

MANDAL A, GHOSH S, GUPTA A

Making ultrafiltration membrane used to separate heavy metals, comprises e.g. making dope solution by dissolution of dry polymer having solvent, polymeric additive and nanoparticle with/without acid/base treatment and stirring the mixture.

BHALERAO A, CHENDAKE Y, CHAVAN S, DHUME S, MAHAJANTATPATE P, KHADE A

Filtering or solid-liquid separation membrane, has graphene compounds provided in matrix layer and dispersed in polymer in matrix layer, where polymer is formed by interfacial polymerization, and compounds increase rejection of matrix layer.

KRISHNA K M, BHATTACHARYYA A, DEVI R M, PHADKE M, KLISHINA K M, BATACHAYA A, DEVIE R M, PHADKE M A