国家/地区 中国（9）
IPC部 C（9）
IPC大类 C02（9）
IPC小类 C02F（9） D01F（8） B01D（5）
B01J（5） D04H（3） D01D（2）
D06M（2）
IPC C02F101/20（9）
发明人
公开年 2021（7） 2022（2）
申请年 2021（4）  2020（3）  2022（2） 
专利权人

Treating sludge for adsorbing heavy metal includes performing alkaline thermal pretreatment on sludge, cooling, adding acidic solution and heavy metal adsorbent, stirring, subjecting to heavy metal adsorption treatment, adding dehydrating agent, stirring, filtering and drying.

YANG S, YANG J

Preparing amino-rich polyacrylonitrile-based nanocomposite fiber film used for removing and recycling gold, involves mixing N,N dimethylformamide dispersion of graphene oxide and the N,N-dimethylformamide solution of hyperbranched polyethyleneimine and performing amidation reaction.

ZHONG X, MENG W, YANG H, SHI X, LI X, LI T, MA Y

Electrospinning fiber membrane for enrichment and separation of heavy metal ions in wastewater, comprises polythiocarbonate-containing polymer including polythiocarbonate homopolymer and polythiocarbonate-containing copolymer.

ZHANG X, YUE X, CAO X

Preparing graphene oxide grafted polyacrylonitrile fiber heavy metal adsorption film comprises e.g. ultrasonically dispersing graphene oxide and chloropropyltriethoxysilane, performing constant temperature reaction and electrospinning.

LI Z

Bionic fiber functional material used in low concentration heavy metal ion adsorption, is rich in multiple adsorption sites, that is, N, O, and S sites that have adsorption properties for heavy metal ions and material.

HE H, WANG L, ZHU H, ZHOU H, WANG S, HO H, ZHU H X, CHOU H

Graphene composite polyacrylonitrile hollow fiber membrane comprises polyacrylonitrile powder, graphene oxide solution, modifier, pore-forming agent and solvent.

REN G, MA L, LIU S

Preparing nanocomposite fiber membrane useful for removing ionic dyes and heavy metal ions in wastewater, comprises immersing polyacrylonitrile electrospinning nanofibers and graphene oxide composite film in dopamine aqueous solution.

WANG H, NIU L, HAN D, PAN G

Modified polyacrylonitrile fiber film useful for absorbing lead ion in water, prepared by e.g. preparing mixture of polyacrylonitrile, chitosan and biochar, adding into mixture of dopamine and graphene oxide, stirring and electrospinning.

CHEN J, XU K

Preparing a composite fiber membrane used for heavy metal sewage treatment, involves adding graphene oxide to deionized water, ultrasonically dispersing uniformly to obtain graphene oxide dispersion, and adding the dopamine hydrochloride.

CHEN Q, SI W, ZENG J, BAI T