国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01J020/22（3）
发明人 WANG J（2）
公开年 2022（3）
申请年 2021（2） 
专利权人

Preparing fine-grained high-purity oxygen-free copper plate comprises e.g. cleaning hearth of electron beam cooling bed smelting furnace, heating hot-pressed slab, milling milled hot-rolled billet up and down, annealing semi-finished sheet material, and cutting according to product shape.

WANG W, WANG C, LIU X, LIU Q, ZHOU B, WANG J, SUN J, LIANG X, WANG Q

Preparing nanomaterials for sewage treatment comprises dispersing modified attapulgite into water, dispersing graphene oxide in water, introducing modified attapulgite solution and modified activated carbon solution, washing, nanomaterials for sewage treatment.

JIANG C, LI Z, QI X, CAO W, QL X

Preparation of modified graphene film used in system for capturing carbon dioxide in air, involves reducing graphene oxide sheets to obtain graphene sheets, using quaternary amine compounds to modify graphene sheet and preparing porous modified graphene membrane.

ZHANG Y, WANG J, XU S, BAI H