国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B017/90（2）
发明人
公开年
申请年 2022（2）
专利权人

Zero-discharge treatment method for full resource utilization of waste acid in graphene production by e.g. adjusting supernatant pH to neutral by adding sulfuric acid, evaporating and concentrating by mechanical vapor recompression, crystallizing to obtain potassium sulfate, recycling water.

FENG X, FENG J, XIAO L, FENG S

Preparing oxidized graphene by recycling acid involves obtaining the waste acid filtrate produced by preparing graphene oxide, then evaporating, concentrating and demineralizing waste acid filtrate to obtain recovered acid.

QU Y, TANG R, JI L, WU Y, YIN S, GUO L