国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01D067/00（2）
发明人 WANG T（2）
公开年
申请年
专利权人

Preparation of ethyl benzoylacetate involves stirring carbon tetrachloride and sodium bicarbonate, adding ethyl acetoacetate and benzoyl chloride, reacting, adding sodium hydroxide, filtering with microporous membrane and distilling filtrate.

WANG J, WANG T

Preparing a gas separation film, comprises mixing graphene and N,N-dimethylformamide to obtain a mixture and then dispersing, and mixing mixture with 1,4-butanediol, 4,4-diphenylmethane diisocyanate and dibutyltin dilaurate to heat.

WU L, WANG T, ZHAO L