国家/地区 中国（5）
IPC部 C（5）
IPC大类 C07（5）
IPC小类 C07C（5） B01D（2） B01J（2）
IPC B01D067/00（2） B01J027/138（2） B01J037/34（2）
C07C045/26（2） C07C047/06（2）
发明人 WANG T（5）
公开年 2021（4）
申请年 2021（5）
专利权人 JIANGSU JULA.（2） UNIV ZHEJIAN.（2）

New Janus-type nano graphene oxide for viscosity reducing agent used in oil field applications, has one side with dimensional sheet structure, grafted with hydrophobic alkylamine, and other side grafted with hydrophobic aromatic amine, where nano graphene oxide has specific water contact angle.

BI W, WANG Y, LIU Y, GUAN X, MA H, FAN L, XU Y, XU M, WANG T, ZHANG L

Preparing 5-chloro-4-acetamido-2-methoxy methyl benzoate involves adding N,N-dimethylformamide, methyl 4-acetamido-2-methoxybenzoate, and N-chlorosuccinimide into reaction kettle to obtain reaction solution, and keeping it in ice-water bath.

WANG J, WANG T

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

Preparation of tin-based catalyst used for hydration reaction of acetylene to generate acetaldehyde by dissolving tin-containing precursor and base metal additive in solvent, stirring, dropping on porous solid carrier, soaking, and drying.

ZHAO J, YUE Y, PANG X, WANG B, ZHU W, WANG S, FENG T, WANG T, ZHAO D

Preparing copper-based catalyst comprises dissolving copper-containing precursor and base metal auxiliary agent in solvent, stirring, dropping mixed solution to porous solid carrier, soaking and drying.

ZHAO J, PANG X, ZHU W, YUE Y, WANG S, CHEN Z, WANG T, FENG T