国家/地区 中国（19）
IPC部 B（21）
IPC大类 B01（21）
IPC小类 B01J（21）
IPC B01J035/10（6） C07D307/68（6） B01J021/18（4）
B01J023/44（4） B01J023/42（3） B01J023/46（3）
B01J027/24（3） B01J037/02（3） B01J037/08（3）
C07D201/04（3） C07D223/10（3） C07D307/46（3）
B01J023/52（2） B01J023/644（2） B01J027/14（2）
发明人 CHEN G（8） SUN Q（8） ZHENG L（8）
ZONG B（8） DU Z（6） DAI Y（4）
DING K（4） GUO H（4） HAN M（4）
KONG M（4） RONG J（4） WANG G（4）
XU L（4） ZHAO H（4）
公开年 2023（21）
申请年 2021（10）  2022（10） 
专利权人 CHINA PETROL.（10） RES INST PET.（8） JIANGSU YANG.（4）

Process for 5-hydroxymethyl ether formation involves using ionic liquid catalyst of fructose in corresponding alcohol and adding to N,N-dimethylacetamide methanesulfonate, refluxing reaction mixture, cooling and isolating desired ether product under reduced pressure and reusing recovered alcohol.

DUTTA S

Catalyst for producing pyromellitic dianhydride from durene comprises carrier and active component loaded on carrier, where active component contains vanadium oxide, optionally phosphorus compounds, cesium compounds, auxiliary agent, heat conducting material and titanium dioxide.

ZHANG Z, ZHANG D, SHI H, YUAN B, LIU Y, AN X

Preparing nano metal catalyst, comprises e.g. preparing metal nanoparticles, dissolving it in a cyclohexane, dispersing activated carbon in mixed solvent consisting of methanol and cyclohexane, and adding obtained solution under stirring and/or ultrasonic conditions.

ZHOU T, LI J

Continuously producing 5-hydroxymethylfurfural and 2,5-furandicarboxylic acid by e.g. dehydrating fructosyl carbohydrate in molecule in two-liquid-phase reaction medium, and adding water to organic phase containing 5-hydroxymethylfurfural.

SUN Q, CHEN G, ZHENG L, DU Z, ZONG B

Initiator useful for preparation of hydro-chlorofluorocarbon by halogenated alkenes and halogenated alkanes to prepare fluorination catalyst for hydro-fluoroolefin, prepared by e.g. initiator precursor composed of iron element and carrier.

QUAN H, QING F, DONG L, ZHANG C

N-butane oxidation catalyst useful in reaction of n-butane oxidation to maleic anhydride, comprises composite oxide of vanadium and phosphorus.

CHEN B, CHEN L, ZENG W, GU L, FENG B

Preparing composite silicon molecular sieve catalyst useful in preparing caprolactam, comprises e.g. mixing organosilicon compound, quaternary ammonium template and water, hydrolysizing, distilling, crystallizing, adjusting to neutral, performing first calcination, and adding graphene oxide.

YAN X, DAI Y, HAN M, KONG M, XU L, DING K, WANG G, GUO H

Ultrasonically assisted preparation of oxygen-enriched defect graphene encapsulated metal nickel catalyst for synthesizing 4-aminoindole, involves adding nickel salt and organic ligand in solvent and performing hydrothermal reaction, followed by performing ultrasonic reflux treatment on precursor.

LI X, YAO Y, YAN W, LU C

Preparing a catalyst useful for producing 3,3',4,4'-biphenyltetracarboxylic dianhydride, comprises dispersing graphene oxide, reducing agent and palladium salt in water, heating, washing and drying.

DU J, WU J, HE H, FAN X, ZHANG G, ZHANG F, LI Y

Preparing furoic acid involves reacting furfural with oxygen to obtain the furoic acid, in aqueous solution and in presence of oxidation catalyst, oxidation catalyst is supported catalyst containing bismuth and noble metal, oxygen is derived from pure oxygen or air.

ZONG B, CHEN G, ZHENG L, SUN Q