国家/地区 中国（17）
IPC部 B（17）
IPC大类 B01（17）
IPC小类 B01J（17）
IPC B01J027/24（4） B01J037/08（4） B01J020/26（2）
B01J020/30（2） B01J023/80（2） B01J031/02（2）
B01J037/18（2） C07C029/154（2） C07C031/04（2）
发明人 ZHANG X（17）
公开年 2017（4） 2023（4） 2018（3） 2016（2） 2021（2） 2022（2）
申请年 2016（5）  2022（4）  2017（3）  2021（2） 
专利权人 UNIV NINGXIA（2）

Synthesizing diethyl oxalate comprises e.g. placing oxalic acid, ethanol, toluene and catalytic adsorption solid material into the reactor and mixing, gradually heating the reactor from room temperature, and heating the esterification mixture.

ZHANG X

Catalyst for directionally synthesizing alkyl carbonate from alkyl oxalate, comprises calcium-magnesium-aluminum hydrotalcite modified by modifier.

LI Z, ZHANG X, YUAN X, WANG X, CHEN W, LI J, WAN Z, WANG W, YU G, XIA R, PANG X, LI G, XIONG X, SONG X, SHI L, SUN Y, ZHOU J, ZHENG W

Preparing catalyst useful for synthesizing caprolactam, comprises stirring and mixing raw materials including graphene oxide, phosphorus source and solvent, and subjecting mixture to solid-liquid separation, washing, drying, and roasting in nitrogen or inert gas atmosphere.

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

Preparing catalyst used for preparing vanillic aldehyde and 4-methyl guaiacol, involves mixing metal nickel salt, cobalt salt, carbon source, and amine source in solvent in certain proportion, heating, stirring to form uniform jelly, and drying jelly to obtain the catalyst precursor.

CHEN L, ZHANG Q, ZHANG X, MA L, LIU J

Preparing membrane catalytic material useful in Knoevenagel condensation reaction comprises e.g. reacting, mixing graphene oxide dispersion liquid, organic amine and activator, carrying out dialysis treatment and ultrasonic treatment, and performing vacuum filtration.

ZHANG X, PANG S, JIANG L

Graphene-based nitrogen-doped hierarchical porous carbon-supported palladium catalyst for hydrorefining of crude terephthalic acid, comprises palladium element, graphene-based nitrogen-doped hierarchical porous carbon, and nitrogen element.

HE G, YANG Y, BIAN W, ZHANG X, ZHENG Q, YIN D

Resource utilization of canthaxanthin heterogeneous filter mother liquor involves taking isomerous filtering mother liquor containing canthaxanthin over-oxidizing impurity as reaction substrate, subjecting to deoxidizing and reducing reaction, under action of modified catalyst and reducing agent.

WANG J, ZHANG Y, SHEN H, ZHANG X, SONG J

Graphene-coated catalyst useful for encapsulating iron carbide particles and synthesizing gas to prepare low-carbon olefin, comprises glucose as a carbon source, ferric nitrate as an iron source, and potassium as an auxiliary agent.

WANG C, TIAN Z, CHEN L, WEN C, ZHANG X, LIU Q, MA L

Preparation of 2,3-dichloropyridine involves obtaining graphene-copper oxide composite catalyst, adding 2-chloro-3-aminopyridine and concentrated hydrochloric acid, cooling, adding solution of sodium nitrite, and further processing.

ZHANG L, SI N, ZHANG X, ZHOU Y, SHI L, ZHANG J

Preparation of nitrogen-doped graphene-based porous carbon material by mixing graphite oxide, soluble sugar and water, ultrasonically dispersing, adding N,N'-dicyclohexylcarbodiimide, obtaining mixed solution and fully reacting.

DAI Y, MAI Y, ZHANG L, ZHONG B, WEN W, GAO M, GU K, ZHANG X, LIAO B