国家/地区 中国（67）
IPC部 C（67）
IPC大类 C07（67） B01（56） C01（6）
C09（4） H01（4） B82（3）
C08（3） C10（2）
IPC小类 C07C（67）
IPC B01J027/24（14） B01J035/00（8） B01J021/18（7）
B01J027/224（6） B01J037/02（6） B01J037/08（6）
B01J035/10（5） C07C017/20（5） C07C019/10（5）
B01J023/745（4） B01J027/22（4） B01J031/22（4）
C07C021/18（4） B01J008/06（3） B01J023/10（3）
发明人 WANG Y（6） ZHANG C（6） LI J（5）
LIU X（5） LI Y（4） QUAN H（4）
CHEN X（3） FAN L（3） JIA X（3）
LI Z（3） LIU J（3） LIU S（3）
QING F（3） SONG X（3） WANG G（3）
公开年 2023（67）
申请年 2022（43）  2023（17）  2021（7） 
专利权人 BEIJING YUJI.（4） CHINA PETROL.（4） QUANZHOU YUJ.（4） WANHUA CHEM .（4）
CAS DALIAN C.（3） CHINA PETROL.（3） UNIV LIAONIN.（3） UNIV ZHEJIAN.（3）
CHANGSHU 3F .（2） SHANGHAI HUA.（2） UNIV NANJING.（2） WEIFANG HONG.（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

Core-shell structure allyl acetate catalyst useful for preparing allyl acetate, comprisese.g. vanadium carbide, and palladium, gold, or copper coating and sodium acetate and/or potassium acetate which are sequentially coated on outer surface of carrier.

KONG D, BU L, YANG Z, WANG L, YIN L, YANG T, HE C, XU Q

Preparing diamines and polyamines containing diphenylmethane structure with low acid consumption comprises e.g. undergoing salt-forming reaction to generate aniline salt, mixing aniline salt and formaldehyde solution for reaction, adding solution to separator, and washing organic phase with alkali.

LI C, CUI C, ZHANG H, LI Y, ZHANG Y, LIN F

Preparing aluminum fluoride/wave absorbing material composite catalyst useful in fluorine-chlorine exchange reaction of chloroform and fluoalkane, comprises ball milling and mixing and roasting aluminum fluoride and wave absorbing material.

WEI X, WANG C, YU H, ZHANG J, LIU W, ZHOU F, HAN W, WANG S

Preparing a supported cobalt-based catalyst useful in the hydrogenation reaction of carbon monoxide, comprises e.g. mixing two soluble salts and auxiliary agents with solvent to prepare impregnating solution, impregnating the carrier, drying to prepare semi-dry base catalyst precursor and roasting.

DONG W, GONG L, LU W, LI Y, ZHU H, ZHAO Z, DING Y

Preparing structure-controllable graphene shell encapsulation nickel nanoparticle catalyst in applying in catalytic hydrogenation reaction of p-chloronitrobenzene, o-chloronitrobenzene or p-bromonitrobenzene, involves reacting nickel salt and organic ligand dissolved in mixed organic solvent.

LI X, YU J, HE W, LU C

Preparing beta-apo-8'-carotene acid ethyl ester, comprises adding decacarbon dialdehyde, C5 phosphine salt, C15 phosphine salt and bimetallic supported catalyst into reaction flask under nitrogen atmosphere, and slowly adding alkali solution dropwise after certain period of reaction.

ZHANG T, YANG Z, XUE A, SHEN H, WANG L, WANG J

Preparing high-purity m-xylene comprises e.g. contacting the mixed xylene with the adsorbent, discharging the raffinate, then contacting the desorbent with the adsorbed adsorbent, mixing the first part of m-xylene with the second part of m-xylene, cooling, crystallizing, and washing.

XIE P, YAN C, MENG L, FANG X, PAN Y, LI Z, XU X, LIU X

Preparing 2,3-butanediol from ethanol, comprises adding or not adding solvent into reactor, adding ethanol, semiconductor photocatalyst and metal salt additive, replacing atmosphere in reaction system with inert atmosphere, reacting with light, and purifying.

LUO N, GAO Z, WANG F

Supported diatomic catalyst useful in selective hydrogenation of aromatic nitro compounds, comprises noble metal and non-noble metal; and carrier.

LIANG S, SUN S, REN Y, YANG M