国家/地区 中国（17）
IPC部 C（18）
IPC大类 C07（18）
IPC小类 C07C（18）
IPC B01J037/02（6） B01J023/745（4） B01J027/224（4）
B01J027/24（4） C07C017/20（4） C07C019/10（4）
C07C021/18（4） B01J023/888（3） B01J037/08（3）
B01J037/16（3） C07C017/26（3） C07C017/358（3）
C07C209/36（3） B01J020/30（2） B01J027/22（2）
发明人 QUAN H（4） ZHANG C（4） JIA X（3）
QING F（3） DONG L（2） FANG X（2）
LIU X（2） PAN Y（2） WANG L（2）
XIE P（2） YAN C（2） YANG Z（2）
公开年 2023（18）
申请年 2023（18）
专利权人 BEIJING YUJI.（4） QUANZHOU YUJ.（4） WANHUA CHEM .（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

Performing selective oxidation of propylene glycol to hydroxyacetone through liquid phase oxidation involves using copper-infused sulfated zirconium oxide nanoparticles supported on reduced graphene oxide catalyst.

MANGESH V, TAMIZHDURAI P

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 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

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

Preparation of ethyl pyruvate by using ethyl lactate as raw material under catalysis of potassium-doped graphene phase carbon nitride, using white LED lamp as light source, carrying out open reaction and using normal pressure air to oxidize ethyl lactate to ethyl pyruvate.

TONG M, LIU S, LONG Z

Preparation of cobalt alkoxide used as lithium-ion battery negative electrode material, involves adding cobalt acetate and lithium hydroxide into ethylene glycol, heating, reacting at constant temperature, washing, filtering, and drying.

LIU J, HUANG S