国家/地区 中国（17）
IPC部 B（18） C（18）
IPC大类 B01（18）
IPC小类 B01J（18）
IPC B01J037/02（6） B01J023/745（4） B01J027/224（4）
B01J027/24（4） C07C017/20（4） C07C019/10（4）
C07C021/18（4） B01J020/30（3） B01J023/888（3）
B01J037/08（3） B01J037/16（3） C07C017/26（3）
C07C017/358（3） C07C209/36（3） B01D015/38（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 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

High strength polysaccharide-inorganic nanoparticle composite column is prepared by adding different inorganic nano-particles, transferring obtained emulsion to stainless steel or glass column pipe with rubber plug at one end by injector, and utilizing peristaltic pump to circulate mixed solution.

LI J, LI Y, QU J

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

Catalytic oxidation of ethylene glycol to produces glyoxal using composite silver comprises packing the composite silver catalyst in reaction section of the catalytic reactor, vaporizing ethylene glycol for oxidation reaction to generate glyoxal products.

CHEN G, LI L, ZHONG M, ZHONG J