国家/地区 中国（8）
IPC部 B（8）
IPC大类 C07（8） B01（7） C09（3）
C02（2） G01（2）
IPC小类 C07D（8）
IPC B01J037/02（3） B01J037/10（3） B01J020/22（2）
B01J020/281（2） B01J020/30（2） B01J033/00（2）
B01J037/08（2） B01J037/16（2） C02F001/28（2）
C07D311/16（2） C09K011/06（2） G01N021/64（2）
发明人 ZHANG Y（8）
公开年 2020（4）
申请年 2020（4） 
专利权人 UNIV QIQIHAR（2）

Pod-type degradable temporary plugging ball useful in temporary plugging treatment of oil and gas wells in fracturing system, comprises degradable outer shell (comprising e.g. polymerized product of glycolide, lactide, polybutylene succinate prepolymer) and inner core.

LI H, ZHANG Y, SHANG L, HUANG B, LIU J, WANG Y, YANG X, JIANG Q

Preparing catalyst comprises loading auxiliary agent center on carrier to obtain catalyst precursor A loaded with catalytic active center to obtain catalyst precursor B and covering catalyst precursor B outer surface with protective layer.

YU L, FANG W, DONG J, ZHANG Y, ZHENG B, ZHANG H

Nickel zinc copper nanocomposite dehydrogenation catalyst comprises used for catalytic dehydrogenation of pyridine to synthesize 2,2'-bipyridyl redox graphene and nanocomposite of nickel zinc copper nitrogen-carbon core-shell nanospheres.

ZHOU Y, WANG J, BAO J, ZHANG Y, BU X, ZHANG Z, LIU W, WANG Y

New graphene oxide-coumarin derivative fluorescent material used as fluorescent probe for detecting trivalent iron ions, or adsorbent for trivalent iron ions.

MA W, LI Z, YU Z, WEN J, WU T, ZHANG Y, WANG L, CHU H

Bifunctional heterogeneous palladium-MIL101-sulfonated graphene oxide composite material for beta-alkoxyalcohol catalytic synthesis, is prepared by stirring e.g. sulfonated graphene oxide, terephthalic acid and chromium nitrate nonahydrate.

ZHANG Y, TANG H, LI X, ZHOU M, WU Q, LIU D

New graphene oxide fluorescent material useful as fluorescent probe for detecting ferric ion or as adsorbent for ferric ion and water treatment.

MA W, WEN J, YU Z, LI Z, ZHANG Y, WANG L, WU T, CHU H

Preparation of cyclic carbonate by adding autoclave with, e.g. epoxy compound and lanthanum-modified graphene catalyst, stirring, dispersing, sealing, vacuumizing, replacing air with carbon dioxide, heating and dissolving in organic solvent.

WANG Q, ZHANG Y

Preparation of palladium-supported graphene-based catalyst includes dispersing graphite oxide in deionized water, replacing solvent in palladium-loaded graphene hydrogel with deionized water and freeze-drying.

ZHU C, ZHAO Y, ZHANG Y, ZHANG J, YANG B, HAI Y, QIU Z, LI P, XU J