公开(公告)号：US10120106B2

公开(公告)日：2018-11-06

申请号：US14910476

申请日：2014-08-05

申请人： Beijing University of Chemical Technology ,  Changzhou Institute of Advanced Material of Beijing University of Chemical Technology

发明人： Zhigang Shen ,  Jimmy Sung Lai Yun ,  Jianfeng Chen ,  Xiaofei Zeng

IPC分类号： G02B1/10 ,  C01G39/02 ,  C01G41/02 ,  C01G41/00 ,  C09D5/32 ,  C09C1/00 ,  G02B5/20

摘要： The present invention is related to a method for preparing VIB Group metal oxide particles or dispersions, wherein the VIB Group metal is tungsten or molybdenum. The methods include: 1) providing precursors of VIB Group metal oxide, reductants and supercritical fluids. 2) said VIB Group metal oxide particles, or dispersions are obtained by the reaction between said metal oxide precursors, and reductants are under supercritical state in said supercritical fluids. Especially, said VIB Group metal oxide can be tungsten bronze, molybdenum bronze, or tungsten and molybdenum bronze which can be present by the formula AxByMOz. Wherein, A represents element exists in the form of dopant cation; and B represents element exists in the form of dopant anion; O represents oxygen; 0≤x≤1, 0≤y≤1, 0

公开(公告)号：US20160178804A1

公开(公告)日：2016-06-23

申请号：US14910476

申请日：2014-08-05

申请人： BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY ,  CHANGZHOU INSTITUTE OF ADVANCED MATERIAL OF BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY

发明人： Zhigang SHEN ,  Jimmy Sung Lai YUN ,  Jianfeng CHEN ,  Xiaofei ZENG

IPC分类号： G02B1/10 ,  C01G39/02 ,  G02B5/20 ,  C01G41/02

CPC分类号： G02B1/10 ,  C01G39/02 ,  C01G41/00 ,  C01G41/02 ,  C01P2002/30 ,  C01P2002/34 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/60 ,  C09C1/00 ,  C09C1/0003 ,  C09D5/32 ,  G02B5/208 ,  Y02P20/544

摘要： The present invention is related to a method for preparing VIB Group metal oxide particles or dispersions, wherein the VIB Group metal is tungsten or molybdenum. The methods include: 1) providing precursors of VIB Group metal oxide, reductants and supercritical fluids. 2) said VIB Group metal oxide particles, or dispersions are obtained by the reaction between said metal oxide precursors, and reductants are under supercritical state in said supercritical fluids. Especially, said VIB Group metal oxide can be tungsten bronze, molybdenum bronze, or tungsten and molybdenum bronze which can be present by the formula AxByMOz. Wherein, A represents element exists in the form of dopant cation; and B represents element exists in the form of dopant anion; O represents oxygen; 0≦x≦1, 0≦y≦1, 0

摘要翻译： 本发明涉及一种制备VIB族金属氧化物颗粒或分散体的方法，其中VIB族金属是钨或钼。 方法包括：1）提供VIB族金属氧化物，还原剂和超临界流体的前体。 2）所述VIB族金属氧化物颗粒或分散体是通过所述金属氧化物前体之间的反应获得的，还原剂在所述超临界流体中处于超临界状态。 特别地，所述VIB族金属氧化物可以是钨青铜，钼青铜，或钨和钼青铜，其可通过式AxByMOz存在。 其中，A表示元素以掺杂剂阳离子的形式存在; B表示元素以掺杂剂阴离子的形式存在; O表示氧; 0＆nlE; x＆nlE; 1，0＆nlE; y＆nlE; 1,0

公开(公告)号：US20240325505A1

公开(公告)日：2024-10-03

申请号：US18288797

申请日：2022-09-08

申请人： Beijing University of Chemical Technology

发明人： Qipeng YUAN ,  Li CHENG ,  Pengtao LIU

IPC分类号： A61K38/47 ,  A61K31/7028 ,  A61P17/00 ,  A61P17/14

CPC分类号： A61K38/47 ,  A61K31/7028 ,  A61P17/00 ,  A61P17/14 ,  C12Y302/01147

摘要： The present disclosure relates to a pharmaceutical composition for improving and treating leukotrichia and/or alopecia and a preparation method thereof. In the present disclosure, the pharmaceutical composition includes glucoraphanin and myrosinase as active ingredients, where the glucoraphanin has a content of 0.1% to 50% and the myrosinase has a total enzyme activity of 0.1 mU to 10 U based on a total weight of the pharmaceutical composition. The pharmaceutical composition shows safety, rapidity, effective improvement and treatment of leukotrichia and/or alopecia, and wide application range for subjects.

公开(公告)号：US12065358B2

公开(公告)日：2024-08-20

申请号：US17857952

申请日：2022-07-05

申请人： Beijing University of Chemical Technology

发明人： Feng Li ,  Jindong Ji ,  Guoli Fan

IPC分类号： C01B39/38

CPC分类号： C01B39/38

摘要： Disclosed are a ZSM-5 molecular sieve and a preparation method and use thereof. In this disclosure, a silicon source, an aluminum source, sodium hydroxide, a template and water are mixed in a rotating micro liquid membrane reactor, and then subjected to a hydrothermal crystallization to obtain the ZSM-5 molecular sieve.

公开(公告)号：US12053746B2

公开(公告)日：2024-08-06

申请号：US17418578

申请日：2020-03-05

申请人： BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY

发明人： Yong Luo ,  Di Wang ,  Guangwen Chu ,  Yachao Liu ,  Zhihao Li ,  Yong Cai ,  Haikui Zou ,  Baochang Sun ,  Jianfeng Chen

IPC分类号： B01F23/233 ,  B01F23/2375 ,  B01F27/81 ,  B01J7/02 ,  B01F101/00

CPC分类号： B01F23/2331 ,  B01F23/2375 ,  B01F27/81 ,  B01J7/02 ,  B01F23/23314 ,  B01F2101/2204 ,  B01F2215/0431

摘要： The present application provides a high-gravity device for generating nano/micron bubble and a reaction system. In the device, the liquid phase is continuous phase and the gas phase is dispersed phase. A gas enters the interior of the device from a hollow shaft, and the gas is subjected to primary shearing under a shearing effect of aerating micropores to form bubbles; then, the bubbles rapidly disengage from the surface of a rotating shaft under the effect of the rotating shaft rotating at a high speed, and are subjected to secondary shearing under the high-gravity environment with the strong shearing force formed by the rotating shaft to form nano/micron bubbles. The device has the advantages of fastness, stability, and small average particle size. The average particle size of the formed nano/micron bubbles is between 800 nanometers and 50 microns, and the average particle size of the bubbles can be regulated in a range by adjusting the rotating speed of the rotating shaft.

公开(公告)号：US20240085510A1

公开(公告)日：2024-03-14

申请号：US18052580

申请日：2022-11-04

申请人： Power Supply Service and Management Center, State Grid Jiangxi Electric Power Co., Ltd. ,  Beijing University of Chemical Technology

发明人： Jian Ma ,  Tao Hu ,  Xuewei Wang ,  Kexu Chen ,  Di Wu ,  Yan Zhao ,  Gaofeng Deng ,  Qiang Liu ,  Aichao Yang ,  Yanlinzi Huang

IPC分类号： G01R35/00 ,  G01R19/10

CPC分类号： G01R35/00 ,  G01R19/10

摘要： Disclosed are a dynamic error measurement apparatus, system, and method for an electricity meter. The measurement apparatus includes a test signal generation unit configured to generate a voltage test signal and two-circuit current test signals, output the voltage test signal to a measurement unit, and output the two-circuit current test signals to the measurement unit and a current summation unit; the measurement unit configured to determine two-circuit electric energy values based on the voltage test signal and the two-circuit current test signals, and output the two-circuit electric energy values to a calculation control unit; the current summation unit configured to determine a combined current signal based on the two-circuit current test signals; and the calculation control unit configured to determine a total electric energy value based on the two-circuit electric energy values. The system includes a standard meter and a measurement apparatus.

公开(公告)号：US20240076277A1

公开(公告)日：2024-03-07

申请号：US18269109

申请日：2021-12-24

申请人： QUZHOU JUHUA POLYAMIDE FIBRE LLC. ,  Beijing University of Chemical Technology ,  Juhua Group Co., Ltd.

发明人： Liangliang ZHANG ,  Liyang ZHOU ,  Guangwen CHU ,  Bibo XIA ,  Jianfeng CHEN ,  Yutu JIANG ,  Jihong TONG ,  Baochang SUN ,  Wei MAO ,  Yanchun ZHENG

IPC分类号： C07D303/08

CPC分类号： C07D303/08

摘要： A system and method for preparing epoxy chloropropane is provided in that by coupling three stages of high gravity reactors, the product epoxy chloropropane and water vapor are distilled from a reaction system in form of an azeotrope by adopting a water vapor steam stripping method. Further, by combining the azeotrope with the multiples stages of high gravity reactors, the gas phase mass transfer and the liquid phase mass transfer of the azeotrope are improved aiming at the features of the azeotrope in the reaction system, thus making the overall conversion rate higher. In addition, by combining steam stripping and high gravity, dichloropropanol and alkali solution are rapidly mixed for mass transfer, and the product epoxy chloropropane is rapidly distilled from the reaction system in the form of the azeotrope, such that the reaction proceeds continuously towards the direction of producing epoxy chloropropane, thus significantly improving the conversion rate.

公开(公告)号：US20230241576A1

公开(公告)日：2023-08-03

申请号：US17919239

申请日：2020-07-28

申请人： BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY

发明人： Xiaojin YANG ,  Jingqi ZHANG ,  Tong ZHENG ,  Yang TANG ,  Pingyu WAN

IPC分类号： B01J20/04 ,  B01J20/08 ,  B01J20/02 ,  B01J20/28 ,  B01J20/30 ,  C09K17/08 ,  C02F1/52 ,  C02F1/70

CPC分类号： B01J20/04 ,  B01J20/08 ,  B01J20/0229 ,  B01J20/0248 ,  B01J20/3021 ,  B01J20/3078 ,  B01J20/28004 ,  B01J20/28021 ,  C02F1/705 ,  C02F1/5236 ,  C09K17/08 ,  C02F2103/06

摘要： A composite material, wherein the composite material contains aluminum alloys with at least one of alkaline-earth metals and transition metals, and are used for removing pollutants by dissolving to release divalent metal ions, trivalent aluminum ions and hydroxide ions, which contact with other divalent and trivalent metal cations and anions in the contaminated water, to perform an in situ self-assemble of two-dimensional Layered Double Hydroxides (LDH) precipitates; consists of 18-70 weight% of aluminum metal, 30-80% weight of a second type of metal, and 0-2 weight% of an auxiliary agent; has a particle size of 0.01-3 mm; and preferably forms a micro-nano Alloy@LDH composite material with a core-shell structure by pretreating with dilute HCl. The present invention is used for soil remediation or sewage purification, and is suitable for chemical removal and degradation of complex contaminants from an acidic to alkaline environment.

公开(公告)号：US11691138B2

公开(公告)日：2023-07-04

申请号：US17335019

申请日：2021-05-31

申请人： Beijing University of Chemical Technology

发明人： Yanan Liu ,  Junting Feng ,  Fengzhi Fu ,  Dianqing Li ,  Yufei He

IPC分类号： B01J37/03 ,  B01J23/78 ,  B01J37/02 ,  B01J37/06 ,  B01J37/08 ,  B01J37/16 ,  C07C5/09

CPC分类号： B01J37/035 ,  B01J23/78 ,  B01J37/0236 ,  B01J37/06 ,  B01J37/08 ,  B01J37/16 ,  C07C5/09

摘要： Cuy/MMgOx interfacial catalyst for selective alkyne hydrogenation and its preparation method are disclosed. The preparation method of the catalyst includes: the mixture of salt and alkali solution is nucleated momentarily by nucleation/crystallization isolation method, preparing the composite metal hydroxide CuyMMg4-LDHs as precursor, which has typical hexagonal morphology of the double hydroxide; the precursor is topologically transformed by heat treatment to produce unsaturated oxide; the catalyst with Cuy-MMgOx interface structure is prepared by separating and electronically modifying Cu particles. By adjusting the ratio of Cu2+/M3+ in LDHs, the electronic and geometric structure of Cuy-MMgOx interface can be flexibly controlled, thus enhancing the reaction activity, product selectivity and stability. The catalyst can be used in the selective hydrogenation of various alkynes in the fields of petrochemical and fine chemical industry, with the outstanding catalytic activity and C═C double bond selectivity. The catalyst also has good reusability.

公开(公告)号：US20230191373A1

公开(公告)日：2023-06-22

申请号：US18074494

申请日：2022-12-04

申请人： Beijing University of Chemical Technology

发明人： Junting Feng ,  Dianqing LI ,  Qian Wang ,  Jiaxuan Fan ,  Xiaoxue Yue ,  Yufei He ,  Yanan Liu

IPC分类号： B01J27/232 ,  B01J37/00 ,  B01J37/04 ,  B01D53/14 ,  B01J35/00 ,  B01J21/02 ,  B01J23/00 ,  B01J38/02 ,  B01J38/48

CPC分类号： B01J27/232 ,  B01J37/0036 ,  B01J37/04 ,  B01D53/1425 ,  B01J35/004 ,  B01J21/02 ,  B01J23/007 ,  B01J38/02 ,  B01J38/48 ,  B01D2255/65 ,  B01D2255/902 ,  B01D2255/802 ,  B01D2257/504 ,  B01D2259/802

摘要： The present invention discloses a catalyst for in-situ CO2 capture and coupling reduction with biomass oxidation, a preparation method therefor and an application thereof. The catalyst is applied to the coupling reaction of photocatalytic CO2 reduction and biomass oxidation. The preparation of the catalyst is to synthesize layered double hydroxides (LDHs) containing CO32− between layers by using coprecipitation method, hydrothermal method, sol-gel method and the like, wherein the chemical formula is [M1-x2+Mx3+(OH)2]x+(An−)x/n·mH2O, which has a thickness of 20-30 nm and an average particle diameter of 60-90 nm. Then metal ion vacancy defects are produced on LDHs laminate by using a NaOH/KOH selective etching to obtain the corresponding catalyst. The catalyst is used in photocatalytic reaction, characterized in that CO32− is continuously consumed in the reaction process, and the catalyst can absorb CO2 in the air for recovery after the reaction, and can be repeatedly used to continuously consume CO2 in the air, thus realizing the direct capture and effective utilization of CO2.