Patents by Inventor Zhaoqiang Li
Zhaoqiang Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11590480Abstract: The present invention discloses a molecular sieve and its preparation method. The molecular sieve has micromorphology in a football shape and consists of molecular sieve framework and active elements. The molecular sieve framework comprises silicon element and aluminum element; the active elements comprise copper element and rare earth elements. The rare earth elements are one or more selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Sc and Y. The mass ratio of the silicon element to the aluminum element is 3-9:1. The content of the copper element in the molecular sieve is 1.5-3.2 wt %. The mass of rare earth elements is 50 ppm-2 wt % of the molecular sieve framework. The mass of the silicon element is calculated by silicon dioxide, the mass of aluminum element is calculated by aluminum oxide, the mass of copper element is calculated by copper oxides, and the mass of rare earth elements is calculated by rare earth oxides.Type: GrantFiled: May 25, 2021Date of Patent: February 28, 2023Assignees: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Yan Wang, Zhaoqiang Li, Zhiyong Ding, Rongrong Fan, Cheng Zhang, Yu Wang, Xin Guo, Na Kang, Wei Liu, Rong Wang, Jing Song
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Publication number: 20210283586Abstract: The present invention discloses a molecular sieve and its preparation method. The molecular sieve has micromorphology in a football shape and consists of molecular sieve framework and active elements. The molecular sieve framework comprises silicon element and aluminum element; the active elements comprise copper element and rare earth elements. The rare earth elements are one or more selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Sc and Y. The mass ratio of the silicon element to the aluminum element is 3-9:1. The content of the copper element in the molecular sieve is 1.5-3.2 wt %. The mass of rare earth elements is 50 ppm-2 wt % of the molecular sieve framework. The mass of the silicon element is calculated by silicon dioxide, the mass of aluminum element is calculated by aluminum oxide, the mass of copper element is calculated by copper oxides, and the mass of rare earth elements is calculated by rare earth oxides.Type: ApplicationFiled: May 25, 2021Publication date: September 16, 2021Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD.Inventors: Yan Wang, Zhaoqiang Li, Zhiyong Ding, Rongrong Fan, Cheng Zhang, Yu Wang, Xin Guo, Na Kang, Wei Liu, Rong Wang, Jing Song
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Patent number: 11110437Abstract: A method for preparing an SCR catalyst may include: (1) placing a first aqueous solution containing a titanium oxide and a tungstate in an electric field environment, adjusting the pH value of the first aqueous solution, and adjusting the current direction of the electric field environment to obtain a first mixture; (2) providing a second mixture by, in the electric field environment, adding dropwise a second aqueous solution containing a soluble salt of one or more active components, a copper-organic polyamine complex and a dispersant to the first mixture, and adjusting the current direction; and (3) processing the second mixture to obtain the SCR catalyst. The one or more active components may be selected from Ce, Zr, Cu, Fe, Pr and Sc.Type: GrantFiled: July 17, 2019Date of Patent: September 7, 2021Assignees: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., HEBEI HWAT AUTOMOBILE COMPONENTS CO., LTD.Inventors: Wenyi Zhao, Yan Wang, Zhaoqiang Li, Cheng Zhang, Rongrong Fan, Xin Guo, Yu Wang, Rong Wang, Lihua Song, Yanhai Song, Yuan Li, Zhiyong Ding, Jing Song
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Publication number: 20200038845Abstract: A method for preparing an SCR catalyst may include: (1) placing a first aqueous solution containing a titanium oxide and a tungstate in an electric field environment, adjusting the pH value of the first aqueous solution, and adjusting the current direction of the electric field environment to obtain a first mixture; (2) providing a second mixture by, in the electric field environment, adding dropwise a second aqueous solution containing a soluble salt of one or more active components, a copper-organic polyamine complex and a dispersant to the first mixture, and adjusting the current direction; and (3) processing the second mixture to obtain the SCR catalyst. The one or more active components may be selected from Ce, Zr, Cu, Fe, Pr and Sc.Type: ApplicationFiled: July 17, 2019Publication date: February 6, 2020Applicants: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS, NATIONAL ENGINEERING RESEARCH CENTRE OF RUIKE RARE EARTH METALLURGY AND FUNCTION MATERIALS CO., LTD., HEBEI HWAT AUTOMOBILE COMPONENTS CO., LTD.Inventors: Wenyi Zhao, Yan Wang, Zhaoqiang Li, Cheng Zhang, Rongrong Fan, Xin Guo, Yu Wang, Rong Wang, Lihua Song, Yanhai Song, Yuan Li, Zhiyong Ding, Jing Song
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Publication number: 20110082279Abstract: The invention relates to chemiluminescent compounds of general formula (I) wherein: either: R1 is a reactive group capable of reacting with an amine or thiol moiety; L1 is a hydrocarbon linker moiety comprising 2-12 carbon atoms, optionally substituted with hydroxy, halo, nitro or C1-C4 alkoxy; and R2 is hydrogen, C1-C4 alkyl, C1-C4 haloalkyl, aryl, fused aryl, C1-C4 alkoxy, C1-C4 acyl, halide, hydroxy or nitro; or, alternatively: the combination R1-L1- comprises a C1-C4 alkyl group optionally substituted with hydroxy, halo, nitro or C1-C4 alkoxy; and R2 comprises a group R4-L1-, where R4 is a reactive group capable of reacting with an amine or thiol moiety; and L1 is as defined above; L2 is —C(?O)O—, —C(?O)—S— or —C(?O)N(SO2R5)—, wherein, in each case, the —C(?O) is linked to the ring carbon atom, and R5 is C1-C8 alkyl, aryl, C1-C8 alkoxy or C1-C8 acyl; R3 is a substituted C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl or aryl group wherein at least one of the said substituents is electron-withdrawiType: ApplicationFiled: December 10, 2010Publication date: April 7, 2011Applicant: GEN-PROBE INCORPORATEDInventors: Ian WEEKS, Andrew J. RUTTER, Zhaoqiang LI, Keith Smith
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Publication number: 20070166759Abstract: The invention relates to chemiluminescent compounds of general formula: (I) wherein: either: R1 is a reactive group capable of reacting with an amine or thiol moiety; L1 is a hydrocarbon linker moiety comprising 2-12 carbon atoms, optionally substituted with hydroxy, halo, nitro or C1-C4 alkoxy; and R2is hydrogen, C1-C4 alkyl, C1-C4 haloalkyl, aryl, fused aryl, C1-C4 alkoxy, C1-C4acyl, halide, hydroxy or nitro; or, alternatively: the combination R1-L1- comprises a C1-C4 alkyl group optionally substituted with hydroxy, halo, nitro or C1-C4 alkoxy; and R2 comprises a group R4-L1-, where R4 is a reactive group capable of reacting with an amine or thiol moiety; and L1 is as defined above; L2 is —C(?O)O—, —C(?O)—S— or —C(?O)N(SO2R5)—, wherein, in each case, the —C(?O) is linked to the ring carbon atom, and R5 is C1-C8 alkyl, aryl, C1-C8 alkoxy or C1-C8 acyl; R3 a substituted C1-C8 alkyl, C2-C8 alkenyl, C1-C8 alkynyl or aryl group wherein at least one of the said substituents is electron-withdrawing such that the pType: ApplicationFiled: August 26, 2004Publication date: July 19, 2007Inventors: Ian Weeks, Andrew Rutter, Zhaoqiang Li, Keith Smith
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Patent number: 7169554Abstract: Oligonucleotide building processes are monitored by means of an oligonucleotide probe which in one embodiment is labelled at one end with a chemiluminescent label and at the other end with a quencher molecule. The conformation of the oligonucleotide probe changes according to whether the probe hybridises with a substantially complementary nucleic acid sequence. In the non-hybridised state the chemiluminescent label is sufficiently close proximity to the quencher that the chemiluminescent emission is substantially attenuated, but in the hybridised state the separation is such that there is little or no attenuation. Particular probes and emitter/quencher pairs are disclosed.Type: GrantFiled: December 11, 2000Date of Patent: January 30, 2007Assignee: Gen-Probe IncorporatedInventors: Andrew James Rutter, Ian Weeks, Zhaoqiang Li, Keith Smith
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Publication number: 20030082713Abstract: Oligonucleotide building processes are monitored by means of an oligonucleotide probe which in one embodiment is labelled at one end with a chemiluminescent label and at the other end with a quencher molecule. The conformation of the oligonucleotide probe changes according to whether the probe hybridises with a substantially complementary nucleic acid sequence. In the non-hybridised state the chemiluminescent label is sufficiently close proximity to the quencher that the chemiluminescent emission is substantially attenuated, but in the hybridised state the separation is such that there is little or no attenuation. Particular probes and emitter/quencher pairs are disclosed.Type: ApplicationFiled: August 12, 2002Publication date: May 1, 2003Inventors: Andrew James Rutter, Ian Weeks, Zhaoqiang Li, Keith Smith