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公开(公告)号：US10974225B1
公开(公告)日：2021-04-13
申请号：US16919092
申请日：2020-07-01
发明人： Haoran Li , Xiao Ma , Yong Wang , Baishan Hu , Dan Qiu , Jianyong Mao , Bing Lu , Shanjun Mao , Lili Yu , Qichuan Li
IPC分类号： B01J23/00 , B01J23/889 , C07C29/56 , B01J23/881 , B01J37/02 , B01J37/08 , B01J35/04 , B01J21/06
摘要： The present disclosure belongs to the technical field of catalysis, and particularly relates to a metal oxide coated ceramic corrugated plate catalyst, its preparation method and application thereof in preparation of key intermediates of citral. The catalyst consists of a ceramic corrugated plate carrier and a metal oxide active layer coated on a surface of the carrier, wherein the metal oxide active layer is a metal oxide formed by active ingredient titanium and at least four other metal elements selected from vanadium, chromium, manganese, iron, zirconium, niobium and molybdenum.
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公开(公告)号：US11130115B2
公开(公告)日：2021-09-28
申请号：US16919097
申请日：2020-07-01
发明人： Haoran Li , Yong Wang , Baishan Hu , Xiao Ma , Dan Qiu , Qian Luo , Zhe Wang , Shanjun Mao , Lili Yu , Qichuan Li
摘要： The present invention discloses a selective hydrogenation catalyst and a preparation method and an application thereof, belonging to the technical field of catalysts. The selective hydrogenation catalyst comprises an active component and a carrier for supporting the active component, wherein the active component is a transition metal particle, the carrier is modified by a flexible chain ligand in advance, one end of the flexible chain ligand is uniformly distributed on the surface of the carrier, and the other end of the flexible chain ligand is coordinated on a transition metal. When the catalyst is used for catalytic hydrogenation reaction of dehydrolinalool or 2-methyl-3-butyn-2-ol, the stability is good, the catalyst still has high selectivity after being used for a long time, and the quality of a hydrogenation product can be guaranteed.
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3.发明授权公开(公告)号：US10668460B2
公开(公告)日：2020-06-02
申请号：US16669524
申请日：2019-10-31
申请人： ZHEJIANG NHU COMPANY LTD. , ZHEJIANG UNIVERSITY , SHANDONG NHU PHARMACEUTICAL CO., LTD. , SHANDONG NHU VITAMIN CO., LTD.
发明人： Yong Wang , Lili Yu , Xiao Ma , Jianyong Mao , Zhe Wang , Shanjun Mao , Jingsi Tang , Haoran Li , Zhirong Chen
IPC分类号： B01J37/02 , B01J37/04 , B01J35/10 , C07D495/04 , C07C5/05 , B01J37/16 , B01J23/42 , B01J23/44 , B01J23/46 , B01J37/08 , B01J21/18
摘要： A composite catalyst includes a carrier and noble metal particles supported by the carrier, wherein the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages. The nitrogen-doped porous carbon composite material can include a nitrogen-doped porous carbon material and a plurality of metal oxide particles. The plurality of metal oxide particles can be uniformly distributed in the nitrogen-doped porous carbon material. The plurality of metal oxide particles can be partially exposed through the plurality of passages. The noble metal particles can be tightly combined with the exposed metal oxide particles to achieve recombination. And the noble metal particles can be at least one of Pd metal particles, Pt metal particles, Ru metal particles, Rh metal particles, Ir metal particles, Au metal particles, or a combination thereof.
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4.发明授权公开(公告)号：US10737250B2
公开(公告)日：2020-08-11
申请号：US16558125
申请日：2019-09-01
申请人： ZHEJIANG NHU COMPANY LTD. , ZHEJIANG UNIVERSITY , SHANDONG NHU PHARMACEUTICAL CO., LTD. , SHANDONG NHU VITAMIN CO., LTD.
发明人： Yong Wang , Lili Yu , Xiao Ma , Jianyong Mao , Zhe Wang , Shanjun Mao , Jianqing Li , Gang Chen , Haoran Li , Zhirong Chen
IPC分类号： B01J27/24 , C07C29/17 , B01J35/00 , B01J37/18 , B01J37/08 , B01J37/00 , B01J37/03 , B01J23/62 , B01J35/10
摘要： The present disclosure provides a PdIn alloy catalyst including a carrier and Pd metal particles supported by the carrier, the carrier is a nitrogen-doped porous carbon composite material having a plurality of passages, Pd metal particles are distributed in the plurality of passages, the nitrogen-doped porous carbon composite material includes a nitrogen-doped porous carbon material, a plurality of indium oxide particles, and In metal particles. The In metal particles are exposed through the plurality of passages, the plurality of indium oxide particles are uniformly distributed in the nitrogen-doped porous carbon material, and In atoms of the In metal particles migrated to surfaces of Pd particles selectively occupy edge and corner positions of metal lattice of Pd metal particles. The present disclosure further provides a method for manufacturing the PdIn alloy catalyst and application thereof.
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公开(公告)号：US11772076B2
公开(公告)日：2023-10-03
申请号：US17074548
申请日：2020-10-19
申请人： ZHEJIANG UNIVERSITY
发明人： Yong Wang , Shanjun Mao , Zhe Wang
IPC分类号： B01J21/18 , B01J23/44 , B01J35/00 , B01J35/02 , B01J37/00 , B01J37/03 , B01J3/04 , C07C45/00 , C07C47/02
CPC分类号： B01J23/44 , B01J21/18 , B01J35/002 , B01J35/023 , C07C45/002 , C07C47/02 , C07C2521/18 , C07C2523/44
摘要： Disclosed are a nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst and a preparation method thereof. The preparation method includes preparing nitrogen-doped hierarchical-porous carbon, mixing the nitrogen-doped hierarchical-porous carbon with water, adjusting a pH value of the mixed solution to be alkaline, mixing the mixed solution with a Pd metal precursor aqueous solution, and then adding a reducing agent to obtain the nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst after reduction. The prepared nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst includes a nitrogen-doped porous carbon material carrier with hierarchical pores and Pd metal nanoparticles loaded in the hierarchical pores of the carrier. The Pd metal nanoparticles have a size of 2˜14 nm and a regular polyhedron shape. The nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst has excellent catalytic performance, especially has ultra-high conversion rate, selectivity and cycle stability in the selective hydrogenation reaction of unsaturated ketones, and is a key to open a new synthetic route of vitamin E.
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