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1.发明申请公开(公告)号：US20200347186A1
公开(公告)日：2020-11-05
申请号：US16957934
申请日：2018-07-12
发明人： Woyuan LI , Hong YIN , Zhirong CHEN , Baishan HU , Guiyang ZHOU , Hangjun DENG , Ming LIAN , Xiongwei ZHANG , Qichuan LI , Jiang ZHAO
IPC分类号： C08G75/0254 , C08G75/029 , C08G75/0213
摘要： The present application relates to a method for extracting coenzyme Q10 and a phospholipid from a coenzyme Q10 fermentation bacterium powder. The method is characterized in that the fermentation bacterium powder of a coenzyme Q10 production strain is subjected to extraction with a mixed solvent of which the three-dimensional Hansen solubility parameter is between 21 and 23 (J/cm3)1/2 and the hydrogen bonding solubility parameter thereof is between 10 and 12 (J/cm3)1/2. The present invention can efficiently extract two products, namely coenzyme Q10 and a phospholipid, from the coenzyme Q10 fermentation bacterium powder; the process thereof is highly operable, easy to be industrialized, and can provide a product with high purity and yield, having great economic benefit.
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公开(公告)号：US20230019023A1
公开(公告)日：2023-01-19
申请号：US17952395
申请日：2022-09-26
发明人： Zhirong CHEN , Woyuan LI , Hong YIN , Baishan HU , Guiyang ZHOU , Ming LIAN , Guangde QIN , Hangjun DENG , Xiongwei ZHANG , Guisheng QIU , Kejun WU
IPC分类号： C08G75/029 , C08G75/0209 , C08G75/0259 , C08J5/18
摘要： A sulfur-containing compound and a halogenated aromatic compound are used as raw materials, with an alkaline compound and a fatty acid as polycondensation aids to carry out a polycondensation reaction. After purification treatment, a primary polyphenylene sulfide is obtained which then reacts with a chain extender at high temperature to form a high molecular weight polyphenylene sulfide resin. A preparation method has the advantages of being high yield, low cost, and capable of selectively and controllably preparing polyphenylene sulfide resins with different melt viscosities and molecular weights, and the obtained polyphenylene sulfide resins have excellent heat resistance. The linear high molecular weight polyphenylene sulfide resin with high thermal stability can be used for producing plates, pipes and rods, can be mechanically processed like metals, such as cutting, grinding, polishing, drilling, and can be used to produce fibers, membranes, films, and are applicable to automotive parts, electronic/electrical equipment, chemical and machinery.
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公开(公告)号：US20210047471A1
公开(公告)日：2021-02-18
申请号：US16968907
申请日：2019-08-23
发明人： Zhirong CHEN , Woyuan LI , Hong YIN , Baishan HU , Guiyang ZHOU , Ming LIAN , Guangde QIN , Hangjun DENG , Xiongwei ZHANG , Guisheng QIU , Kejun WU
IPC分类号： C08G75/029 , C08G75/0209 , C08G75/0259 , C08J5/18
摘要： The disclosure relates to a high molecular weight polyphenylene sulfide resin and a preparation method and application thereof. The disclosure uses a sulfur-containing compound and a halogenated aromatic compound as raw materials, an alkaline compound and a fatty acid as polycondensation aids to carry out a polycondensation reaction. After purification treatment, a primary polyphenylene sulfide is obtained. Then, the primary polyphenylene sulfide reacts with a chain extender at a high temperature to form a high molecular weight polyphenylene sulfide resin. The preparation method of the disclosure has the advantages of high yield, low cost, and is capable of selectively and controllably preparing polyphenylene sulfide resins with different melt viscosities and molecular weights, and the obtained polyphenylene sulfide resins have excellent heat resistance. The linear high molecular weight polyphenylene sulfide resin with high thermal stability obtained by the disclosure can be used for producing plates, pipes and rods, can be mechanically processed like metals, such as cutting, grinding, polishing, drilling, and can be used to produce fibers, membranes, films, and especially are applicable to automotive parts, electronic/electrical equipment, chemical and machinery industry.
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公开(公告)号：US20210252484A1
公开(公告)日：2021-08-19
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
IPC分类号： B01J23/44 , B01J31/18 , B01J31/02 , B01J37/02 , C07C29/157
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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公开(公告)号：US20210087133A1
公开(公告)日：2021-03-25
申请号：US16954774
申请日：2018-11-30
申请人： Zhejiang Nhu Company Ltd. , Zhejiang University , Shandong Nhu Amino Acid Co., Ltd. , Shandong Nhu Fine Chemical Science and Technology Company Ltd.
发明人： Zhirong CHEN , Jianyong MAO , Baishan HU , Guanbing LI , Haoran LI , Yu WANG , Yingkuo YANG , Qing LIU , Jiyu TANG , Weiyong CHEN
IPC分类号： C07C209/52 , C07C209/48 , B01J23/78 , B01J35/04
摘要： The present disclosure relates to a method for preparing isophorone diamine by means of a hydrogenation reduction of isophorone nitrile imine. The hydrogenation reduction is continuously carried out in a multi-stage bubble column reactor loaded with a supported alkaline cobalt-based catalyst, wherein isophorone nitrile imine is successively in countercurrent contact with hydrogen in each stage of the reactor to carry out a hydrogenation reduction reaction, so as to obtain the isophorone diamine. The preparation method solves the problem of back-mixing, and further improves the conversion rate and the cis/trans ratio of the product.
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6.发明申请公开(公告)号：US20190194704A1
公开(公告)日：2019-06-27
申请号：US16016813
申请日：2018-06-25
申请人： ZHEJIANG NHU COMPANY LTD. , ZHEJIANG UNIVERSITY , HEILONGJIANG NHU BIOTECHNOLOGY COMPANY LTD. , SHANGYU NHU BIOLOGICAL CHEMICAL CO., LTD.
发明人： Shenfeng YUAN , Hongwei YU , Zhaofeng CHEN , Yongqiang ZHU , Yi MIN , Yong LI , Baishan HU , Guisheng QIU , Kai YU
IPC分类号： C12P7/66
摘要： The present application relates to a method for fermentative production of oxidized coenzyme Q10 and high-content oxidized coenzyme Q10 prepared therefrom. For the method for fermentative production of oxidized coenzyme Q10, in a fermentation process of a production strain, the oxidation-reduction potential (ORP) of a fermentation broth is controlled to be −50 to 300 Mv, and preferably the oxidation-reduction potential (ORP) of the fermentation broth is controlled to be 50 to 200 mV. By controlling the ORP of the fermentation broth, the method for fermentative production of oxidized coenzyme Q10 enables the oxidized coenzyme Q10 content in the coenzyme Q10 produced by microorganisms to reach 96% or more, and the product is substantially composed of a single component, which makes post-treatment more convenient. Oxidized coenzyme Q10 is more stable than reduced coenzyme Q10, and as compared with the coenzyme Q10 obtained by fermentative production in the prior art, high-content oxidized coenzyme Q10 degrades in a less amount in organisms. In addition, the fermentation method of the present application has a high potency.
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