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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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3.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：US20230035875A1
公开(公告)日：2023-02-02
申请号：US17778276
申请日：2020-12-11
发明人： Zhirong CHEN , Wenbin WU , Guiyang ZHOU , Ming FENG , Xingxing SHI , Tao MA , Zhichao FENG , Xiongwei ZHANG , Qing SUN , Yong XU
IPC分类号： C07C253/10
摘要： Provided are a method and device for preparing adiponitrile. The method of the present disclosure comprises the steps of a first hydrocyanation reaction, an isomerization reaction and a second hydrocyanation reaction, wherein online Raman spectroscopy is used for detecting the content of a specific component in the system; and the reaction conditions are regulated based on the detection results, so as to achieve precise control of the materials in each step of the reaction system. The method of the present disclosure can reduce an amount of butadiene, thereby reducing the subsequent energy consumption needed for recycling butadiene and equipment investment after reaction; by monitoring the content of hydrocyanic acid in real time, the residue of hydrocyanic acid is reduced to a lower level, and the operation safety and the stability of a catalyst during reaction are improved; and the loss of the catalyst is reduced.
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