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公开(公告)号：US20210403333A1
公开(公告)日：2021-12-30
申请号：US17294356
申请日：2018-11-15
发明人： Danhua YUAN , Jiacheng XING , Yunpeng XU , Zhongmin LIU
摘要： The present application discloses a method for preparing hierarchical porous titanium-silicon TS-1 molecular sieve, wherein a titanate polyester polyol is used as titanium source. In the method, titanium is connected to a polymer, which makes titanium more difficult to hydrolyze, prevent the TiO2 precipitation and reduce the formation of non-framework titanium. In addition that such new type of the titanate polyester polyol acts as the titanium source during the synthesis process, the titanate polyester polyol can also be used as mesoporous template. Therefore, the TS-1 molecular sieve obtained by this method has mesoporous structure, which plays an important role in promoting the application of TS-1 molecular sieve in the field of catalysis.
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公开(公告)号：US20230338935A1
公开(公告)日：2023-10-26
申请号：US18025660
申请日：2020-09-11
发明人： Jiacheng XING , Liping YANG , Danhua YUAN , Yunpeng XU , Zhongmin LIU
CPC分类号： B01J31/1691 , B01J35/1019 , B01J35/1023 , B01J35/1028 , B01J35/026 , B01J35/1057 , B01J37/04 , B01J37/031 , C07D301/19 , C07F7/28 , B01J2531/46 , B01J2531/004 , B01J2231/72
摘要： A metal-organic framework (MOF) MIL-125 and a preparation method and a use thereof are provided. The MOF MIL-125 is a round cake-like crystal and has an external specific surface area (SSA) of 160 m2/g to 220 m2/g. The MOF MIL-125 provided in the present application has a large number of microporous structures, a large external SSA, and a high catalytic activity in oxidation.
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公开(公告)号：US20220008902A1
公开(公告)日：2022-01-13
申请号：US17294357
申请日：2018-11-15
发明人： Danhua YUAN , Jiacheng XING , Yunpeng XU , Zhongmin LIU
摘要： The present application discloses a method for preparing a hierarchical porous TS-1 molecular sieve, which uses a silicon-titanium ester polymer as both titanium source and silicon source. In the method, silicon and titanium are uniformly connected to a same polymer, and the hydrolysis rates thereof are equivalent during hydrolysis, which can prevent TiO2 precipitation and reduce the generation of non-framework titanium. Further, the silicon-titanium ester polymer is not only used as both silicon source and titanium source, but also can be used as mesoporous template in the synthesis process. The obtained TS-1 molecular sieve has mesoporous structure with narrow pore size distribution, which plays an important role in promoting the application of TS-1 molecular sieve in the field of catalysis.
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公开(公告)号：US20210403332A1
公开(公告)日：2021-12-30
申请号：US17294349
申请日：2018-11-15
发明人： Danhua YUAN , Jiacheng XING , Yunpeng XU , Zhongmin LIU
IPC分类号： C01B37/00
摘要： The present application discloses a method for preparing a hierarchical porous TS-1 molecular sieve comprising using a silicon-titanium ester polymer as both titanium source and silicon source. In the method, silicon and titanium are uniformly connected to a same polymer, and the hydrolysis rates thereof are equivalent during hydrolysis, which can prevent TiO2 precipitation and reduce the generation of non-framework titanium. Further, the silicon-titanium ester polymer is not only used as both silicon source and titanium source, but also can be used as a mesoporous template in the synthesis process. The obtained TS-1 molecular sieve has mesoporous structure with narrow pore size distribution.
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公开(公告)号：US20230331578A1
公开(公告)日：2023-10-19
申请号：US18026828
申请日：2020-09-17
发明人： Jiacheng XING , Danhua YUAN , Yunpeng XU , Zhongmin LIU
CPC分类号： C01G23/04 , C01F7/30 , C01P2006/16 , C01P2006/12
摘要： A preparation method of a porous oxide is provided, which includes: preparing the porous oxide with a polyester polyol as a raw material. The porous oxide prepared by the preparation method in the present application has characteristics such as uniform and adjustable pore sizes and controllable distribution of mesopores, micropores, and macropores.
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6.发明申请公开(公告)号：US20220002496A1
公开(公告)日：2022-01-06
申请号：US17293900
申请日：2018-11-15
发明人： Jiacheng XING , Danhua YUAN , Yunpeng XU , Zhongmin LIU
摘要： This application discloses a polymer ultraviolet absorbent and preparation method and application thereof. The synthesis process of the polymer ultraviolet absorbent does not require additional organic solvents, and the reaction by-product is high-purity ethanol, which is relatively economical. green, efficient and environmentally friendly. The polymer ultraviolet absorbent has good water solubility, is convenient to use, safe and non-toxic, and has excellent ultraviolet absorption effect.
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公开(公告)号：US20220002481A1
公开(公告)日：2022-01-06
申请号：US17293899
申请日：2018-11-15
发明人： Danhua YUAN , Jiacheng XING , Yunpeng XU , Zhongmin LIU
IPC分类号： C08G63/698 , C08G63/85 , C08G63/84 , C08G63/87 , C08G63/86 , C08G63/83 , C08G63/68 , C08G63/695 , C08G63/692
摘要： The present application discloses a method for preparing polyester polyol comprising performing transesterification of raw materials containing inorganic oxyacid ester and polyhydric alcohol to obtain the polyester polyol. The polyester polyol obtained by the method described in the present application has higher heat resistance.
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