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1.发明申请CATALYST FOR PREPARING PHOSGENE AND METHOD FOR PREPARING PHOSGENE USING THE SAME 有权用于制备荧光体的催化剂和使用其制备荧光体的方法公开(公告)号：US20160137511A1
公开(公告)日：2016-05-19
申请号：US14904138
申请日：2014-02-11
发明人： Bin CHEN , Wuxi LUO , Yu YAO , Liangfeng SHAO , Lei WANG , Hongke ZHANG , Weiqi HUA
CPC分类号： C01B31/28 , B01J21/18 , B01J23/04 , B01J27/10 , B01J27/224 , B01J31/06 , B01J35/0006 , B01J35/023 , B01J35/04 , B01J37/0219 , B01J37/0236 , B01J37/08 , B01J37/084 , B01J37/24 , C01B32/80
摘要： The present invention relates to a catalyst for preparing phosgene and a method for preparing phosgene using the catalyst. Said method comprises: modifying the surface of an activated carbon coating/foamed silicon carbide structural catalyst using an alkali metal salt; filling the catalysts having different thickness of the activated carbon coating and different amount of the alkali metal salt in different sections in the axial direction of the multi-tubular reactor of the fixed bed, and preparing phosgene using Cl2 and CO. The radial and axial temperature difference of the catalyst bed is lowered by using the alkali metal salt-modified activated carbon coating/foamed silicon carbide structural catalyst and by segmental filling, so that high temperature of tube wall is obtained in the case of a larger tube diameter, and high quality of steam is obtained stably.
摘要翻译： 本发明涉及一种用于制备光气的催化剂和一种使用该催化剂制备光气的方法。 所述方法包括：使用碱金属盐改性活性炭涂层/泡沫碳化硅结构催化剂的表面; 在固定床的多管式反应器的轴向不同部分中填充不同厚度的活性炭涂层和不同量的碱金属盐的催化剂，并使用Cl2和CO制备光气，径向和轴向温度 通过使用碱金属盐改性的活性炭涂层/发泡碳化硅结构催化剂和通过分段填充来降低催化剂床的差异，使得在管径较大的情况下获得管壁的高温，并且质量高 的蒸汽得到稳定。
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公开(公告)号：US20220305479A1
公开(公告)日：2022-09-29
申请号：US17291250
申请日：2020-01-14
发明人： Lei WANG , Tongji WANG , Fei YE , Kang SUN , Naibo CHU , Qiankun JIAO , Yuan LI
摘要： Provided are a preparation method for a propylene epoxidation catalyst, and a use thereof. During the preparation, an alkoxide solution of a prepared active component and a silica gel support are mixed, then a rotary evaporation treatment is performed on the mixture to remove a low-carbon alcohol to obtain a catalyst precursor, and then the obtained catalyst precursor is subjected to calcination and silylation treatments to obtain the propylene epoxidation catalyst. The catalyst is prepared in a simple process, can be applied to the chemical process of preparing propylene oxide by propylene epoxidation, has high average selectivity to propylene oxide, and has industrial application prospect.
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公开(公告)号：US20200147599A1
公开(公告)日：2020-05-14
申请号：US16484574
申请日：2018-05-24
发明人： Lei WANG , Tongji WANG , Fei YE , Lichao YANG , Guangquan YI , Jiaoying CUI , Naibo CHU , Yuan LI , Weiqi HUA
IPC分类号： B01J37/02 , C07D301/19 , B01J37/08 , B01J21/06 , B01J21/08 , C07D303/04
摘要： Disclosed in the present invention are a preparation method for an olefin epoxidation catalyst and applications thereof. The method comprises: loading an auxiliary metal salt onto a silica gel carrier, and carrying out a drying treatment to the silica gel carrier; loading a titanium salt (preferably TiCl4) onto the silica gel carrier by a chemical vapor deposition method; calcining to obtain a silica gel on which the auxiliary metal oxide and Ti species are loaded; obtaining an catalyst precursor (Ti-MeO—SiO2 composite oxide) by water vapor washing; loading alkyl silicate (preferably tetraethyl orthosilicate) onto the surface of the catalyst precursor by a chemical vapor deposition method and calcining the catalyst precursor to obtain a Ti-MeO—SiO2 composite oxide with the surface coated with a SiO2 layer; and carrying out a silylanization treatment to obtain the catalyst. The catalyst can be applied to a chemical process of propylene epoxidation to prepare propylene oxide, and has an average selectivity to PO up to 96.7%, the method of the present invention and the applications thereof have industrial application prospects.
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