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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：US20220227915A1
公开(公告)日：2022-07-21
申请号：US17608393
申请日：2020-07-20
发明人： Jianfeng LI , Yonghua SHANG , Qian WU , Fulin ZHU , Peng WANG , Hao CHEN , Peimeng SHI , Weiqi HUA , Yuan LI
摘要： Preparation method for a polyurethane optical resin and applications thereof. The preparation method for the polyurethane optical resin comprises: a raw material composition comprising isocyanate and a polythiol compound undergoes a polymerization to produce the polyurethane optical resin. The turbidity value of the isocyanate used in the raw material composition is controlled at ≤2 NTU. The polyurethane optical resin produced is applicable in manufacturing optical products.
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公开(公告)号：US20160068472A1
公开(公告)日：2016-03-10
申请号：US14761890
申请日：2013-11-22
发明人： Xin LI , Hao CHEN , Congying ZHANG , Shan GAO , Zhenguo LIU , Weijia WANG , Lei TANG , Zhipeng LIU , Yuan LI , Qingmei JIANG , Jinhong SONG , Weiqi HUA , Hao DING
IPC分类号： C07C209/72
CPC分类号： C07C209/72 , B01J23/96 , B01J38/08 , C07C2601/14 , Y02P20/584 , C07C211/36
摘要： Disclosed is a method for preparing diamino-dicyclohexyl methane (H12MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4′-MDA used as the starting material is firstly hydrogenated to prepare 4,4′-H12MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4′-MDA to the mixture of 2,4′-MDA and 4,4′-MDA, and then when the conversion is stabilized, the feed is switched to 4,4′-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4′-MDA and 4,4′-MDA. 4,4′-H12MDA having the trans-trans isomer content of 16˜24 wt % is produced, and the mixture of 2,4′-H12MDA and 4,4′-H12MDA is also produced, wherein the content of 2,4′-H12MDA in the mixture is 4˜15 wt %.
摘要翻译： 公开了通过二氨基二苯基甲烷（MDA）的氢化制备二氨基二环己基甲烷（H12MDA）的方法。 在此过程中，首先氢化4,4'-MDA作为原料，制备4,4'-H12MDA。 当催化剂的活性降低时，进料从4,4'-MDA转变为2,4'-MDA和4,4'-MDA的混合物，然后当转化稳定时，进料被切换 至4,4'-MDA。 通过将进料转化为2,4'-MDA和4,4'-MDA的混合物，使活化的催化剂在线活化。 制备反式异构体含量为16〜24重量％的4,4'-H12MDA，并且还生产2,4'-H12MDA和4,4'-H12MDA的混合物，其中2,4 混合物中的-H12MDA为4〜15重量％。
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公开(公告)号：US20220024863A1
公开(公告)日：2022-01-27
申请号：US17295806
申请日：2018-12-26
发明人： Weiqi HUA , Tonghe LI , Yonghua SHANG , Shuchang SUN , Jingxu WANG , Jinping HAN , Qiang LI , Wenbin LI , Jing LI , Pengfei WANG , Yuan LI
IPC分类号： C07C263/10
摘要： A method for preparing an isocyanate in a gaseous phase by feeding, in the presence or absence of an inert gas, an amine-containing gas stream and a phosgene-containing gas stream into a reaction region, allowing the amine and the phosgene to contact in gaseous forms and undergo a phosgenation reaction in the reaction region, thus preparing the target isocyanate in a gaseous form in the reaction region. The phosgene-containing stream is subjected to preheating and warming before being fed into the reaction region, and the phosgene-containing stream comprises a substance A at a mass fraction of
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公开(公告)号：US20180282593A1
公开(公告)日：2018-10-04
申请号：US15571358
申请日：2015-07-01
发明人： Wangshun QI , Zuolong LIU , Song TU , Bo WANG , Xianbo LIU , Deqiang MA , Bo XIN , Cheng GONG , Weiqi HUA
IPC分类号： C09J11/06 , C08J3/03 , C08G18/73 , C08G18/42 , C08G18/48 , C08G18/76 , C08G18/75 , C08G18/62 , C09J9/00 , C09J175/08 , C09J175/06
CPC分类号： C09J11/06 , C08G18/10 , C08G18/283 , C08G18/4202 , C08G18/4238 , C08G18/4277 , C08G18/48 , C08G18/4833 , C08G18/4854 , C08G18/4891 , C08G18/6204 , C08G18/69 , C08G18/722 , C08G18/73 , C08G18/755 , C08G18/758 , C08G18/7621 , C08G18/7664 , C08G18/8064 , C08G2170/80 , C08J3/03 , C08J2375/06 , C08J2375/08 , C09J9/00 , C09J175/06 , C09J175/08 , C08G18/64
摘要： Provided are an emulsifiable isocyanate composition and a preparation method therefor. The emulsifiable isocyanate composition comprises the following components: (a) a polymethylene polyphenyl polyisocyanate, (b) an emulsifier, (c) an adduct derived from a diisocyanate, and optionally (d) a terpene monomer. The emulsifiable isocyanate composition is used in artificial board adhesives, and has a smaller mold cumulative effect, an improved demoulding performance and an extended pot life.
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6.发明申请公开(公告)号：US20200009544A1
公开(公告)日：2020-01-09
申请号：US16489599
申请日：2017-03-27
发明人： Jianglin HU , Yunhai LIU , Yuan LI , Qingmei JIANG , Yanfang SONG , Yang YANG , Changsheng CHEN , Ke DING , Wei ZENG , Hengdong YANG , Kun WANG , Weiqi HUA
IPC分类号： B01J31/06 , C07C29/132 , B01J23/46 , B01J23/42 , B01J23/44 , B01J23/52 , B01J23/36 , B01J23/28 , B01J23/30 , B01J23/34 , B01J23/22 , B01J23/20 , B01J23/14
摘要： The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.
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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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