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公开(公告)号：US07544831B2
公开(公告)日：2009-06-09
申请号：US11859001
申请日：2007-09-21
CPC分类号： C07C67/08 , C07C69/157
摘要： The present invention provides a green catalytic process for the synthesis of acetyl salicylic acid using solid acid catalysts at atmospheric pressure. The invention involve the solid acid catalyst such as sulfated transition metal oxides namely nano-crystalline sulfated zirconia, sulfated titania; modified zeolites namely zeolite H-beta, H-Y, H-ZSM-5 and K-10 montmorillonite clay in a solvent free environment using salicylic acid and acetic anhydride with yield about 95% and high selectivity (100%). The solid acid catalysts can be recovered, regenerated and reused.
摘要翻译： 本发明提供了在大气压下使用固体酸催化剂合成乙酰基水杨酸的绿色催化方法。 本发明涉及固体酸催化剂，例如硫酸化过渡金属氧化物，即纳米结晶硫酸氧化锆，硫酸化二氧化钛; 改性沸石，即沸石H-β，H-Y，H-ZSM-5和K-10蒙脱土粘土，在无溶剂环境中使用水杨酸和乙酸酐，产率约95％，高选择性（100％）。 固体酸催化剂可以回收，再生和再利用。
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公开(公告)号：US20090082592A1
公开(公告)日：2009-03-26
申请号：US11859001
申请日：2007-09-21
IPC分类号： C07C51/347
CPC分类号： C07C67/08 , C07C69/157
摘要： The present invention provides a green catalytic process for the synthesis of acetyl salicylic acid using solid acid catalysts at atmospheric pressure. The invention involve the solid acid catalyst such as sulfated transition metal oxides namely nano-crystalline sulfated zirconia, sulfated titania; modified zeolites namely zeolite H-beta, H—Y, H-ZSM-5 and K-10 montmorillonite clay in a solvent free environment using salicylic acid and acetic anhydride with yield about 95% and high selectivity (100%). The solid acid catalysts can be recovered, regenerated and reused.
摘要翻译： 本发明提供了在大气压下使用固体酸催化剂合成乙酰基水杨酸的绿色催化方法。 本发明涉及固体酸催化剂，例如硫酸化过渡金属氧化物，即纳米结晶硫酸氧化锆，硫酸化二氧化钛; 改性沸石，即沸石H-β，H-Y，H-ZSM-5和K-10蒙脱土粘土，在无溶剂环境中使用水杨酸和乙酸酐，产率约95％，高选择性（100％）。 固体酸催化剂可以回收，再生和再利用。
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3.发明授权Process for the preparation of a molecular sieve adsorbent for the adsorptive dehydration of alcohols 有权用于制备用于醇的吸附脱水的分子筛吸附剂的方法公开(公告)号：US07407906B2
公开(公告)日：2008-08-05
申请号：US11297523
申请日：2005-12-08
CPC分类号： B01J20/186
摘要： This invention relates to the use of pore mouth control of microporous solids for developing novel molecular sieve adsorbents and their potential in the drying of alcohols. More specifically, the invention relates to the manufacture and use of a molecular sieve adsorbent, which selectively adsorbs water from azeotropic alcohol-water mixtures by pore mouth control of microporous solids with liquid phase metal alkoxide deposition on the external surface at ambient conditions of temperature and pressure. The prepared adsorbent is therefore useful for the commercial drying of alcohols.
摘要翻译： 本发明涉及微孔固体的孔口控制用于开发新的分子筛吸附剂及其在醇的干燥中的潜力。 更具体地，本发明涉及分子筛吸附剂的制造和使用，其通过在环境温度条件下在外表面上的液相金属醇盐沉积孔微孔固体的孔口控制来选择性地吸附共沸醇 - 水混合物中的水，以及 压力。 因此，制备的吸附剂可用于醇的商业干燥。
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公开(公告)号：US07108839B2
公开(公告)日：2006-09-19
申请号：US10308170
申请日：2002-12-03
申请人： Arvindkumar Balvantrai Boricha , Hari Chand Bajaj , Raksh Vir Jasra , Pradyut Ghosh , Pushipito Kumar Ghosh
发明人： Arvindkumar Balvantrai Boricha , Hari Chand Bajaj , Raksh Vir Jasra , Pradyut Ghosh , Pushipito Kumar Ghosh
IPC分类号： C01G55/00
CPC分类号： C22B3/44 , C22B11/048 , Y02P10/214 , Y02P10/234
摘要： The present invention provides a provides a process for the recovery of precious metals from spent catalysts or adsorbent or inorganic waste, more specifically the process relates to recovery of Pd from silica, which is used as an adsorbent in column chromatography or as a catalyst support in many catalysts.
摘要翻译： 本发明提供了一种从废催化剂或吸附剂或无机废物中回收贵金属的方法，更具体地说，该方法涉及从二氧化硅中回收Pd，其用作柱色谱法中的吸附剂或作为催化剂载体 许多催化剂。
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5.发明申请Catalytic epoxidation of styrene with molecular oxygen using metal ion exchanged zeolites 有权使用金属离子交换的沸石用分子氧催化苯乙烯的环氧化公开(公告)号：US20070149791A1
公开(公告)日：2007-06-28
申请号：US11375697
申请日：2006-03-14
申请人： Raksh Vir Jasra , Jince Sebastian
发明人： Raksh Vir Jasra , Jince Sebastian
IPC分类号： C07D301/06
CPC分类号： B01J29/072 , B01J29/143 , C07D301/06
摘要： This invention provides a catalytic epoxidation of styrene to styrene oxide with molecular oxygen using cobalt containing zeolite. Catalytic epoxidation of styrene-to-styrene epoxide was carried out using molecular oxygen in presence of Co2+ exchanged zeolites. Molecular oxygen from air is also useful for the epoxidation reaction at atmospheric pressure. The presence of adsorbed water molecules in the catalyst also increases the styrene conversion without affecting the styrene oxide selectivity. Various alkali and alkaline earth cationic promoters were introduced into the zeolite catalyst to increase the styrene oxide selectivity. The present invention explore the effect of adsorbed water molecules and alkali and alkaline earth metal cationic promoters in the cobalt exchanged zeolite catalyst, on the styrene conversion and styrene oxide selectivity for the catalytic epoxidation of styrene to styrene oxide with molecular oxygen.
摘要翻译： 本发明提供使用含钴沸石的苯乙烯与分子氧的氧化苯乙烯的催化环氧化。 苯乙烯 - 苯乙烯环氧化物的催化环氧化是在分子氧存在下进行的。 来自空气的分子氧也可用于在大气压下的环氧化反应。 催化剂中吸附水分子的存在也增加了苯乙烯转化率，而不影响氧化苯乙烯的选择性。 将各种碱金属和碱土金属阳离子促进剂引入到沸石催化剂中以增加氧化苯乙烯的选择性。 本发明探讨了吸附水分子和碱金属和碱土金属阳离子助催化剂在钴交换沸石催化剂中对苯乙烯转化率和苯乙烯氧化物选择性对苯乙烯与分子氧催化氧化苯乙烯氧化物的影响。
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公开(公告)号：US08252261B2
公开(公告)日：2012-08-28
申请号：US12112551
申请日：2008-04-30
申请人： Raksh Vir Jasra , Haresh Mahipatlal Mody , Rajesh Shantilal Somani , Hari Chand Bajaj , Dipak Balwantrai Shukla , Niraj Rameshchandra Vyas
发明人： Raksh Vir Jasra , Haresh Mahipatlal Mody , Rajesh Shantilal Somani , Hari Chand Bajaj , Dipak Balwantrai Shukla , Niraj Rameshchandra Vyas
IPC分类号： C01B33/12
CPC分类号： C01B33/193
摘要： The present invention provides a process for the preparation of finely divided precipitated silica. Finely divided precipitated silica is prepared by neutralization of alkali silicate solution, under continuous stirring, at 60° to 90° C. in presence of alkali metal salt as coagulating agent, in various neutralization steps during which neutralization is interrupted for specific time. Further acidic silica sol, is added until 60 to 80% of total alkali is neutralized. The reaction mixture is then aged at least for 3 minute under continuous agitation, followed by circulation through centrifugal pump at an appropriate rate.
摘要翻译： 本发明提供了制备细碎沉淀二氧化硅的方法。 在连续搅拌下，在碱金属盐作为凝结剂的存在下，在碱性硅酸盐溶液中，在碱金属盐作为凝结剂的存在下，通过中和碱性硅酸盐溶液，在各种中和步骤中中和特定时间来制备精细分离的沉淀二氧化硅。 加入其它酸性二氧化硅溶胶，直到总碱的60〜80％被中和。 然后将反应混合物在连续搅拌下至少老化3分钟，然后以适当的速率循环通过离心泵。
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7.发明授权Catalytic epoxidation of styrene with molecular oxygen using metal ion exchanged zeolites 有权使用金属离子交换的沸石用分子氧催化苯乙烯的环氧化公开(公告)号：US07345182B2
公开(公告)日：2008-03-18
申请号：US11375697
申请日：2006-03-14
申请人： Raksh Vir Jasra , Jince Sebastian
发明人： Raksh Vir Jasra , Jince Sebastian
IPC分类号： C07D301/03
CPC分类号： B01J29/072 , B01J29/143 , C07D301/06
摘要： This invention provides a catalytic epoxidation of styrene to styrene oxide with molecular oxygen using cobalt containing zeolite. Catalytic epoxidation of styrene-to-styrene epoxide was carried out using molecular oxygen in presence of Co2+ exchanged zeolites. Molecular oxygen from air is also useful for the epoxidation reaction at atmospheric pressure. The presence of adsorbed water molecules in the catalyst also increases the styrene conversion without affecting the styrene oxide selectivity. Various alkali and alkaline earth cationic promoters were introduced into the zeolite catalyst to increase the styrene oxide selectivity. The present invention explore the effect of adsorbed water molecules and alkali and alkaline earth metal cationic promoters in the cobalt exchanged zeolite catalyst, on the styrene conversion and styrene oxide selectivity for the catalytic epoxidation of styrene to styrene oxide with molecular oxygen.
摘要翻译： 本发明提供使用含钴沸石的苯乙烯与分子氧的氧化苯乙烯的催化环氧化。 苯乙烯 - 苯乙烯环氧化物的催化环氧化是在分子氧存在下进行的。 来自空气的分子氧也可用于在大气压下的环氧化反应。 催化剂中吸附水分子的存在也增加了苯乙烯转化率，而不影响氧化苯乙烯的选择性。 将各种碱金属和碱土金属阳离子促进剂引入到沸石催化剂中以增加氧化苯乙烯的选择性。 本发明探讨了吸附水分子和碱金属和碱土金属阳离子助催化剂在钴交换沸石催化剂中对苯乙烯转化率和苯乙烯氧化物选择性对苯乙烯与分子氧催化氧化苯乙烯氧化物的影响。
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8.发明授权Process for the preparation of molecular sieve adsorbent for selective adsorption of oxygen from air 有权制备用于从空气中选择性吸附氧气的分子筛吸附剂的方法公开(公告)号：US07319082B2
公开(公告)日：2008-01-15
申请号：US10693643
申请日：2003-10-27
CPC分类号： B01J29/087 , B01J20/186 , B01J37/06
摘要： The invention relates to the manufacture of molecular sieve adsorbents, which are selective towards oxygen from its gaseous mixture with argon and/or nitrogen. More particularly, this invention relates to the manufacture of molecular sieve adsorbents useful for the separation of oxygen-argon gaseous mixture. More specifically, the invention relates to the manufacture and use of a molecular sieve adsorbent by cation exchange in zeolites by rare earth cations to obtain oxygen selective adsorbent from its gaseous mixture with nitrogen and argon at ambient conditions of temperature and pressure. Thus prepared adsorbent is useful for the separation and purification of nitrogen and argon from its mixture with oxygen.
摘要翻译： 本发明涉及分子筛吸附剂的制造，其分子筛吸附剂是从氩气和/或氮气的气态混合物中对氧气有选择性的。 更具体地说，本发明涉及可用于分离氧 - 氩气体混合物的分子筛吸附剂的制造。 更具体地，本发明涉及通过稀土阳离子在沸石中通过阳离子交换制造和使用分子筛吸附剂，以在温度和压力的环境条件下从其与氮气和氩气的气态混合物中获得氧选择性吸附剂。 如此制备的吸附剂可用于从其与氧气的混合物中分离和纯化氮气和氩气。
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公开(公告)号：US07132582B2
公开(公告)日：2006-11-07
申请号：US10448457
申请日：2003-05-30
CPC分类号： B01J21/066 , B01J37/036 , B01J37/20 , C07C5/31 , C07C2521/06 , C07C13/28
摘要： The present invention relates to a catalytic process for preparation of isolongifolene using nanocrystalline solid super acid. This process is an eco-friendly, single step, solvent free catalytic process for the preparation of a tricyclic sesqui-terpene hydrocarbon, isolongifolene. More particularly, the present invention provides a process for the catalytic isomerisation of longifolene to iso-longifolene using nano-crystalline sulfated zirconia as a solid super acid catalyst.
摘要翻译： 本发明涉及使用纳米结晶固体超强酸制备异龙蕊烯的催化方法。 该方法是一种环保，单步，无溶剂的催化方法，用于制备三环倍半萜烃，异环戊烯。 更具体地说，本发明提供了使用纳米结晶硫酸化氧化锆作为固体超酸催化剂将长叶烯催化异构化为异龙蒿烯的方法。
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公开(公告)号：US07087791B2
公开(公告)日：2006-08-08
申请号：US10678902
申请日：2003-10-02
IPC分类号： C07C45/00
CPC分类号： C07C45/46 , B01J21/16 , B01J29/085 , B01J29/18 , B01J29/7057 , B01J29/90 , Y02P20/584 , C07C49/76
摘要： An ecofriendly process for acylation of an alkylated benzene derivative has increased selectively towards para position and comprises a step of reacting the alkylated benzene derivative with an acylating agent in the presence of nitrobenzene, dichlorobenze, dimethylsulfolane, and/or benzotrile, and a crystalline alumino silicate catalyst having general formula M2/nO.Al2O3.xSiO2.wH2O, wherein M is an alkali cation, a rare earth cation, and/or a proton, wherein the Si/Al ratio is in the range of 5.5 to 20, wherein the step of reacting is performed at temperature between 80° to 140° C. for 5 to 25 hours. In a further step, the solid catalyst is separated from the reaction mixture of step, and in yet another step, the acylated alkyl benzene derivative is separated from the mixture.
摘要翻译： 烷基化苯衍生物酰化的环保方法选择性地向对位增加，并且包括在硝基苯，二氯苯，二甲基环丁砜和/或苯并吡喃存在下使烷基化苯衍生物与酰化剂反应的步骤，以及结晶铝硅酸盐 具有通式M 2 / n O的催化剂。Al 2 O 3·xSiO 2·w < 2 O，其中M是碱性阳离子，稀土阳离子和/或质子，其中Si / Al比在5.5至20的范围内，其中反应步骤在 80°至140℃，持续5至25小时。 在另一步骤中，将固体催化剂与步骤的反应混合物分离，在另一步骤中，将酰化烷基苯衍生物与混合物分离。
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