-
公开(公告)号：US06538162B2
公开(公告)日：2003-03-25
申请号：US09772775
申请日：2001-01-30
Applicant: Clarence D. Chang , Jose G. Santiesteban
Inventor： Clarence D. Chang , Jose G. Santiesteban
IPC: C07C4109
CPC classification number: C07C41/09 , C07C27/16 , C07C29/12 , C07C41/01 , C07C303/24 , C07C305/06 , C07C31/04 , C07C43/043 , C07C43/06 , C07C43/04
Abstract: The invention discloses a method for converting alkane to oxygenate which comprises the following steps: (i) contacting an alkane-containing gas with non-metal, regenerable, electrophile ions in a concentrated sulfuric acid medium under conditions sufficient to provide electrophilicly activated alkane and reduced electrophile ions; (ii) contacting said electrophilicly activated alkane with sulfate to form a sulfate ester; (iii) exposing the sulfate ester to hydrolyzing conditions sufficient to convert it to oxygenate; and (iv) collecting the oxygenate.
-
公开(公告)号：US06365767B1
公开(公告)日：2002-04-02
申请号：US09322880
申请日：1999-08-20
Applicant: Clarence D. Chang , Zhaozhong Jiang , Rene B. LaPierre , Suzanne E. Schramm , Hye Kyung Cho Timken
Inventor： Clarence D. Chang , Zhaozhong Jiang , Rene B. LaPierre , Suzanne E. Schramm , Hye Kyung Cho Timken
IPC: C07C6996
CPC classification number: C07C68/065 , C07C69/96
Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of a zeolite catalyst which contains alkali metal, alkaline earth metal, or a combination thereof present in excess of a stoichiometric amount.
Abstract translation: 提供了一种通过在含有超过化学计量的碱金属，碱土金属或其组合的沸石催化剂存在下使碳酸亚烷基酯与链烷醇反应来共同生产碳酸二烷基酯和链烷二醇的方法。
-
公开(公告)号：US06258962B1
公开(公告)日：2001-07-10
申请号：US09332725
申请日：1999-06-14
Applicant: J. Scott Buchanan , Clarence D. Chang , Robert A. Crane , Lorenzo C. DeCaul , Zhaozhong Jiang , Jose G. Santiesteban , Hye Kyung Cho Timken
Inventor： J. Scott Buchanan , Clarence D. Chang , Robert A. Crane , Lorenzo C. DeCaul , Zhaozhong Jiang , Jose G. Santiesteban , Hye Kyung Cho Timken
IPC: C07D32100
CPC classification number: C07D319/06 , C07D317/36
Abstract: A process for the synthesis of alkylene carbonates, such as ethylene carbonate, by reacting alkylene oxides with carbon dioxide in the presence of a porous solid support catalyst containing an alkali or alkaline earth metal component.
Abstract translation: 在含有碱金属或碱土金属组分的多孔固体载体催化剂存在下，通过使环氧烷与二氧化碳反应来合成碳酸亚烷基酯如碳酸亚乙酯的方法。
-
公开(公告)号：US06217747B1
公开(公告)日：2001-04-17
申请号：US08150304
申请日：1993-11-12
Applicant: Clarence D. Chang , Scott Han , Daniel J. Martenak , Jose G. Santiesteban , Dennis E. Walsh
Inventor： Clarence D. Chang , Scott Han , Daniel J. Martenak , Jose G. Santiesteban , Dennis E. Walsh
IPC: C10G4702
CPC classification number: B01J21/06 , B01J21/066 , B01J23/24 , B01J23/28 , B01J23/30 , B01J23/652 , B01J23/6527 , C01G25/02 , C01P2002/54 , C07C5/2724 , C07C5/2791 , C10G47/04 , C10G47/12 , C10G47/14 , C10G65/12 , C10G2400/10 , C07C9/00 , C07C9/16
Abstract: A process for hydrocracking heavy hydrocarbon feeds using a catalyst composition containing a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component including a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. The hydrocracking product has high isoparaffin to normal paraffin ratios and with minimal ethane and methane byproducts at high conversions. The hydrocracking step is useful in processes for producing high quality lubricating oil basestocks, along with naphtha and distillate products.
Abstract translation: 使用包含氢化/脱氢组分如贵金属的催化剂组合物和包含用VIB族金属的氧阴离子改性的IVB族金属氧化物的酸性固体组分加氢裂解重质烃进料的方法。 加氢裂化产物具有高异构链烷烃与正常链烷烃比，并且在高转化率下具有最小的乙烷和甲烷副产物。 加氢裂化步骤可用于生产高品质润滑油基础油料以及石脑油和馏出物产品的方法。
-
5.发明授权Method for separating methane from natural gas using bisglycoluril derivatives 有权使用双甘脲衍生物从天然气中分离甲烷的方法
公开(公告)号：US6106594A
公开(公告)日：2000-08-22
申请号：US235527
申请日：1999-01-22
Applicant: Clarence D. Chang , Suzanne Elaine Schramm , Clarence Edward Chase
Inventor： Clarence D. Chang , Suzanne Elaine Schramm , Clarence Edward Chase
CPC classification number: B01D53/1493 , B01D53/1487 , Y02C10/06
Abstract: The present invention provides a method for selectively recovering methane from a gas stream including carbon dioxide using a bisglycoluril derivative to selectively extract the methane.
Abstract translation: 本发明提供了一种使用双甘脲衍生物从包括二氧化碳的气流中选择性回收甲烷以选择性提取甲烷的方法。
-
Patent Agency Ranking
公开(公告)号：US5990365A
公开(公告)日：1999-11-23
申请号：US794176
申请日：1997-02-03
Applicant: Clarence D. Chang , Frank T. DiGuiseppi , Scott Han
Inventor： Clarence D. Chang , Frank T. DiGuiseppi , Scott Han
CPC classification number: C07C6/126 , B01J29/44 , B01J29/48 , B01J37/0201 , B01J2229/12 , B01J2229/26 , B01J2229/42 , C07C2523/36 , C07C2529/48
Abstract: There is provided a catalyst comprising ZSM-5, rhenium which is impregnated onto the catalyst, and a selectivating agent. The selectivating agent may be coke and/or a siliceous material. The catalyst is particularly useful for catalyzing toluene disproportionation reactions. Methods for making this catalyst and processes for using this catalyst in toluene disproportionation are also provided.
Abstract translation: 提供了一种催化剂，其包含浸渍在催化剂上的ZSM-5，铼和选择性试剂。 选择剂可以是焦炭和/或硅质材料。 催化剂特别适用于催化甲苯歧化反应。 还提供了制备该催化剂的方法和在甲苯歧化中使用该催化剂的方法。
-
7.发明授权Method of preparation of ex situ selectivated zeolite catalysts for enhanced shape selective applications and methods to increase the activity thereof 失效用于增强形状选择性应用的非原位选择性沸石催化剂的制备方法和增加其活性的方法
公开(公告)号：US5726114A
公开(公告)日：1998-03-10
申请号：US516435
申请日：1995-08-17
Applicant: Clarence D. Chang , John D. Lutner , Sharon B. McCullen , Paul G. Rodewald , David S. Shihabi
Inventor： Clarence D. Chang , John D. Lutner , Sharon B. McCullen , Paul G. Rodewald , David S. Shihabi
CPC classification number: C07C6/123 , B01J29/40 , B01J37/086 , B01J2229/12 , B01J2229/32 , B01J2229/42 , C07C2529/00
Abstract: A method of preparing a modified catalytic molecular sieve for enhanced shape selective hydrocarbon conversions in which a catalytic molecular sieve is modified by being exposed to at least one ex situ selectivation sequence, each sequence including an impregnation of the molecular sieve with a selectivating agent in an aqueous emulsion and a subsequent calcination of the impregnated molecular sieve. The selectivating agent compositions for the ex situ selectivation method are also described, including the selectivating agents, the surfactants, and the aqueous components. Also, a method for moderate steaming of the ex situ selectivated molecular sieve. Also a method for in situ trim-selectivating the ex situ selectivated catalytic molecular sieve. Also described is the modified catalytic molecular sieve modified by this method. Also described is a process for shape selective hydrocarbon conversion comprising contacting a hydrocarbon feedstream under conversion conditions with the modified catalytic molecular sieve.
Abstract translation: 一种制备用于增强形状选择性烃转化的改性催化分子筛的方法，其中催化分子筛通过暴露于至少一种非原位选择活性序列来修饰，每个序列包括用选择性试剂浸渍分子筛 水性乳液，随后煅烧浸渍的分子筛。 还描述了用于异位选择方法的选择性试剂组合物，包括选择性试剂，表面活性剂和水性组分。 另外，用于非原位选择性分子筛的中等蒸度的方法。 还有一种用于原位选择活化的催化分子筛的原位选择方法。 还描述了通过该方法改性的改性催化分子筛。 还描述了一种用于形状选择性烃转化的方法，其包括在转化条件下使烃进料流与改性的催化分子筛接触。
-
公开(公告)号：US5719097A
公开(公告)日：1998-02-17
申请号：US679238
申请日：1996-07-22
Applicant: Clarence D. Chang , Jose G. Santiesteban , David L. Stern
Inventor： Clarence D. Chang , Jose G. Santiesteban , David L. Stern
IPC: B01J21/06 , B01J23/24 , B01J23/28 , B01J23/30 , B01J23/652 , C01G25/02 , C07C5/27 , C10G67/04 , B01J23/00 , B01J23/40 , B01J23/42
CPC classification number: C07C5/2724 , B01J21/06 , B01J21/066 , B01J23/24 , B01J23/28 , B01J23/30 , B01J23/652 , B01J23/6527 , C01G25/02 , C07C5/2791 , C01P2002/54 , C10G2400/10
Abstract: There is provided a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this catalyst is zirconia, modified with tungstate and platinum. There is also provided a method for preparing this catalyst. This catalyst may be used, for example, to isomerize C.sub.4 to C.sub.8 paraffins. The feed to this paraffin isomerization reaction may, optionally, include cyclic hydrocarbons, such as benzene or cyclohexane, which may undergo ring opening reactions during the course of the isomerization reaction.
Abstract translation: 提供了包含氢化/脱氢组分如贵金属的催化剂和包含用VIB族金属的氧阴离子改性的IVB族金属氧化物的酸性固体组分。 该催化剂的实例是用钨酸盐和铂改性的氧化锆。 还提供了制备该催化剂的方法。 该催化剂可用于例如使C4至C8链烷烃异构化。 这种链烷烃异构化反应的进料可以任选地包括在异构化反应过程中可能经历开环反应的环烃，例如苯或环己烷。
-
公开(公告)号：US5563311A
公开(公告)日：1996-10-08
申请号：US365335
申请日：1994-12-28
Applicant: Clarence D. Chang , Jane C. Cheng , Scott Han , Jos e G. Santiesteban , Dennis E. Walsh
Inventor： Clarence D. Chang , Jane C. Cheng , Scott Han , Jos e G. Santiesteban , Dennis E. Walsh
CPC classification number: C07C6/126 , C07C2/66 , C07C2/864 , C07C2521/06 , C07C2523/30
Abstract: Relatively short chain alkyl aromatic compounds are prepared by alkylating or transalkylating an alkylatable aromatic compound with a relatively short chain alkylating or transalkylating agent under sufficient reaction conditions in the presence of catalyst comprising an acidic solid material which comprises a Group IVB metal oxide, such as zirconia, modified with an oxyanion of a Group VIB metal, such as tungsten.
Abstract translation: 在足够的反应条件下，在包含含有第IVB族金属氧化物如氧化锆的酸性固体材料的催化剂的存在下，可烷基化烷基化或烷基化烷基化芳族化合物来制备相对短链烷基芳族化合物 用VIB族金属氧化物如钨的氧阴离子改性。
-
公开(公告)号：US5563310A
公开(公告)日：1996-10-08
申请号：US433879
申请日：1995-05-02
Applicant: Clarence D. Chang , Frank T. DiGuiseppi , Scott Han
Inventor： Clarence D. Chang , Frank T. DiGuiseppi , Scott Han
CPC classification number: C07C2/864 , C07C2521/06 , C07C2523/30
Abstract: A process for the conversion of toluene to xylenes by alkylation with methanol over an acidic solid catalyst with a Group IVB metal oxide modified with an oxyanion of a Group VIB metal.
Abstract translation: 用甲醇通过酸性固体催化剂与用VIB族金属的氧阴离子改性的IVB族金属氧化物烷基化将甲苯转化为二甲苯的方法。
-
-
-
-
-
-
-
-
-
Search Results
206
records
(took 0.022 seconds)
