公开(公告)号：US06342623B1

公开(公告)日：2002-01-29

申请号：US09498788

申请日：2000-02-04

Applicant: Clarence D. Chang ,  Larry E. Hoglen ,  Zhaozhong Jiang ,  Rene B. LaPierre

Inventor： Clarence D. Chang ,  Larry E. Hoglen ,  Zhaozhong Jiang ,  Rene B. LaPierre

IPC: C07C6996

CPC classification number: C07C68/065 ,  C07C29/1285 ,  C07C31/202 ,  C07C69/96

Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of an amorphous aluminosilicate catalyst containing alkali metal, alkaline earth metal, or a combination thereof.

Abstract translation: 提供了一种通过在含有碱金属，碱土金属或其组合的无定形硅铝酸盐催化剂的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：US6114551A

公开(公告)日：2000-09-05

申请号：US412773

申请日：1999-10-04

Applicant: Doron Levin ,  Clarence D. Chang ,  Shifang Luo ,  Jose G. Santiesteban ,  James C. Vartuli

Inventor： Doron Levin ,  Clarence D. Chang ,  Shifang Luo ,  Jose G. Santiesteban ,  James C. Vartuli

IPC: B01J29/89 ,  C01B39/06 ,  C07D301/19 ,  C07D303/04 ,  C07D305/00

CPC classification number: C07D301/19 ,  B01J29/89 ,  B01J2229/16 ,  B01J2229/183 ,  B01J2229/32 ,  B01J29/7038

Abstract: A method of synthesizing an olefin epoxidation catalyst comprises the step of treating a porous crystalline aluminosilicate material having an X-ray diffraction pattern including d-spacing maxima at 12.4.+-.0.25, 6.9.+-.0.15, 3.57.+-.0.07 and 3.42.+-.0.07 Angstrom, such as MCM-22, with a dealuminating agent under conditions effective to remove framework aluminium from the material and produce a dealuminated product. The dealuminated product is then treated with a titanium-containing material under conditions effective to insert titanium into the dealuminated product and produce a titanium-containing, dealuminated catalyst composition.The resultant catalyst is useful in the epoxidation of olefins, such as propylene and cyclohexene, with hydrogen peroxide and organic hydroperoxides.

Abstract translation: 合成烯烃环氧化催化剂的方法包括以下步骤：处理多晶结晶硅铝酸盐材料，该多晶结晶硅铝酸盐材料具有包含d间距最大值的X射线衍射图，为12.4 +/- 0.25,6.9 +/- 0.15,3.57 +/- 0.07和3.42 +/- 0.07埃，例如MCM-22，在有效从材料中除去骨架铝并产生脱铝产品的条件下用脱铝剂。 然后在有效地将钛插入脱铝产品中并且生产含钛脱铝催化剂组合物的条件下，用含钛材料处理脱铝产品。 得到的催化剂可用于烯烃如丙烯和环己烯与过氧化氢和有机氢过氧化物的环氧化。

公开(公告)号：US6080904A

公开(公告)日：2000-06-27

申请号：US728395

申请日：1996-10-09

Applicant: Clarence D. Chang ,  Jose G. Santiesteban ,  David L. Stern

Inventor： Clarence D. Chang ,  Jose G. Santiesteban ,  David L. Stern

IPC: C07C5/27 ,  C07C5/13

CPC classification number: C07C5/2724 ,  C07C5/2791 ,  C07C2523/14 ,  C07C2523/42

Abstract: There is provided an isomerization process using 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. This catalyst is used to isomerize, for example, 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: 提供使用包含氢化/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的异构化方法。 该催化剂的实例是用钨酸盐和铂改性的氧化锆。 该催化剂用于异构化例如C 4至C 8链烷烃。 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：US6037513A

公开(公告)日：2000-03-14

申请号：US112546

申请日：1998-07-09

Applicant: Clarence D. Chang ,  Jane C. Cheng ,  Terry E. Helton ,  Michael A. Steckel ,  Scott A. Stevenson

Inventor： Clarence D. Chang ,  Jane C. Cheng ,  Terry E. Helton ,  Michael A. Steckel ,  Scott A. Stevenson

IPC: B01J29/72 ,  C07C2/74 ,  C07C5/03 ,  C07C1/00 ,  C07C2/64 ,  C07C2/68 ,  C07C5/10

CPC classification number: B01J29/7276 ,  B01J29/72 ,  B01J29/7476 ,  B01J29/7676 ,  C07C2/74 ,  C07C2101/14 ,  C07C2529/74 ,  C07C2529/76

Abstract: There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diffraction pattern including the following d-spacing maxima 12.4.+-.0.25, 6.9.+-.0.15, 3.57.+-.0.07 and 3.42.+-.0.07.

Abstract translation: 描述了用于芳族烃特别是苯的加氢烷基化的方法和催化剂，其中催化剂包含具有氢化活性的第一金属和具有包括以下d间距最大值12.4的X射线衍射图案的结晶无机氧化物材料 +/- 0.25，6.9 +/- 0.15,3.57 +/- 0.07和3.42 +/- 0.07。

公开(公告)号：US6008399A

公开(公告)日：1999-12-28

申请号：US266623

申请日：1999-03-11

Applicant: Clarence D. Chang ,  Jose G. Santiesteban

Inventor： Clarence D. Chang ,  Jose G. Santiesteban

IPC: C07C68/00

CPC classification number: C07C68/00

Abstract: A process for preparing organic carbonates, such as dimethyl carbonate, without the use of phosgene and with a high yield and selectivity to the desired carbonate, by reacting a formaldehyde-acetal with a source of oxygen, in the presence of a catalyst.

Abstract translation: 在催化剂存在下，通过使甲醛缩醛与氧源反应，制备有机碳酸酯如碳酸二甲酯的方法，而不使用光气，并且对所需碳酸酯具有高产率和选择性。

公开(公告)号：US5780382A

公开(公告)日：1998-07-14

申请号：US509717

申请日：1995-07-31

Applicant: Clarence D. Chang ,  Frank T. DiGuiseppi ,  Jose G. Santiesteban

Inventor： Clarence D. Chang ,  Frank T. DiGuiseppi ,  Jose G. Santiesteban

IPC: B01J21/06 ,  B01J23/24 ,  B01J23/28 ,  B01J23/30 ,  B01J23/38 ,  B01J23/42 ,  B01J23/652 ,  B01J32/00 ,  B01J37/02 ,  B01J37/08 ,  C01G25/02 ,  C01G41/00 ,  C07C5/27 ,  C07C9/12 ,  C07C9/16 ,  C10G67/04 ,  B01J23/16 ,  B01J23/22

CPC classification number: C07C5/2724 ,  B01J21/066 ,  B01J23/24 ,  B01J23/28 ,  B01J23/30 ,  B01J23/652 ,  B01J23/6527 ,  C01G25/02 ,  C01G41/00 ,  C07C5/2791 ,  C01P2002/54 ,  C10G2400/10

Abstract: There is provided a method for preparing an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this acidic solid is zirconia, modified with tungstate. This modified solid oxide may be used as a catalyst, for example, to isomerize C.sub.4 to C.sub.8 paraffins. The method for preparing this acidic solid involves contacting a hydrated oxide of a Group IVB metal under hydrothermal conditions, such as reflux conditions, prior to contact of the hydrated oxide with an aqueous solution comprising a source of an oxyanion of a Group VIB metal.

Abstract translation: 提供了一种制备酸性固体的方法，该酸性固体包含用VIB族金属的氧阴离子改性的ⅣB族金属氧化物。 这种酸性固体的一个例子是用钨酸盐改性的氧化锆。 该改性的固体氧化物可以用作催化剂，例如使C4至C8链烷烃异构化。 制备该酸性固体的方法包括在水合氧化物与包含VIB族金属的氧阴离子源的水溶液接触之前，在水热条件如回流条件下使IVB族金属的水合氧化物接触。

公开(公告)号：US5607888A

公开(公告)日：1997-03-04

申请号：US452939

申请日：1995-05-30

Applicant: Clarence D. Chang ,  Paul G. Rodewald

Inventor： Clarence D. Chang ,  Paul G. Rodewald

IPC: B01J29/40 ,  B01J29/44 ,  B01J31/02 ,  B01J31/12 ,  B01J35/02 ,  C07C1/20 ,  C07C2/12 ,  C07C2/66 ,  C07C5/27 ,  C07C5/41 ,  C07C6/12 ,  C07C45/54 ,  C10G45/64 ,  C10G50/00 ,  B01J29/06

CPC classification number: C10G50/00 ,  B01J29/40 ,  B01J29/44 ,  B01J31/0274 ,  B01J31/124 ,  B01J31/125 ,  C07C1/20 ,  C07C2/12 ,  C07C2/66 ,  C07C45/54 ,  C07C5/2708 ,  C07C5/41 ,  C07C6/123 ,  C07C6/126 ,  C10G45/64 ,  B01J2229/12 ,  B01J2229/42 ,  B01J35/023 ,  C07C2529/40 ,  Y02P20/52

Abstract: A process and catalyst for Shape Selective Hydrocarbon Conversions such as the regioselective disproportionation of toluene to para-xylene wherein hydrocarbon to be converted is passed over a catalytic molecular sieve which is trim selectivated with a reaction stream comprising toluene and a silicon-containing high efficiency p-xylene selectivating agent under toluene conversion conditions. The toluene disproportionation process attains a single-pass para-xylene product over 95% coupled with a toluene conversion of at least 15%. The present invention also includes the highly para-selective catalyst which results from the treatment of a catalytic molecular sieve with a high efficiency p-xylene selectivating agent under the recited conditions.

Abstract translation: 用于形状选择性烃转化的方法和催化剂，例如甲苯对对二甲苯的区域选择性歧化，其中待转化的烃将通过催化分子筛，催化分子筛用包含甲苯和含硅高效p的反应流选择 甲苯转化条件下的二甲苯选择剂。 甲苯歧化过程达到95％以上的单程对二甲苯产物，甲苯转化率至少为15％。 本发明还包括在所述条件下用高效对二甲苯选择性催化剂处理催化分子筛的高度对位选择性催化剂。

公开(公告)号：US5552128A

公开(公告)日：1996-09-03

申请号：US410156

申请日：1995-03-24

Applicant: Clarence D. Chang ,  Jose G. Santiesteban ,  David S. Shihabi ,  Scott A. Stevenson ,  James C. Vartuli

Inventor： Clarence D. Chang ,  Jose G. Santiesteban ,  David S. Shihabi ,  Scott A. Stevenson ,  James C. Vartuli

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/68 ,  B01J23/888 ,  B01J23/889 ,  C01B21/02 ,  B01D53/56

CPC classification number: B01D53/8628 ,  B01D53/9413 ,  B01J23/683 ,  B01J23/687 ,  B01J23/888 ,  B01J23/8892 ,  C01B21/02

Abstract: There is provided a catalytic method for converting nitrogen oxides to nitrogen (i.e., N.sub.2). The catalyst for this method comprises an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal and further comprising at least one metal selected from the group consisting of Group IB, Group IVA, Group VB, Group VIIB, Group VIII, and mixtures thereof. An example of this catalyst is zirconia, modified with tungstate, and iron. This method may be used for reducing emissions of nitrogen oxides from waste gases, including industrial exhaust gases and automobile exhaust gases. In a particular embodiment, nitrogen oxides in waste gases may be reacted with ammonia before the waste gases are discharged to the atmosphere.

Abstract translation: 提供了将氮氧化物转化为氮气（即N 2）的催化方法。 用于该方法的催化剂包括酸性固体组分，其包含用VIB族金属的氧阴离子改性的IVB族金属氧化物，并且还包含选自组IB，组IVA，组VB，组VIIB的至少一种金属， VIII族及其混合物。 该催化剂的实例是用钨酸盐和铁改性的氧化锆。 该方法可用于减少来自废气（包括工业废气和汽车废气）的氮氧化物的排放。 在一个具体实施方案中，废气中的氮氧化物可以在废气排放到大气中之前与氨反应。

公开(公告)号：US5541146A

公开(公告)日：1996-07-30

申请号：US285475

申请日：1994-08-03

Applicant: Clarence D. Chang ,  Cynthia T-W. Chu ,  Thomas F. Degnan ,  Paul G. Rodewald ,  David S. Shihabi

Inventor： Clarence D. Chang ,  Cynthia T-W. Chu ,  Thomas F. Degnan ,  Paul G. Rodewald ,  David S. Shihabi

IPC: B01J29/06 ,  B01J29/40 ,  B01J31/02 ,  B01J31/12 ,  C07C6/12

CPC classification number: B01J31/124 ,  B01J29/06 ,  B01J29/40 ,  B01J31/0274 ,  C07C6/123 ,  B01J2229/12 ,  B01J2229/32 ,  B01J2229/42 ,  Y02P20/52

Abstract: A catalytic molecular sieve which has been preselectivated by agglomerating with an organosilicon compound. The invention also includes a method for agglomeration-preselectivation and the shape selective catalyst which results from the agglomeration preselectivation.

Abstract translation: 已经通过与有机硅化合物凝聚而预先使用的催化分子筛。 本发明还包括聚集预选的方法和由聚集预选导致的形状选择性催化剂。

公开(公告)号：US5449847A

公开(公告)日：1995-09-12

申请号：US228772

申请日：1994-04-18

Applicant: Clarence D. Chang ,  Scott Han ,  John D. Lutner ,  Jose G. Santiesteban

Inventor： Clarence D. Chang ,  Scott Han ,  John D. Lutner ,  Jose G. Santiesteban

IPC: C07C2/74 ,  C07C5/10 ,  C07C13/00

CPC classification number: C07C2/74 ,  C07C2101/14 ,  C07C2521/06 ,  C07C2523/30 ,  C07C2523/42

Abstract: There is provided a process for preparing tercyclohexane by reacting benzene with hydrogen. The process involves the use of a catalyst comprising an acidic solid and a hydrogenation component. The acidic solid may comprise a Group IVB metal oxide, such as zirconia, modified with an oxyanion of a Group VIB metal, such as tungsten. The hydrogenation component may comprise platinum.

Abstract translation: 提供了一种通过使苯与氢反应制备三环己烷的方法。 该方法包括使用包含酸性固体和氢化组分的催化剂。 酸性固体可以包含用VIB族金属如钨的氧阴离子改性的IVB族金属氧化物，例如氧化锆。 氢化组分可以包含铂。