-
公开(公告)号:AT171258T
公开(公告)日:1998-10-15
申请号:AT92902114
申请日:1991-11-26
Applicant: CATALYTICA INC , TANAKA PRECIOUS METAL IND
Inventor: TSURUMI KAZUNORI , EZAWA NOBUYASU , SCHLATTER JAMES C , NICKOLAS SARENTO G , DALLA BETTA RALPH A
-
公开(公告)号:DE69125384T2
公开(公告)日:1997-11-06
申请号:DE69125384
申请日:1991-09-25
Applicant: CATALYTICA INC N D GES D STAAT
Inventor: COOPER MICHAEL , KING DAVID , SANDERSON WILLIAM
IPC: B01J21/04 , B01J27/08 , B01J27/128 , B01J27/135 , B01J27/32 , B01J29/90 , B01J38/12 , B01J38/48 , B01J38/50 , C07B61/00 , C07C2/60 , C07C9/16 , C10G35/06 , B01J27/24 , B01J27/186 , B01J27/187 , C07C2/58 , B01J27/199 , B01J21/02 , B01J27/12 , B01J27/125
Abstract: This invention is a process for the alkylation of isoparaffin with olefins using a catalyst system comprising certain transition aluminas promoted with a Lewis acid (preferably BF3), and free Lewis acid. The product alkylate is a complex mixture of branched paraffins suitable for use as a high octane blending component for motor fuels.
-
公开(公告)号:AT150667T
公开(公告)日:1997-04-15
申请号:AT91918129
申请日:1991-09-25
Applicant: CATALYTICA INC
Inventor: COOPER MICHAEL D , KING DAVID L , SANDERSON WILLIAM A
IPC: B01J21/04 , B01J27/08 , B01J27/128 , B01J27/135 , B01J27/32 , B01J29/90 , B01J38/12 , B01J38/48 , B01J38/50 , C07B61/00 , C07C2/60 , C07C9/16 , C10G35/06 , B01J27/24 , B01J27/186 , B01J27/187 , C07C2/58 , B01J27/199 , B01J21/02
Abstract: This invention is a process for the alkylation of isoparaffin with olefins using a catalyst system comprising certain transition aluminas promoted with a Lewis acid (preferably BF3), and free Lewis acid. The product alkylate is a complex mixture of branched paraffins suitable for use as a high octane blending component for motor fuels.
-
公开(公告)号:AU4767396A
公开(公告)日:1996-08-21
申请号:AU4767396
申请日:1996-01-25
Applicant: CATALYTICA INC
Inventor: GRUBBER JOHN M , BULLS RAY A
IPC: C07C201/12 , C07C205/56 , C07D209/34 , C07C69/612
Abstract: The present invention provides a processes, having practical utility, for preparing 2-oxindoles, N-hydroxy-2-oxindoles, or mixtures thereof comprising: catalytically hydrogenating a 2-nitroarylmalonate diester to produce a 2-(N-hydroxyamino)arylmalonate diester, a 2-aminoarylmalonate diester, or mixtures thereof as a first reaction intermediate; cyclizing, by intramolecular aminolysis of one ester group, the first reaction intermediate to produce a N-hydroxy-2-oxindole-3-carboxylate ester, 2-oxindole-3-carboxylate ester, or mixtures thereof as a second reaction intermediate; and hydrolyzing and decarboxylating the remaining ester group of the second reaction intermediate to produce the N-hydroxy-2-oxindole, the 2-oxindole, or mixtures thereof, wherein the cyclization reaction and the hydrolysis and decarboxylation reaction are conducted in situ with the catalytic hydrogenation reaction without isolation of said reaction intermediates.
-
公开(公告)号:CA2210695A1
公开(公告)日:1996-08-08
申请号:CA2210695
申请日:1996-01-25
Applicant: CATALYTICA INC
Inventor: BULLS RAY A , GRUBER JOHN M
IPC: C07C201/12 , C07C205/56 , C07D209/34 , C07D491/04 , C07D495/04 , C07D209/60 , C07D209/70
Abstract: The present invention provides a processes, having practical utility, for preparing 2-oxindoles, N-hydroxy-2-oxindoles, or mixtures thereof comprising: catalytically hydrogenating a 2-nitroarylmalonate diester to produce a 2-(N-hydroxyamino)arylmalonate diester, a 2-aminoarylmalonate diester, or mixtures thereof as a first reaction intermediate; cyclizing, by intramolecular aminolysis of one ester group, the first reaction intermediate to produce a N-hydroxy-2-oxindole-3-carboxylate ester, 2-oxindole-3-carboxylate ester, or mixtures thereof as a second reaction intermediate; and hydrolyzing and decarboxylating the remaining ester group of the second reaction intermediate to produce the N-hydroxy-2-oxindole, the 2-oxindole, or mixtures thereof, wherein the cyclization reaction and the hydrolysis and decarboxylation reaction are conducted in situ with the catalytic hydrogenation reaction without isolation of said reaction intermediates.
-
公开(公告)号:ES2084170T3
公开(公告)日:1996-05-01
申请号:ES91911705
申请日:1991-06-12
Applicant: CATALYTICA INC
Inventor: DALLA BETTA RALPH D , REED DANIEL L , SCHUBERT PRISCILLA
IPC: F02B1/04 , G01N25/30 , G01N27/14 , G01N33/00 , G01N25/20 , G01N27/00 , G01N21/00 , F28D7/00 , B01J19/00
Abstract: This invention is a self-contained NOx sensor assembly. It may be used to detect NOx levels in a flowing gas stream such as might be found in an exhaust gas from a combustion process and to produce a measurable electrical output related to the content of NOx measured. The NOx sensor assembly is of a configuration that may be detached from a mounting and replaced. The sensor assembly comprises two sensor elements one of which is made up of a catalyst on a temperature measuring device. The other is a gas stream ambient temperature measuring device. The catalyst is selected and configured so that it selectively reduces NOx and the resulting heat of the reaction raises the temperature of the allied temperature measuring device. The sensor assembly also contains a NOx reductant source. The sensor assembly may be placed in a moving vehicle for measuring NOx levels in its exhaust gas.
-
公开(公告)号:AU1966295A
公开(公告)日:1995-09-18
申请号:AU1966295
申请日:1995-02-28
Applicant: CATALYTICA INC , TANAKA PRECIOUS METAL IND
Inventor: BETTA RALPH A DALLA , SHOJI TORU , YEE DAVID K , MAGNO SCOTT A
IPC: F01N3/10 , B01J23/40 , B01J35/04 , F01N3/28 , F23C6/04 , F23C9/00 , F23C13/00 , F23D11/40 , F23D14/18 , F23R3/40 , F23D3/40
Abstract: This invention is an improved catalyst structure and its use in highly exothermic processes like catalytic combustion. This improved catalyst structure employs integral heat exchange in an array of longitudinally disposed, adjacent reaction passage-ways or channels, which are either catalyst-coated or catalyst-free, wherein the configuration of the catalyst-coated channels differs from the non-catalyst channels such that, when applied in exothermic reaction processes, such as catalytic combustion, the desired reaction is promoted in the catalytic channels and substantially limited in the non-catalyst channels.
-
公开(公告)号:CA2184752A1
公开(公告)日:1995-09-08
申请号:CA2184752
申请日:1995-02-28
Applicant: CATALYTICA INC , TANAKA PRECIOUS METAL IND
Inventor: DALLA BETTA RALPH A , SHOJI TORU , YEE DAVID K , MAGNO SCOTT A
IPC: B01J23/40 , B01J35/04 , F01N3/10 , F01N3/28 , F23C6/04 , F23C9/00 , F23C13/00 , F23D11/40 , F23D14/18 , F23R3/40
Abstract: The invention is an improved catalyst structure and its use in highly exothermic processes like catalyst combustion. This improved catalyst structure employed integral heat exchange in an array of longitudinally disposed, adjacent reaction passage-ways or channels, which are either catalyst-coated (14) or catalyst-free (16), wherein the configuration of the catalyst-coated channels (14) differ from the non-catalyst channels (16) such that, when applied in exothermic reaction processes, such as catalyst, combustion, the desired reaction is promoted in the catalytic channels (14) and substantially limited in the non-catalytic channels (16). The invention further comprises an improved reaction system and process for combustion of a fuel wherein catalytic combustion using a catalyst structure employing integral heat exchange, preferably the improved structures of the invention, affords a partially-combusted, gaseous product which is passed to a homogeneous combustion zone where complete combustion is promoted by means of a flameholder.
-
公开(公告)号:NO941751L
公开(公告)日:1994-05-10
申请号:NO941751
申请日:1994-05-10
Applicant: CATALYTICA INC
Inventor: COOPER MICHAEL D , RAO PRADIP , KING DAVID L , LOPEZ RONALD R
IPC: B01J21/04 , B01J27/08 , B01J27/128 , B01J27/135 , B01J27/32 , B01J29/90 , B01J38/48 , B01J38/50 , B01J38/52 , C07B61/00 , C07C2/58 , C07C2/60 , C07C9/16 , C10G35/06 , C10G50/00 , C10L1/04
Abstract: This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites promoted with Lewis acids (preferably BF3) which have been used in the alkylation of isoparaffins with olefins. The process involves the removal of some portion of the reaction product residue adhering to the solid catalyst by contact with a solvent to partially recover the catalyst's initial activity.
-
公开(公告)号:MX9206669A
公开(公告)日:1993-07-01
申请号:MX9206669
申请日:1992-11-19
Applicant: CATALYTICA INC
Inventor: COOPER MICHAEL D , RAO PRADIP , LOPEZ DAVID L KING RONALD R
IPC: B01J21/04 , B01J27/08 , B01J27/128 , B01J27/135 , B01J27/32 , B01J29/90 , B01J38/48 , B01J38/50 , B01J38/52 , C07B61/00 , C07C2/58 , C07C2/60 , C07C9/16 , C10G35/06 , C10G50/00 , C10L1/04
Abstract: This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites promoted with Lewis acids (preferably BF3) which have been used in the alkylation of isoparaffins with olefins. The process involves the removal of some portion of the reaction product residue adhering to the solid catalyst by contact with a solvent to partially recover the catalyst's initial activity.
-
-
-
-
-
-
-
-
-