JOSEPH JAMES MAJ
Pilots at Price Rd, Midland, MI

6566573, May 20, 2003

Sep 1, 1999

09/388219

Sameer S. Bharadwaj - Midland MI
Joseph J. Maj - Midland MI
Jonathan H. Siddall - Midland MI
Mark D. Bearden - Lake Jackson TX
Craig B. Murchison - Midland MI
Gerald E. Lazaruk - Sanford MI

Dow Global Technologies Inc. - Midland MI

C07C 5333

585658, 585660, 585656, 585621, 585624, 585625

A process and catalyst for the partial oxidation of paraffinic hydrocarbons, such as ethane, propane, naphtha, and natural gas condensates, to olefins, such as ethylene and propylene. The process involves contacting a paraffinic hydrocarbon with oxygen in the presence of hydrogen and a catalyst under autothermal process conditions. Preheating the feed decreases oxygen consumption and increases the net hydrogen balance. The catalyst comprises a Group 8B metal, preferably, a platinum group metal, and at least one promoter selected from Groups 1B, 6B, 3A, 4A, and 5A, optionally supported on a catalytic support, such as magnesia or alumina. In preferred embodiments, the support is pretreated with a support modifier selected from Groups 1A, 2A, 3B, 4B, 5B, 6B, 1B, 3A, 4A, 5A, the rare earth lanthanides, and the actinides. A modified fluidized bed reactor is disclosed for the process.

6624116, Sep 23, 2003

Nov 3, 2000

09/706464

Sameer S. Bharadwaj - Midland MI
Joseph J. Maj - Midland MI
Jonathan H. Siddall - Midland MI

Dow Global Technologies Inc. - Midland MI

B01J 2396

502514, 502 34, 502328, 502332, 502334, 585656, 585658, 585661

An on-line method of synthesizing or regenerating catalysts for autothermal oxidation processes, specifically, the oxidation of paraffinic hydrocarbons, for example, ethane, propane, and naphtha, to olefins, for example, ethylene and propylene. The catalyst comprises a Group 8B metal, for example, a platinum group metal and, optionally, a promoter, such as tin, antimony, or copper, on a support, preferably a monolith support. On-line synthesis or regeneration involves co-feeding a volatile Group 8B metal compound and/or a volatile promoter compound with the paraffinic hydrocarbon and oxygen into the oxidation reactor under ignition or autothermal conditions.

6524991, Feb 25, 2003

Sep 26, 2001

09/966535

Robert G. Bowman - Midland MI
Joseph L. Womack - Oakland CA
Howard W. Clark - Midland MI
Joseph J. Maj - Midland MI
George E. Hartwell - Midland MI

Dow Global Technologies Inc. - Midland MI

B01J 2106

502242, 502 63, 502 64, 502 77, 502240, 502243, 502244, 502344, 502350, 502 60

A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.

5015797, May 14, 1991

Dec 28, 1989

7/458036

Juan M. Garces - Midland MI
Joseph J. Maj - Midland MI

The Dow Chemical Company - Midland MI

C07C 268

585467

Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the linear- and near linear-alkylated isomers, such as p,p'- and p,m'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. Mixtures of the p,p'- and p,m'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of improved thermotropic, liquid crystal polymers.

5004841, Apr 2, 1991

Mar 14, 1989

7/323530

Juan M. Garces - Midland MI
Joseph J. Maj - Midland MI
Stephen C. Rocke - Mt. Pleasant MI

The Dow Chemical Company - Midland MI

C07C 4100

568678

Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted aromatic compounds enriched in the linear alkylated isomers, such as p-diisopropylbenzene or p,p'-di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.

2003019, Oct 9, 2003

Dec 17, 2002

10/323175

Sameer Bharadwaj - Midland MI, US
Jonathan Siddall - Midland MI, US
Joseph Maj - Midland MI, US
Mark Bearden - Lake Jackson TX, US
Craig Murchison - Midland MI, US
Gerald Lazaruk - Sanford MI, US

B01J023/42

502/334000, 502/325000, 502/303000, 502/328000

A process and catalyst for the partial oxidation of paraffinic hydrocarbons, such as ethane, propane, naphtha, and natural gas condensates, to olefins, such as ethylene and propylene. The process involves contacting a paraffinic hydrocarbon with oxygen in the presence of hydrogen and a catalyst under autothermal process conditions. Preheating the feed decreases oxygen consumption and increases the net hydrogen balance. The catalyst comprises a Group 8B metal, preferably, a platinum group metal, and at least one promoter selected from Groups 1B, 6B, 3A, 4A, and 5A, optionally supported on a catalytic support, such as magnesia or alumina. In preferred embodiments, the support is pretreated with a support modifier selected from Groups 1A, 2A, 3B, 4B, 5B, 6B, 1B, 3A, 4A, 5A, the rare earth lanthanides, and the actinides. A modified fluidized bed reactor is disclosed for the process.

4996353, Feb 26, 1991

May 16, 1989

7/352575

Kenneth A. Burdett - Midland MI
Joseph J. Maj - Midland MI

The Dow Chemical Company - Midland MI

C07C 51215

562412

A process for the preparation of polyphenyl dicarboxylic acids is disclosed. The process comprises contacting para,para'-diisoalkyl or dialkyl-polyphenyl or an oxidation intermediate thereof with oxygen under reaction conditions sufficient to form para,para'-polyphenyldicarboxylic acid. The process is optionally carried out in the presence of cobalt, manganese, and bromine compounds.

4891448, Jan 2, 1990

Nov 23, 1987

7/123741

Juan Garces - Midland MI
Joseph J. Maj - Midland MI
G. John Lee - Midland MI
Stephen C. Rocke - Mt. Pleasant MI

The Dow Chemical Company - Midland MI

C07C 4118

568628

Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the para alkylated isomers, such as p,p'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.

5965754, Oct 12, 1999

Dec 11, 1998

9/209699

Howard W. Clark - Midland MI
Robert G. Bowman - Midland MI
Joseph J. Maj - Midland MI
Simon R. Bare - Glen Ellyn IL
George E. Hartwell - Midland MI

The Dow Chemical Company - Midland MI

C07D30110, B01J 2108, B01J 2366

549533

A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and a catalyst. The catalyst comprises gold on a support of titanium dispersed on silica. The titanium phase is disorganized and substantially free of crystalline titanium dioxide, as determined by analytical methods, such as, high resolution transmission electron microscopy and Raman spectroscopy. Selectivity to olefin oxide is high at good conversions of the olefin. The time between catalyst regenerations is long, and the catalyst is readily regenerated.

6031116, Feb 29, 2000

Dec 11, 1998

9/209700

Robert G. Bowman - Midland MI
Joseph L. Womack - Oakland CA
Howard W. Clark - Midland MI
Joseph J. Maj - Midland MI
George E. Hartwell - Midland MI

The Dow Chemical Company - Midland MI

C07D30106, C07D30110

549523

A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.