Sargis Andrew Khoobiar

US Patent:

4479014, Oct 23, 1984

Filed:

Sep 20, 1982

Appl. No.:

6/420077

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

The Halcon SD Group, Inc. - New York NY

International Classification:

C07C 4535

US Classification:

568479

Abstract:

Isobutane in a C. sub. 4 hydrocarbon feed stream is converted to methacrolein in an integrated two-step process. Isobutane is dehydrogenated in a first step to isobutylene, hydrogen, and by-products and the reaction effluent is passed directly into a second step where isobutylene is oxidized to methacrolein without significant oxidation of the hydrogen and by-products. Any normal butenes present are converted to butadiene. The methacrolein and by-products may be separated and the unreacted isobutylene and isobutane recycled to the first step. Alternatively, the effluent from the second step may be used as feed to a further oxidation step for conversion of methacrolein to methacrylic acid.

US Patent:

47540494, Jun 28, 1988

Filed:

Feb 18, 1986

Appl. No.:

6/830423

Inventors:

Sargis Khoobiar - Kinnelon NJ
Arnold J. Shapiro - Bronx NY

Assignee:

Atlantic Richfield Company - Los Angeles CA

International Classification:

C07C12014

US Classification:

558320

Abstract:

Unsaturated nitriles, particularly acrylonitrile or methacrylonitrile, are produced in a process which integrates dehydrogenation of an alkane, particularly propane or isobutane, to the corresponding olefin, followed by ammoxidation of the olefin in the dehydrogenation reactor effluent to the corresponding nitrile. After recovery of the nitrile product, the residual gases are processed to remove hydrogen, oxygen, and carbon oxides, after which the gases are recycled to the dehydrogenation reactor. By operating with relatively low conversion of olefin to nitrile in each pass, the overall efficiency of the process is improved despite the need to recirculate substantial amounts of unreacted hydrocarbons.

US Patent:

42409306, Dec 23, 1980

Filed:

Apr 6, 1979

Appl. No.:

6/027632

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

Halcon Research and Development Corp. - New York NY

International Classification:

B01J 2714

US Classification:

252435

Abstract:

A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and cesium in predetermined relative atomic ratios.

US Patent:

42618584, Apr 14, 1981

Filed:

Apr 6, 1979

Appl. No.:

6/027633

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

Halcon Research & Development Corp. - New York NY

International Classification:

B01J 2318
B01J 2718

US Classification:

252437

Abstract:

A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, calcium and rhenium in predetermined relative atomic ratios.

US Patent:

RE305456, Mar 10, 1981

Filed:

Oct 18, 1979

Appl. No.:

6/086224

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

Halcon Research and Development Corporation - New York NY

International Classification:

B01J 2100
B01J 2308
B01J 2328

US Classification:

252455R

Abstract:

A catalyst composition useful for the oxidation of olefins, particularly the oxidation of propylene and isobutylene to produce the corresponding unsaturated aldehydes acrolein and methacrolein, respectively, comprises the combination of oxides of molybdenum, cobalt, iron, bismuth, thallium and antimony, and preferably also silicon. When the catalyst is used for the vapor-phase oxidation of the olefins with molecular oxygen, the aldehydes are produced with high selectivity. Alcohol precursors for the olefins can be used as feed instead of the olefins themselves.

US Patent:

46095020, Sep 2, 1986

Filed:

Feb 14, 1985

Appl. No.:

6/701725

Inventors:

Sargis Khoobiar - Kinnelon NJ
Arnold J. Shapiro - Bronx NY

Assignee:

The Halcon SD Group, Inc. - Montvale NJ

International Classification:

C07C12014

US Classification:

558320

Abstract:

Unsaturated nitriles, particularly acrylonitrile, are produced in a process which integrates dehydrogenation of an alkane, particularly propane, to the corresponding olefin, followed by ammoxidation of the olefin in the dehydrogenation reactor effluent to the corresponding nitrile. After recovery of the nitrile product, the residual gases are processed to remove hydrogen, oxygen, and carbon oxides, after which the gases are recycled to the dehydrogenation reactor. By operating with relatively low conversion of olefin to nitrile in each pass, the overall efficiency of the process is improved despite the need to recirculate substantial amounts of unreacted hydrocarbons.

US Patent:

43140742, Feb 2, 1982

Filed:

Oct 14, 1980

Appl. No.:

6/196805

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

Atlantic Richfield Company - Los Angeles CA

International Classification:

C07C 5125
C07C 57055

US Classification:

562535

Abstract:

A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, calcium, tungsten and optionally arsenic in predetermined relative atomic ratios.

US Patent:

42526825, Feb 24, 1981

Filed:

Dec 26, 1978

Appl. No.:

5/972745

Inventors:

Sargis Khoobiar - Kinnelon NJ

Assignee:

Halcon Research and Development Corp. - New York NY

International Classification:

B01J 2388

US Classification:

252437

Abstract:

A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and calcium in predetermined relative atomic ratios.