Irshad Ahmed

US Patent:

6479677, Nov 12, 2002

Filed:

Oct 26, 2000

Appl. No.:

09/697240

Inventors:

Irshad Ahmed - Mahwah NJ

Assignee:

Pure Energy Corporation - Paramus NJ

International Classification:

C07D30706

US Classification:

549506, 549505, 549429

Abstract:

Processes are disclosed for the preparation of 2-methylfuran and 2-methyltetrahydrofuran. The continuous vapor-phase processes are commercially viable and efficient because they permit the preparation of 2-methylfuran and 2-methyltetrahydrofuran using commercially-available catalysts, namely, a reduced copper-based catalyst consisting essentially of cupric oxide, chromium (III) oxide, manganese oxide and barium chromate and a reduced nickel-based catalyst consisting essentially of nickel, nickel (II) oxide, aluminum oxide and silica. An apparatus comprising two inline hydrogenators is used for preparing the 2-methylfuran or 2-methyltetrahydrofuran.

US Patent:

6852868, Feb 8, 2005

Filed:

Aug 21, 2002

Appl. No.:

10/225809

Inventors:

Irshad Ahmed - Mahwah NJ, US

Assignee:

Pure Energy Corporation - Paramus NJ

International Classification:

C07D307/44
C07D307/12

US Classification:

549503, 549429, 549497, 549505, 549506

Abstract:

Processes are disclosed for the preparation of 2-methylfuran and 2-methyltetrahydrofuran. The continuous vapor-phase processes are commercially viable and efficient because they permit the preparation of 2-methylfuran and 2-methyltetrahydrofuran using commercially-available catalysts, namely, a reduced copper-based catalyst consisting essentially of cupric oxide, chromium (III) oxide, manganese oxide and barium chromate and a reduced nickel-based catalyst consisting essentially of nickel, nickel (II) oxide, aluminum oxide and silica. An apparatus comprising two inline hydrogenators is used for preparing the 2-methylfuran or 2-methyltetrahydrofuran.

US Patent:

7064222, Jun 20, 2006

Filed:

Dec 16, 2004

Appl. No.:

11/014379

Inventors:

Irshad Ahmed - Mahwah NJ, US

Assignee:

Pure Energy Corporation - Paramus NJ

International Classification:

C07D 307/06
C07D 307/36

US Classification:

549506, 549429

Abstract:

Processes are disclosed for the preparation of 2-methylfuran and 2-methyltetrahydrofuran. The continuous vapor-phase processes are commercially viable and efficient because they permit the preparation of 2-methylfuran and 2-methyltetrahydrofuran using commercially-available catalysts, namely, a reduced copper-based catalyst consisting essentially of cupric oxide, chromium (III) oxide, manganese oxide and barium chromate and a reduced nickel-based catalyst consisting essentially of nickel, nickel (II) oxide, aluminum oxide and silica. An apparatus comprising two inline hydrogenators is used for preparing the 2-methylfuran or 2-methyltetrahydrofuran.

US Patent:

20060229458, Oct 12, 2006

Filed:

Jun 5, 2006

Appl. No.:

11/446793

Inventors:

Irshad Ahmed - Mahwah NJ, US

International Classification:

C07D 307/00

US Classification:

549429000

Abstract:

Processes are disclosed for the preparation of 2-methylfuran and 2-methyltetrahydrofuran. The continuous vapor-phase processes are commercially viable and efficient because they permit the preparation of 2-methylfuran and 2-methyltetrahydrofuran using commercially-available catalysts, namely, a reduced copper-based catalyst consisting essentially of cupric oxide, chromium (III) oxide, manganese oxide and barium chromate and a reduced nickel-based catalyst consisting essentially of nickel, nickel (II) oxide, aluminum oxide and silica. An apparatus comprising two inline hydrogenators is used for preparing the 2-methylfuran or 2-methyltetrahydrofuran.