Lenore A Emig

US Patent:

7465833, Dec 16, 2008

Filed:

Sep 22, 2005

Appl. No.:

11/233439

Inventors:

Gamini Ananda Vedage - Bethlehem PA, US
Hao Ding - Macungie PA, US
Matthew J. Engel - Emmaus PA, US
Eugene George Lutz - Lenhartsville PA, US
Lenore Ann Emig - Westford PA, US

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C 209/00
C07C 209/02

US Classification:

564450, 564451

Abstract:

The present invention relates to processes for the catalytic hydrogenation of aromatic amines to their acyclic counterparts using a ruthenium catalyst on a lithium aluminate support. The hydrogenation process comprises contacting an aromatic amine with hydrogen in the presence of a ruthenium catalyst under temperature and pressure conditions suitable to effect ring hydrogenation. The process is especially useful for hydrogenating aniline to cyclohexylamine.

US Patent:

6084096, Jul 4, 2000

Filed:

Apr 9, 1998

Appl. No.:

9/057662

Inventors:

Jose Guadalupe Santiesteban - Allentown PA
Lenore Ann Emig - Whitehall PA
John Nelson Armor - Orefield PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07D48708
C07D295027
C07D295023
B01J 2940

US Classification:

544352

Abstract:

A process for preparing triethylenediamine and piperazine by passing an ethanolamine, ethyleneamine, piperazine or morpholine over a pentasil-type zeolite at elevated temperature characterized by employing a ZSM-5 zeolite in the hydrogen or ammonium form which has been treated with a passivating agent which is a silicon-containing compound capable of deactivating the acidic sites on the zeolite surface.

US Patent:

59170921, Jun 29, 1999

Filed:

Mar 27, 1998

Appl. No.:

9/049540

Inventors:

Gamini Ananda Vedage - Bethlehem PA
Lenore Ann Emig - Whitehall PA
John Nelson Armor - Orefield PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C20938

US Classification:

564480

Abstract:

A process for the production of predominantly primary and secondary amines and little or no tertiary amines by the reductive amination of aliphatic alcohols using a metal exchanged crystalline aluminosilicate catalyst. The catalyst has a silica/alumina ratio ranging from about 10:1 to 40:1, contains about 1 to 10% by weight of cobalt or nickel and about 0. 05 to 5% by weight of at least one other metal. High conversion rates are achieved at moderate temperatures and pressures.

US Patent:

61844160, Feb 6, 2001

Filed:

Apr 28, 2000

Appl. No.:

9/561071

Inventors:

Hao Ding - Macungie PA
John Nelson Armor - Orefield PA
Lenore Ann Emig - Whitehall PA
Dorai Ramprasad - Allentown PA
Gamini Ananda Vedage - Bethlehem PA
Frederick Carl Wilhelm - Zionsville PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C20900

US Classification:

564450

Abstract:

This invention relates to an improvement in a process for the catalytic hydrogenation of aromatic amines and to the resultant catalyst. The basic process for hydrogenating both mononuclear and polynuclear aromatic amines comprises contacting an aromatic amine with hydrogen in the presence of a rhodium catalyst under conditions for effecting ring hydrogenation. The improvement in the ring hydrogenation process resides in the use of a rhodium catalyst carried on a lithium aluminate support. Often ruthenium is included.

US Patent:

63166216, Nov 13, 2001

Filed:

Mar 23, 2000

Appl. No.:

9/533431

Inventors:

Lenore Ann Emig - Whitehall PA
Richard Paul Underwood - Allentown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07D295023

US Classification:

544352

Abstract:

A new method of making phosphate-based catalysts by mixing phosphoric acid with a substantially water insoluble alkaline earth metal salt such that the phosphorus to alkaline earth metal molar ratio is less than 1. The product, containing alkaline earth metal hydrogen phosphate and the starting alkaline earth metal salt, is filtered and dried. The product can be used as a catalyst in the production of triethylenediamine from, for example, mono- and di-substituted piperazines, such as hydroxyethylpiperazine and aminoethylpiperazine, ethanolamines and substituted ethanolamines, and crude hydroxyethylpiperazine containing piperazine, hydroxyethylpiperazine, bis-hydroxyethylpiperazine, and water.