Cawas A Cooper

US Patent:

49103423, Mar 20, 1990

Filed:

May 12, 1987

Appl. No.:

7/049648

Inventors:

Michael G. Turcotte - Allentown PA
Cawas A. Cooper - Macungie PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C 8506

US Classification:

564479

Abstract:

This invention pertains to an improved process for preparing noncyclic polyalkylene polyamine compounds in high selectivity by reacting an alkanolamine and an alkylene amine in the presence of an acidic catalyst. The improvement resides in effecting the reaction under fixed bed catalytic conditions and maintaining the reaction conditions such that a vapor phase condition exists for the reaction mixture comprising both reactants and products. To accomplish the formation of vapor phase conditions, sufficient alkylenediamine is injected into the feedstream along with alkanolamine, temperature is maintained from 200. degree. -280. degree. C. , and pressure ranges from about 0 psig to 150 psig so that the dew point temperature of the reaction product mix is below the reaction temperature at reaction pressure.

US Patent:

47205881, Jan 19, 1988

Filed:

Jan 16, 1986

Appl. No.:

6/819646

Inventors:

Michael G. Turcotte - Allentown PA
Cawas A. Cooper - Macungie PA
Michael E. Ford - Center Valley PA
Thomas A. Johnson - Orefield PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C 8506

US Classification:

564479

Abstract:

This invention pertains to an improved process for preparing noncyclic polyalkylene polyamine compounds in high selectivity by reacting an alkanolamine and an alkylene amine in the presence of an inert gas and an acidic catalyst. The improvement resides in effecting the reaction under fixed bed catalytic conditions and maintaining the reaction conditions such that a vapor phase condition exists for the reaction mixture comprising both reactants and products. To accomplish the formation of vapor phase conditions sufficient inert gas is injected into the feedstream along with alkanolamine and alkylene amine so that the dew point temperature of the reaction product mix is below the reaction temperature at reaction pressure.

US Patent:

47090286, Nov 24, 1987

Filed:

Feb 3, 1987

Appl. No.:

6/010353

Inventors:

Thomas A. Johnson - Orefield PA
Cawas A. Cooper - Macungie PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07D26530
C07D29502

US Classification:

544106

Abstract:

This invention relates to an improved process for producing a heterocyclic amine, e. g. , morpholine and its derivatives by reacting ammonia and a dialkylene glycol. The improvement resides in adding an inert solvent in the form of an alkyl ether of a polyalkylene glycol with said feed. By including such inert solvent one reduces heavies formation particularly at high conversion.