Martin N Cohen

US Patent:

45604100, Dec 24, 1985

Filed:

Jun 16, 1983

Appl. No.:

6/503649

Inventors:

Richard J. Burns - Piscataway NJ
Friso G. Willeboordse - Warren Township, Union County NJ
Martin F. Cohen - Yorktown Heights NY

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

C09K 318

US Classification:

106 2

Abstract:

Described herein is an improved fountain solution suitable for use in a lithographic offset printing press which solution contains a mixture of a polyol and/or glycol ether partially soluble in water and a polyol and/or glycol ether completely soluble in water.

US Patent:

59106115, Jun 8, 1999

Filed:

May 24, 1995

Appl. No.:

8/449254

Inventors:

Richard Alan Gregory - Belle Mead NJ
Martin Frank Cohen - Yorktown Heights NY

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

C07C20984
C07C20986

US Classification:

564497

Abstract:

Method which includes passing a gas stream containing carbon dioxide, hydrogen sulfide, sulfur dioxide, mercaptans and other acid gases through an aqueous alkanolamine solution to remove the carbon dioxide, hydrogen sulfide, sulfur dioxide, mercaptans, etc. , from the gaseous stream. Heat-stable alkanolamine salts form in the aqueous alkanolamine solution due to the acid contaminants (other than hydrogen sulfide or carbon dioxide) removed from the gas stream. A base is added to the aqueous alkanolamine solution to convert all or part of the heat-stable alkanolamine salts into alkanolamine and simple salts. The base-treated aqueous alkanolamine solution is electrodialyzed in an electrodialysis cell containing ion exchange membranes. The purified aqueous alkanolamine solution can be used again to remove carbon dioxide, etc. , from the gas stream.