Ronald B Kaplin

60631627, May 16, 2000

Dec 22, 1998

9/218889

Paul J. Orosz - Amherst NY
Robert L. Zeller - Youngstown NY
Ronald B. Kaplin - Lewiston NY

Occidental Chemical Corporation - Dallas TX

B01D 5314

95182

Disclosed is a method of removing chlorine from a mixture of gases. The mixture of gases is contacted with dichlorotoluene, whereby chlorine in the mixture of gases is absorbed by the dichlorotoluene. The dichlorotoluene is separated from the mixture of gases and is heated to desorb the chlorine and separate it from the dichlorotoluene.

59852267, Nov 16, 1999

Jan 7, 1998

9/003218

Robert L. Zeller - Youngstown NY
Sharon D. Fritts - Youngstown NY
David L. Johnson - Williamsville NY
Kenneth J. Carlson - Houston TX
Paul J. Orosz - Amherst NY
Ronald B. Kaplin - Lewiston NY

Occidental Chemcial Corporation - Niagara Falls NY

C01B 707

423240S

Disclosed is a process for separating chlorine gas from a mixture of gases. The mixture of gases is cooled to a temperature less than 0. degree. C. and is contacted with ice, which results in the formation of chlorine hydrate on the ice. The ice is separated from the mixture of gases and is heated or the operating pressure reduced to release chlorine.

54377110, Aug 1, 1995

Dec 16, 1993

8/167294

Ronald B. Kaplin - Lewiston NY
Chao-Peng Chen - Grand Island NY
Tilak V. Bommaraju - Grand Island NY

Occidental Chemical Corporation - Niagara Falls NY

B01D 5314

95182

Disclosed is a method to be practiced in a gas purification apparatus that is suitable for contacting a chlorine-containing mixture of gases with carbon tetrachloride in order to remove one of the gases from the mixture. The gas removed can be either chlorine or another gas such as nitrogen trichloride. In the method of the invention, one of the gases is removed from the mixture in that apparatus without using carbon tetrachloride by contacting the chlorine-containing gas mixture in the apparatus with a chlorinated organic liquid which can either be chloroform or ethylene dichloride.