Ranjan Ghosal

US Patent:

6863713, Mar 8, 2005

Filed:

Dec 30, 1999

Appl. No.:

09/475385

Inventors:

Ranjan Ghosal - Albuquerque NM, US
James A. Belmont - Acton MA, US
Douglas M. Smith - Albuquerque NM, US
Jameel Menashi - Lexington MA, US

Assignee:

Cabot Corporation - Boston MA

International Classification:

B01D053/04

US Classification:

95117, 95127, 95128, 95136, 95138, 95139, 95143

Abstract:

An adsorbent composition containing a modified carbonaceous material capable of adsorbing an adsorbate is disclosed, wherein at least one organic group is attached to the carbonaceous material. Furthermore, methods to increase the adsorption capacity of a carbonaceous material capable of adsorbing an adsorbate and methods to adsorb an adsorbate using the above-described adsorbent composition are also disclosed.

US Patent:

20050119121, Jun 2, 2005

Filed:

Jan 11, 2005

Appl. No.:

11/032811

Inventors:

Ranjan Ghosal - Albuquerque NM, US
James Belmont - Acton MA, US
Douglas Smith - Albuquerque NM, US
Jameel Menashi - Lexington MA, US

International Classification:

B01D053/02
B01D059/26
B01J020/22
B01J020/02

US Classification:

502401000, 502417000

Abstract:

An adsorbent composition containing a modified carbonaceous material capable of adsorbing an adsorbate is disclosed, wherein at least one organic group is attached to the carbonaceous material. Furthermore, methods to increase the adsorption capacity of a carbonaceous material capable of adsorbing an adsorbate and methods to adsorb an adsorbate using the above-described adsorbent composition are also disclosed.

US Patent:

59728264, Oct 26, 1999

Filed:

Feb 1, 1996

Appl. No.:

8/591607

Inventors:

Ralph Ulrich Boes - Concord MA
Douglas M. Smith - Albuquerque NM
Ranjan Ghosal - Albuquerque NM

Assignee:

Cabot Corporation - Boston MA

International Classification:

B01J 2118
B01J 2002
C01D 300

US Classification:

502174

Abstract:

The present invention discloses an adsorbent comprising a densified carbon black. The densified carbon black comprising the adsorbent preferably has an increase in density of from about 100% to about 500% above the undensified form of the adsorbent. The densified carbon black adsorbent has an increase in adsorption capacity per unit volume over the undensified form of the adsorbent in excess of 100%. The densified carbon blacks are particularly useful as adsorbents for gases.