Adsorbent for water removal from ammonia

Details Adsorbent for water removal from ammonia Adsorbent for water removal from ammonia

2002-07-09

2008-11-04

Johnson, Edward M. (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

Aluminum containing

Reexamination Certificate

active

07446078

ABSTRACT:
The present invention provides an adsorbent for removing water and/or other oxygen-containing impurities from a fluid comprising ammonia to the ppb level and methods for making and using same. The adsorbent preferably comprises a substrate having a plurality of pores and a surface area that ranges from about 100 to about 2,500 m2/g and a compound disposed within a least a portion of the substrate. In certain preferred embodiments, the compound comprises at least one cation from the group consisting of ammonium (I), lithium (I), sodium (I), potassium (I), cesium (I); magnesium (II), calcium (II), strontium (II), barium (II), manganese (II), nickel (II), iron (II), zinc (II); aluminum (III), indium (III), iron (III), and zirconium (IV) or combinations thereof that is ionically associated with an anion from the group consisting of halide, sulfide, sulfite, or sulfate.

REFERENCES:
patent: 4016068 (1977-04-01), Rausch
patent: 4068387 (1978-01-01), Manos
patent: 4500327 (1985-02-01), Nishino et al.
patent: 4761395 (1988-08-01), Tom et al.
patent: 5135548 (1992-08-01), Golden et al.
patent: 5174974 (1992-12-01), Birbara et al.
patent: 5264187 (1993-11-01), Olbrich et al.
patent: 5529970 (1996-06-01), Peng
patent: 5531971 (1996-07-01), Tom et al.
patent: 5656064 (1997-08-01), Golden et al.
patent: 5776850 (1998-07-01), Klatte et al.
patent: 5876488 (1999-03-01), Birbara et al.
patent: 6033460 (2000-03-01), Snow
patent: 6241955 (2001-06-01), Alvarez, Jr.
patent: 0 283 965 (1988-09-01), None
patent: 0 433 677 (1991-06-01), None
patent: 0470936 (1992-02-01), None
patent: 0484301 (1992-05-01), None
patent: 0 914 863 (1999-05-01), None
patent: 1176120 (2002-01-01), None
patent: 416711 (1934-09-01), None
patent: 97142833 (1989-02-01), None
patent: 2077944 (1997-04-01), None
patent: WO0023174 (2000-04-01), None
P. Kung, et al.,Opto-electronics Review, 8(3) 201-239 (2000), no month.
European Search Report No. 03014475.2-2104 dated Nov. 10, 2003.

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