Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2005-05-31
2005-05-31
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S900000, C096S143000, C096S153000, C423S215500, C502S405000
Reexamination Certificate
active
06899746
ABSTRACT:
A granular composite material for recovering platinum particles from reaction gas flow in nitric acid production, comprising 50-75% calcium oxide by weight; 20-35% of magnesium oxide by weight; and 5-15% by weight of at least one chloride selected from the group consisting of calcium chloride and magnesium chloride; and a method of recovering platinum particles from reaction gas flow in nitric acid production comprising passing the reaction gas through a layer of a sorbent to absorb platinum particles, the sorbent being formed by the granular composite material described above, and extracting the absorbed platinum particles from the sorbent.
REFERENCES:
patent: 3381454 (1968-05-01), Sponsel
patent: 3398332 (1968-08-01), Logan
patent: 4239833 (1980-12-01), Retmaniak et al.
patent: 4428771 (1984-01-01), Nowak et al.
patent: 6093236 (2000-07-01), Klabunde et al.
patent: 6315816 (2001-11-01), Cho et al.
patent: 2004/0144251 (2004-07-01), Mitsuda
patent: 0830674 (1957-07-01), None
patent: 2 006 285 (1994-01-01), None
patent: 567487 (1978-09-01), None
patent: 1353501 (1987-11-01), None
patent: 1699597 (1991-12-01), None
patent: 1720706 (1992-03-01), None
patent: 1787520 (1993-01-01), None
Kozub, P. et al., “Investigations on Platinum Gauze Surfaces Used in the Manufacture of Nitric Acid,”Platinum Metals Rev. 44(2):74-87, 2000.
Fedorchenko Tetyana Viktorivna
Gryn Grygoriy Ivanovych
Kozub Pavlo Anatoliyovych
Lavrenko Antonina Oleksandrivna
Loboyko Dleksiy Yakovych
Pryvatna Firma “Sit”
Seed IP Law Group PLLC
Spitzer Robert H.
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