C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/40 (2006.01) B01D 53/34 (2006.01) B01D 53/86 (2006.01) C01B 21/38 (2006.01) B01D 53/36 (1990.01)
Patent
CA 2081818
Abstract of the Disclosure In development of the process according to German patent P 40 15 294, a process is indicated for the removal of nitrogen oxides from waste gases with the recovery of nitric acid or a nitrate solution. The waste gas is reacted with hydrogen peroxide in an amount appropriate to the desired degree of removal of nitrogen oxides, on a catalyst, at temperatures of e.g. 20 to 100°C, to give the valuable product hydrogen nitrate. This is done by bringing the hydrogen peroxide as a solution, i.e. in the liquid phase, into contact with the catalyst through which the waste gas is flowing. The reaction product is either utilized in gaseous form or processed to nitric acid or a nitrate solution by procedures known per se.
Barenschee Ernst-Robert
Eickhoff Hubertus
von Wedel Wegido
Aktiengesellschaft Degussa
Barenschee Ernst-Robert
Eickhoff Hubertus
Marks & Clerk
von Wedel Wegido
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