B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/289, 23/354
B01D 53/14 (2006.01) B01D 53/00 (2006.01) C01B 15/023 (2006.01)
Patent
CA 1186869
Abstract of the Disclosure A process of reducing the oxygen content in gas mixtures to 0.0 - 1.5% by volume is described, in which process the gas is contacted with a solution containing anthrahydroquinone derivatives capable of being oxidized with molecular oxygen under formation of hydrogen peroxide. The supply of oxygen is so adjusted that the amount of oxygen supplied, upon quanti- tative formation of hydrogen peroxide, stoichiometrically corresponds to not more than 90%, preferably 50%, of the sup- plied amount of anthrahydroquinone derivative. The hydrogen peroxide content at the contact surfaces between the solution and the gas must not exceed 100 millimols per liter at a si- multaneous oxygen gas pressure of not more than 100 millibars. The oxygen-poor gas mixture in accordance with the process of this invention may be used as a protective or inert gas in chemical process industries where use is made of inflammable gases.
406637
Eka Ab
Gowling Lafleur Henderson Llp
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