Preparation of a protective adsorbent carbon
First Claim
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1. A PROCESS FOR IMPROVING THE ABSORPTIVE ABILITY OF ACTIVATED CARBON FOR POISONOUS GASES WHICH CONSISTS ESSENTIALLY IN IMPREGNATING SAID ACTIVATED CARBON IN A SINGLE STEP WITH AN AQUEOUS SOLUTION OF COPPER AMMONIUM CARBONATE FORTIFIED WITH A SILVER SOLUTION OF SILVER NITRATE SOLUBLE THEREIN, AND DRYING AND CALCINING THE IMPREGNATED MATERIAL AT A TEMPERATURE BELOW ABOUT 500*F., SAID IMPREGNATED CARBON BEING CHARACTERIZED BY HAVING A LONGER ARSINE LIFE THAN ACTIVATED CARBON IMPREGNATED WITH SILVER FREE AQUEOUS SOLUTION OF COPPER AMMONIUM CARBONATE.
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1 Claim
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1. A PROCESS FOR IMPROVING THE ABSORPTIVE ABILITY OF ACTIVATED CARBON FOR POISONOUS GASES WHICH CONSISTS ESSENTIALLY IN IMPREGNATING SAID ACTIVATED CARBON IN A SINGLE STEP WITH AN AQUEOUS SOLUTION OF COPPER AMMONIUM CARBONATE FORTIFIED WITH A SILVER SOLUTION OF SILVER NITRATE SOLUBLE THEREIN, AND DRYING AND CALCINING THE IMPREGNATED MATERIAL AT A TEMPERATURE BELOW ABOUT 500*F., SAID IMPREGNATED CARBON BEING CHARACTERIZED BY HAVING A LONGER ARSINE LIFE THAN ACTIVATED CARBON IMPREGNATED WITH SILVER FREE AQUEOUS SOLUTION OF COPPER AMMONIUM CARBONATE.
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Current AssigneeGeorge T. Tobiasson, Morrell, Jacque C.
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Original AssigneeGeorge T. Tobiasson, Morrell, Jacque C.
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InventorsMorrell, Jacque C., Tobiasson, George T.
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Application NumberUS02/441,270Time in Patent Office2,965 DaysField of SearchUS Class Current502/417CPC Class CodesC01B 32/348 Metallic compounds
