PROCESS FOR GAS DEMERCURATION
First Claim
2. The process defined in claim 1 wherein said temperature is 20*C to 50*C and said mass comprises a porous material impregnated with an aqueous solution of an iron salt selected from the group which consists of ferric chloride, ferric sulfate, ammonium ferric alum, ferric nitrate, ferric perchlorate, ferric hydrogen sulfate, potassium ferric alum and ferric acetate.
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Accused Products
Abstract
A process and a contact mass for demercuration (removal of mercury) of various gases (air in industrial rooms, hydrogen from an electrolysis plant using a mercury cathode, etc.). According to the process, the polluted gas is passed, at ambient temperature and at atmospheric pressure or higher, through a fixed bed out of contact mass. This consists of a porous material (such as active carbon, silica gel or alumina), impregnated with an aqueous solution of a trivalent iron salt. The excess water is run off, and the impregnated mass may be dried superficially before utilization.
67 Citations
2 Claims
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2. The process defined in claim 1 wherein said temperature is 20*C to 50*C and said mass comprises a porous material impregnated with an aqueous solution of an iron salt selected from the group which consists of ferric chloride, ferric sulfate, ammonium ferric alum, ferric nitrate, ferric perchlorate, ferric hydrogen sulfate, potassium ferric alum and ferric acetate.
Specification
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- Resources
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Current AssigneeIoan Urmosi, Lajos Raduly, Nicolae Chiroiu, Nita Todereanu
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Original AssigneeIoan Urmosi, Lajos Raduly, Nicolae Chiroiu, Nita Todereanu
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InventorsRaduly, Lajos, Urmosi, Ioan, Todereanu, Nita, Chiroiu, Nicolae
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Primary Examiner(s)Hart, Charles N.
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Application NumberUS05/260,172Time in Patent Office679 DaysField of Search55/72,74,387,75,389 423/210,508,509US Class Current95/134CPC Class CodesB01D 53/64 Heavy metals or compounds t...
