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METHOD OF PROCESSING ZINC, CADMIUM AND LEAD BEARING FURNACE FLUE DUST BY HEATING IN THE PRESENCE OF CARBONACEOUS MATERIAL
METHOD OF PROCESSING ZINC, CADMIUM AND LEAD BEARING FURNACE FLUE DUST BY HEATING IN THE PRESENCE OF CARBONACEOUS MATERIAL
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机译:碳质材料存在下加热处理锌,镉和铅的炉烟尘的方法
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摘要
A method of processing flue dust that contains one or more compounds from a first group of zinc, lead and cadmium compounds, and contains iron compounds, involves heating the flue dust to cause a substantial portion of one or more of the compounds of the first group to become gas-borne. A carbonaceous material is introduced to the remaining flue dust, and the flue dust/carbonaceous material mixture is heated to cause a substantial portion of the remaining compounds from the first group to become gas-borne while retaining a substantial portion of the iron in a non-gas-borne condition. The gas-borne compounds are separated from the non-gas-borne compounds.
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