Recovering metallic Pb directly from lead smelting dust by NaOH-carbon roasting process
نویسندگان
چکیده
منابع مشابه
Chemical speciation of lead dust associated with primary lead smelting.
The research presented in this article assessed geochemical factors relating to dust produced during primary lead smelting. Bulk dust samples and size-selective airborne dust samples were collected from four areas of a primary lead smelter and analyzed by X-ray diffraction and sequential chemical extraction. X-ray diffraction showed that the smelter dusts were composed primarily of sulfides, ox...
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Most of the dust generated from the copper smelting process in Chili has been stored after the stabilization by hydrometallurgical process because it contains high concentration of arsenic. However, in recent years, the generation of dust has increased because of degrading the quality of concentrate. In addition, the environmental regulations become stricter. On the other hand, valuable metals ...
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Recovering Y and Eu from waste phosphors using chlorination roasting followed by a water leaching process was investigated in this study. Firstly, by chlorination roasting and water leaching, Y and Eu elements present in waste phosphors were efficiently extracted into a leach solution. Secondly, the majority of the impurities in the solution can be removed by adjusting the pH to 4.5 using a Na2...
متن کاملThe Aluminum Smelting Process
This introduction to the industrial primary aluminum production process presents a short description of the electrolytic reduction technology, the history of aluminum, and the importance of this metal and its production process to modern society. Aluminum's special qualities have enabled advances in technologies coupled with energy and cost savings. Aircraft capabilities have been greatly enhan...
متن کاملDiscovering unrecognized lead-smelting sites by historical methods.
OBJECTIVES Our objective was to enumerate unrecognized former lead smelters in the United States. METHODS Defunct smelters were identified by historical research. The compiled list was compared with government registries of hazardous sites. Soil samples were taken from 10 sites. RESULTS Approximately 430 sites were unknown to the federal authorities. Only 5 of 319 sites were known to author...
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ژورنال
عنوان ژورنال: Journal of Materials Research and Technology
سال: 2020
ISSN: 2238-7854
DOI: 10.1016/j.jmrt.2020.01.007