کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
213374 | 462097 | 2008 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part I Novel atmospheric scorodite synthesis by oxidation of ferrous sulfate solution. Part I](/preview/png/213374.png)
A new atmospheric scorodite synthesis process was investigated. A large size and good crystalline scorodite was precipitated at 95 °C even in a short time of 1 to 7 h when ferrous ions were oxidized by oxygen gas in the presence of As(V) ion with concentrations as high as 50 g/L As in sulfuric acid solution. The key point of the process is the ferrous state of iron in solution and the oxidation of ferrous ions during the scorodite precipitation. This scorodite has a particle size of 15 μm with approximately 10% moisture content (wet base) even under atmospheric conditions. The arsenic content was about 30% by mass. The results of the leach test are very desirable. The process can be applied to a primary smelter which produces copper, zinc, lead and other secondary materials.
Journal: Hydrometallurgy - Volume 90, Issues 2–4, February 2008, Pages 92–102