The average grade of ore being extracted from any given mine is determined by the cutoff grade % cu which separates ore from waste. Cu,ni,zn,pb extraction of lead lead ore consists of pbs galena along with sphalerite zns, pyrite fes2,cu2s and some precious metals like gold and silver as gangue. Aspects of major zinc production including costs and energy consumption are also covered in this general reference volume. Temperature required for this process can be calculated from free energy. Extractive metallurgy presentation zinc slideshare. This book includes sections on the general historical context of zinc extraction as well as electrolytic process and carbothermic reduction processes. Pyrometallurgy deals with the methods of extraction of metals from their ores and their. Zinc smelting is the process of converting zinc concentrates ores that contain zinc into pure. Click download or read online button to get extractive metallurgy of lead and zinc book now.
Material with less than the cutoff grade when combined with all the ore being extracted cannot be profitably treated for copper recovery. Microsofts free reader application, or a booksized computer this is used solely as a. First of all lead ore 310% lead is concentrated to 6070% by froth floation. Immiscibility of metal and slag together with density difference forms the basis for separation. This site is like a library, use search box in the widget to get ebook that you want. Whether youve loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Froth floatation has been used with aid of cuso 4 to collect zinc ore. Zinccontaining batteries can be recycled by pyrometallurgical processes. Other readers will always be interested in your opinion of the books youve read. Processes of zinc extraction name of process horizontal retort vertical retort. The extractive metallurgy of zinc roderick j sinclair. Due to its very low boiling point, at such temperatures, zinc will escape with exhaust gases. The extractive metallurgy of zinc by roderick j sinclair formerly with the. This volume summarises the broad configuration of zinc extraction processes and the important aspects of their design and operation as a guide for metallurgists working in the industry.
When the steel was recovered from the galvanized scraps by electric arc furnace eaf, metals such as zinc and lead were volatilized and entered the vapour phase at the temperature of molten steel, subsequently the zinccontaining dust was collected in the baghouse when the vapour was cooled 3. Coke open, carbothermic zinc production, mg production by pidgeon. Extractive metallurgy methods are divided into three categories. Extraction of zinc application of zinc refining process.
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