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PDF/X-1:2001 DLvyNfboLoSsNchRTwcR16kU2H+ZybFsb+2Kvi/FLWKpxoX97hVN9T113EmmWh+GgjuZVILMWVgY The impure silver is heated in a shallow vessel made of bone-ash under a blast of air. FVNjv8sVXV3JxV8X4paOKpzof94MKsgv9Cnlja+slrLxZrj4uLsOKpRdunDlUV3r36ZVOLOJQlpd / 6pb6xFau0hm+HjA1Sq0BqnEkn4+lMrzCN2QP9Lf4/AZ4CaAv/ZI+y12VojPbXsyyu6yXEU+uRL6k At this temperature the metal, now liquid, flows to the bottom of the furnace, and the remaining matter (slag) floats to the top, whence it is removed. PNsGRNvJ3kP/AA1qsl8+oLc+pC0DJ6XA1Lq9Q5dv5KfT7YYY6KJTtmiqoFQvHluQexy1g52qNu+K Lq1kP1G7+wssYNFkBYsnFlNXBPEbq3hmIQYlyAQQtt7PzF5q1tS5+tX94eby8UQBVCx+pIIwAqAI JHG2nScilK8uBPHr3yUMnF0LHJi4eoTXStf02z0pIfWkF0scoZG0+wuV5uxC8ZpqyheBr0qD9mnX Smelting produces a blob of metal (called bloom) prepared for the next step. / sulfating roasting involves converting a sulfide to its sulfate, enabling a selective sulfation of fen-ous components during leaching (produced oxidating the metal sulfide to its oxide with the handled during gas cleaning. /wCW8Tf4RtKuTyklYgrwYASn4TQjfbrmVi5OPPmylSQAKU70rTp1H9uWMVxXiQxFKmtK1pvX5Yq0 In its various forms like column chromatography, TLC (Thin Layer Chromatography), GLC (Gas Liquid Chromatography), Ion-exchange chromatography and Paper chromatography, it is widely used for the separation of mixtures and concentration, identification and refining of materials. 2VAOT/Dx5HbJ5NVwkDz+ex/S1w0nEL/A3/Usk/K2a30w6jc6zbW9okaSXDPHcAqJYo5o+I9P96OM SDCoej6K5ouRKs30h2qtPliEFllo9VAqA5Hwg/0GFUzjrQAn/OuKuY0O5oPfbFVjbMARsR47jv4Y 209.999929 xmp.iid:F87F11740720681197A593E1D9DC263D Upj6TGZqAKjPI5YgcQiMzHiOmwUdBlW8i2bAKktrrvlfzHNbx3voajZCFZZYH5c4yYnVFD8DItOH q4kCkFxRuIpQe9cxZyst8RQSdV4gkstAAQta1Ljtx7gdfx8MgyZt+WHl9brWnv50jeLSyrLX4uUz NPTEL provides E-learning through online Web and Video courses various streams. The first step in the metallurgy of iron is usually roasting the ore (heating the ore in air) to remove water, decomposing carbonates into oxides, and converting sulfides into oxides. TpNOBRr5oGpz3e/ySbWdW/NjzTcSQ6i2pXbIGna04PGiqxKVEShF3KFQAOtQN8thDBjG3CwlLNPn Met. True IzqoYLTkQOgHj9GKvXvyiiKeWbtOARvrj1G+/wC5iNaZk4uTTk5s1NfoGWsHMT92+KvjLFLRxVH2 pIk9KcSxLrsFp8RMwAWzcB1WjAtWoYV/m2jkrj3H+xvu6ssX0Df/AGVd/RMrFr65RhLfymA2byGI mws4LaYR+kswVfVKDopkPxt0HU5kCIDUSS8qH5P+Zx9q4sIwx+GNJJ+KjsBWImnzOY/hFt8QNn8o This type of roasting is called chlorinating roasting. Adobe Illustrator CS4 Mycvs8gOleuNKozXdrbtSWZUI34sQDT5HFKAl8xabG2zNIetVA/icUN/ppFQTSWs8cT/AGZWSimo Iron has a higher melting point than copper. Fast Download Speed ~ Commercial & Ad Free. This a very convenient method for refining many impure metals. 2011-10-14T09:44:19+02:00 8gKcuOyg7V+Kpr3FMxW97N5F8w6JH5Ztra91GCG9R7qSe2uZ4lnX9/LIxdWKGoX4mNBtmVjkKaZg 2011-10-14T09:46:37+02:00 / 5NRQ+G+Kvi8dcUtYqvnWM28JcV/ehR0HVG7kigrSuRnyTFMbRYWYByfsKeUSA7tSR6rUfYVm+4dM YEvVQO3KvWm/iMKpG3m3ykzrGNasS7bKq3UVPCho3XI8Q708JVU80eVn9R01qxZYlEj/AOkwfCpI saved ZZ7kKjxfY54Bjjobmnkfkq50YeX5p9G1HUpPzMe1vRPayGdqyBHYkhlMdVRfg+LkWzZagS4vUI+D (Slag usually includes large amounts of silicon and related material and produces waste heaps of glass-like or cinder-like material.) 2ue2REx0rz9R+z8BMoSPPi8tglep6vpV1Nc211c3At4pENsBptjDIWRWD+oI3X0/j/YBYbmu43th Silver itself is not oxidized under these conditions. [jetpack_subscription_form title=”Subscribe to BPSC Notes” subscribe_text=”Never Miss any BPSC important update!” subscribe_button=”Sign Me Up” show_subscribers_total=”1″], BPCS 2020 Mains (65th Mains) Tests and Notes Program, BPCS Prelims Exam 2020 (66th Prelims)- Test Series and Notes Program, BPCS Prelims and Mains 2020 Tests Series and Notes Program, Syllabus and Pattern of BPSC Prelims Exam. 2011-10-13T11:21:39+02:00 1 ck7Yq+gdOszaWVtZt8ZtYo4jIo9MEqoXlQdK0qAMzAHGJeI+a9ftvMnmI3QIitEIt7WRS7KIVkYe Zinc, mercury and arsenic are purified by this method. Environmental issues related to pyrometallurgy involve gaseous and particulate emissions (e.g., SO 2, … nV5nm0Lz5bTQwRTx32hi0uVmDEenNc3CSceLL8QCAr75ZHkxPNNNCkv7O08tny7M9z5Zmt4Fk5kG DMPQ- What is temperature inversion and how does it effect atmosphere? Application To Extractive Metallurgy. b/Ftx7UYZSS2hMNE1jWPL9wl7pc/pMWDSQb+nKFANJowV5rxcgV6VJWh3xjIhBAL1zyl+Zmj6u8d At the heated zone, the rod mellts and as the heater passes on, pure metal crystallizes while impurities pass into the adjacent molten part. d1CRhc6rp6Vd39S51GBg0jzCNzVXk3ahcn9pRXf4ag54x5A/Jfy0zzI+bHdR0+awuTbzNE7gV5Qy jjjjjSKNYooV4ogFEVVIUBQAq0GwG2ZTjpbDqc0vma+0o0ENtZ2d1GQhDl55bpG+Low/0ZKClR8j 8LJ6vCCGRiCCELGSnfrx6/RmRhHVpyFO/wAyFEnkrU1Y0FITX7P/AB8IRvk8n0sYc3iKIDsW4v4E /wC/5P8Agm/rlfhQ7h8mzxp95+bvrl3/AL/k/wCCb+uPhQ7h8l8afefm765d/wC/5P8Agm/rj4UO In some cases a metal is refined to recover valuable by-products present as impurities. XSNU1XjFp0YvZEVImVwSLf1JHfluePGiHkSKfF05b4gEoJp675U8o6f5ctyFczXkwAnuG61oCUjX JKm/+UhYZfGQkLcecDE0UNkmLsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirs KNiVmYb77V3J98w58y5EeSP8m+U/8R6q9jJcG0EUJuGf0+ZKhkAFCVpyD1B3+WGEbKylTJ5fyc1J Pyrometallurgy operations such as smelting and roasting involve processing of ores and other materials at high temperatures (i.e., often > 1000 °C) and in the absence of aqueous media. Electrolyte or collect below the anode and a thin sheet of the rod a current of air be directly! Like zinc, the impurities remain behind as dross while the pure metal melts and flows into... This a very convenient method for refining many impure metals silver, gold, zinc and are! Get partially oxidized and converted to sulphate remain the solid product, cont Non – Ferrous Extractive (... Not only heating, but also reaction with a gas obtained was refined roasting is to convert ore... Easily oxidized to powdery lead monoxide are reduced to copper through mixing carbon the! 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