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roasting metallurgy pdf

Roasting is a step of the processing of certain ores.More specifically, roasting is a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal component(s). In Order to Read Online or Download Application To Extractive Metallurgy Full eBooks in PDF, EPUB, Tuebl and Mobi you need to create a Free account. UtHhMxZi8CRygvElQzRTkqKyY3PCNUQnk6OzNhdUZHTD0uIIJoMJChgZhJRFRqS0VtNVKBry4/PE Roasting . 4E50sf3ekiP525dLXHqJH+a9+8uaBFpHlCxnK8bi+d3eo3CJ8KD9bfTmlhvuerspdyIaalcmweFf The types most commonly in use are fluidized-bed, multiple-hearth, flash, chlorinator, rotary kiln, and sintering machine (or blast roaster). N. Ahern, in Gold Ore Processing (Second Edition), 2016. lWNFNKUrvtkDGfHPjArhNMhIcEOEn6harrtnJcaf+ZGtvf3a3Wj63/uOjjuJFiRpL4oX4jqQjUU9 The field of extractive metallurgy encompasses many specialty sub-disciplines, including mineral processing, hydrometallurgy, pyrometallurgy, and electrometallurgy. +Ynd2tvfNev3tpJaXd2ZreXdkZU68g1QQARv+s+OMcMQbAWWomRRK9POXmJGRhcqSj+ovKGE/F03 Lbc0kn+H93FLHwR1DUAFOZWM8cMTRsIIsPcZUBjALErWpj2+IUrx/DMtoYL+bGprbeX4dNVoxNqU vhhQH50+babWFgtQORCTGpANdvVXqafL3x8Yp8MLk/MfzF5kntdBu447C01KWK3uLqx9VbgBpxX0 NhlGVPD4boubVZqx+iqrFKGcFVMpl5j7XH7ZpxFO9K75it70b8n9VumS90qd+cSKlxarVP3Y3jde bVAiPEOcd0ZpFv5ivL600i4d0g1WVL6WRWYMsS8i6g/s1FNvGmbGZxRiZx5w9PxcGAykiJ/i9X7F q4kCkFxRuIpQe9cxZyst8RQSdV4gkstAAQta1Ljtx7gdfx8MgyZt+WHl9brWnv50jeLSyrLX4uUz xmp.iid:24789EF83520681195FEAB9CF91BEA0D Some of the refining processes used are defined below. The impurities present should be such as not to be affected. vIVoDTjTqT9re7CejVkCffmPB6nkm9VQ0iqYnRI+IApKo5OWDAKPtHjTp1pXJ5OTGHN4uyx0BDLQ Adobe Illustrator CS4 DMPQ- What is temperature inversion and how does it effect atmosphere? Get any books you like and read everywhere you want. PNsGRNvJ3kP/AA1qsl8+oLc+pC0DJ6XA1Lq9Q5dv5KfT7YYY6KJTtmiqoFQvHluQexy1g52qNu+K (This can be done directly with copper oxide ores. P6m7wsh/i/2ShfaB5pLfV7nVbadFJiA/SlvIgDgSHf1SvFiAT7++SjkhzAP+lP6kSxZOsvtXQ+S9 / ByCgedsgRVGxXpt9kE0Ph+AypsXiMK5J8N/CpNSD+GKrApXc0p9lgCabdxSu1MVbpVilKd6e4+Xy XrFqkMys3ItLG6Eg1DEgF9+n9R1yfglh4jUX5OamC3q6jbrSvplFdq+FQaU+g4+CV8RmXkvy3ceX orT5VPV3kV2Ae5eX9KTR9HtNLSYzLbLxaRhQtuWY0XoOTbDw798yYihTQTZRyOVNOQ22Yk7n7vnk Ti(s) + 2I2(g)  Ti I4(g) TiI4(g)  Ti(s) + 2I2(g) Pure. xmp.iid:F97F117407206811994CDB02050818BB Yellow Gangue: The earthly or undesired materials which are contaminated with the ore are ... • Roasting is the process of heating the ore strongly in the presence of excess or tIlsbidJnedpxJGCPtIq71APVcthGgwlKynp2PiehybFveu/frir4wxS0cVTC0uDbWs86niyrRGp In this way, the impurities are swept over one end of the rod, which is finally discarded. Roasting is a process of heating of sulphide ore to a high temperature in presence of air. 8LJ6vCCGRiCCELGSnfrx6/RmRhHVpyFO/wAyFEnkrU1Y0FITX7P/AB8IRvk8n0sYc3iKIDsW4v4E JPEG UD/KC1yJEtt5D4xTtvtH/SlBPDptvDF6f1G4vI5/Xa1MF/6xBr+4cNSP0/keXvk7J7694Y8MR3X7 2011-10-14T08:41:38+02:00 IzqoYLTkQOgHj9GKvXvyiiKeWbtOARvrj1G+/wC5iNaZk4uTTk5s1NfoGWsHMT92+KvjLFLRxVH2 Calcination and roasting are generally carried out in a reverberatory furnace or in a multiple hearth furnace. XSNU1XjFp0YvZEVImVwSLf1JHfluePGiHkSKfF05b4gEoJp675U8o6f5ctyFczXkwAnuG61oCUjX 2aQqAU+Bqg9z/k4+ITsvABuz3Sfyx8q6XqFreW0cjT2gqglcOhcVpKykfa3240AIFN8sGMAtZmSx a81W0SwWmm6bFElTHFFBKiqSeTEKstOpPTAMpXww9L8l+YDr/l+LUJghvAzx3aRo0aJKprxAZnqO YnamPEF4SmdAGJpTehFOo69Mkh88+ZUT/FGsoVYEXtyWJq8mzM1f2F4t16bDx74cuZciPJkH5Y6n n6sUQYyH00ALzOxooULUlq7bd64q+ftT1U6vqc+qzMWa5Zpmt5TUIpkpHCrKwLgRha9Kb7bZiSNm 2011-11-18T08:05:52+02:00 65JAhkW7ChXCK0JFVIIqPUapUCoAoOR2zGgaLfIWEX+ZevaZrfmWOexLGG2t44WldGQvyLS1VXCt ROASTING oThe concentrated ore is then roasted in a furnace between 500oC and 700 C in the presence of a current of air. 184 XFW6nvir4wxS4+OKpxoZHqYVeh6OTVafRgVObjylpOqqWZDbXNCRPFQVO5PNT8LVZ6noT45WYApE lsbm1mgAqzr8ArT4huu/+sBgIsJCtZqgBW4JXgKAUCMHCAcSnEkUPGpPUA9TlBbAz/yN5gg0q4kt lOKm/lqCaW8f0tRfTGCgG4RJWqpYVU+iC3avhtlWU0OVt+CJJ2NJ1AmvRSxwx+Y5IWeUrULeha/A hL+qpkURQL6jFdiAxkVFWo+7tVlOzPGN3lfrMIzFMGYN6R5szM6rHGVQDfgRxYdRsAACN8x25fHb oHXMjFosk+TVk1EIcy8RmuSyekhIirXfqT4nOiwacYx5umz6gz2HJkHkfTmvLi6K2rXjxIpSBLMX 2011-10-12T16:12:07+02:00 dirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdir/9k= Met. tion only partial roasting is practiced. 3IAp1rdXEFTySVYpS8dtOpcNKVPKReQC7cVJU/aPAMrgYLS9A/KHRy93ea40ZitxEtraM6qOR+H1 qKE7b4pfND/nprwNLbQtCtoQRSGOxHHipB4mrnb4f89s6IdlYvN0p7RydwbX/nIDz9Cix2K6fYRo RVPFgw+BfssM8uEdd/LuuugZTwR4j93xq9ks8vflodY0+7vFnjT1LVp7YKX4W7pfW8LpLyHNm9CV Millimeters Chromatography is based on the differential adsorption of the various components in a mixture on a suitable adsorbent. Adobe Illustrator CS4 DMPQ- . 15AcAnp8eQNB/Nh/K6aq2+aPzGe7o/JRg/NP88Z9UN5BNezSKUDWqWYaECVC8amIR0+NByU9SN64 NTuAN8ilm/lX8sr/AFS0WXUxJp9s4ikikUjnLGeXqL6ZPwsfh+Jl7DZqkiyOO+bCU6eo6doGiaW6 On passing an electric current through the electrolyte, the metal dissolves in the electrolyte by oxidation of the anode and pure metal is deposited at the cathode. saved Extractive metallurgy as a discipline deals with the extraction of metals from naturally occurring and man made resources. hEiEcIL1zyt5vs/Mdty4/VtQgFbuzblWMeo6KwZlUNy4VPGtOhy+M7apRpNzI5oTvxIOxp28RkmK dJcsCZoIC8hUfsEyMy0Pf4cEOysY5klZdozPIAJFcfnh+ac8skja9KpljMLKkUCKEJr8KrGArb/b idx0yVAjl/sGN11/2aje6oIZYLiROV21nFFJcx64JnkMtFPMozFRWN+cVfhDCtNiZRhe3S/5v4+a 256 vVRSFdjbT0WppuQhplH8r4+6X4+Lf/Jp7wgptOvoZ2gkiPqoASq7ncVHT2zLxazHPkXGy6OcfND5 uuid:1fc9909a-90e7-44c6-9909-d68cdd9f8b32 The impure metal is made the anode and a thin sheet of the pure metal as cathode. / GFCDVOCjnQciT3qBdiHVryHozXztE7eT9Z4qhZLOdgWoQAqEsdxs3Hlls+TXHm8b8m61YaP5lsr+ zACO0fUyLXlxqNstjisW1ynRTh/yaknm9Z9ZHKQl5mMDE8mbkeJaXkdj1Yk/wl4PmjxFex/KY2Fz In metallurgy: Roasting. Default Swatch Group xmp.iid:FC7F11740720681197A593E1D9DC263D hAI5+m3IOx9Q7j6NseA8q/2IRxirJ/2RUFuZvWZLrU43aeFvrJN/cqGuIwI+TgIfj4ECnSg65Ku4 z4HrQtsTWm3thwjquQs/VPTBCnevw1JO7fKmXNbG9MuI5/zD8wGMN6lrpulQygqACxlvpNjyqwpL xmp.iid:F77F117407206811994CDB02050818BB Most of the metals such as copper, silver, gold, zinc and chromium are refined electrolytically. c7EEKSgSvQkU7YcvNGPkzL8qbOW28rznioiuLyV4HQ1DqqJAX3LfaeJv9rLMQ2YZObK1CtIakfsn saved Lu3tXYqW40KkpupKsGUla7Gm2QyYoz+oWzx5ZQ+kqtvd69rWtC5bUD+kypdby4uFgIESVoJZGQLR In uranium processing: Roasting JHG2nScilK8uBPHr3yUMnF0LHJi4eoTXStf02z0pIfWkF0scoZG0+wuV5uxC8ZpqyheBr0qD9mnX AQACAwQFBgcICQoLEAACAQMDAgQCBgcDBAIGAnMBAgMRBAAFIRIxQVEGE2EicYEUMpGhBxWxQiPB For example: 2ZnS(s) + 3O 2(g) ===> 2ZnO(s) + 2SO 2 + CO) Metal. PDF/X-1:2001 VdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsV Adobe Illustrator CS4 2109504 Advanced Physical Metallurgy I 3(2-3-7) 2109507 Advanced Mechanical Metallurgy. 1gJ6kEEtlpQtfRjUBgyq7RpSU7NwoRvQZQJEDeuH3ytyCLPW/dFbLZxWEd5frHcPBIkYd2tNJaOh Metals obtained by reduction processes still contain some objectionable impurities and hence have to be refined. dowVjZFKlVorHYDv1y2ODapNWTU73HbvQX+Lte+sC5E6Cb0BbMwhh+KIOXow4UJqetKkbZPwI1TX SQltaRqKGm1G5bfCMkOy8Pn80HtDJ5NSf85C/me5/wB7oFrs9LWA8l/lPJTtvh/k3D3faj+UMnkv eahwE3B+KgPHirciMlAWUSNB6l561afT/LV2bSVE1W5RbezBPCT95IsTNHRgVKLJUMDsaVzImaDT 4fJfGn3n5u+uXf8Av+T/AIJv64+FDuHyXxp95+aiSSanrljW2GKmqkg+IxItQaXetL05tv13ODgH Ge, Si and Ga are used as semiconductors are refined in this manner; gallium-arsenide and indium-antimonide are also zone refined. The preliminary treatment that is commonly… Read More; uranium. g5QPBemdwZ6ESyIvoFAh5Eq3Knw9crlIiR5/Mf2t0IgxHL5Hv+SIli0q2kt7qNdMu47ZqmIQakI7 ptpUl4k9K8CQNhiCCpCvKeT/AGaUI4nbv3APywqtLGqqQQzb1I3BI/pirGfNP5keWvL2oJp9561x Deals with extraction of metals from its naturally existing ore/minerals and refining them Minerals: Inorganic compounds with more than one metal in association with non-metals like S,O,N etc. 2011-10-13T11:18:46+02:00 mt0cpgcPR1el1QBIk9Eg83eXbuURRXilpB8BYMqmhG3JgFr7VzTS0848w7OOSJ5FM7HUPKMUEb3l Impure metal in the form of ingots blocks in the upper part of a sloping hearth (usually of a reverberatory furnace) maintained at a temperature slightly above the melting point of the metal. 5NRQ+G+Kvi8dcUtYqvnWM28JcV/ehR0HVG7kigrSuRnyTFMbRYWYByfsKeUSA7tSR6rUfYVm+4dM EK3FvV4wOpH7S/SM2XZeq8LJR+mWxcLX6fxIbfUEu8ieb7LR7u4a/ElJ1VeSUKlgftMCRQ06kdc3 qs9uD5rKvE0jQMq6hSIuS7tVYajn68h+EGvx+O54o/zPu/X5MfDl/O+9L9YuNU04pNbeYTfUkZIp NPTEL provides E-learning through online Web and Video courses various streams. 08YPIdt2+j57Y8QXhKoPOHlIEj9N2FVJBrdQgg9O7eIx4h3rwlFadr2g38zW9hqVrdyovqNHbzRy Smelting produces a blob of metal (called bloom) prepared for the next step. xzA8vq8NhHIGHx1WoSQ7em9aGo4nwOXR0mmq/wBLXLUagHl9iE8wfmp+b+o+X4nW1OlaTeBlS50+ In the electrolytic refining of copper, impurities of iron and zinc are dissolved in the electrolyte and white gold, platinum and silver are left behind as anode mud. jjjjjSKNYooV4ogFEVVIUBQAq0GwG2ZTjpbDqc0vma+0o0ENtZ2d1GQhDl55bpG+Low/0ZKClR8j d1CRhc6rp6Vd39S51GBg0jzCNzVXk3ahcn9pRXf4ag54x5A/Jfy0zzI+bHdR0+awuTbzNE7gV5Qy The rest melts and is absorbed by the bone ash cupel. 5fXSJgglMi8VpCvJDRfh4qy/EoCru+KppF5k866HeJLHqVxMAgYRXLvPA8AmK1oxdCrlABJC/TYN +YDlNUH098VfGBkjH7QxSuQiRgqfGxIAVdySTTtiqdaIVWT4gRxAZtuimlCfbfCr0DQri3keNEPN 1.1.4.1 Smelting: tJrH/wA5KXyovLyvppcKeTLyALdiBQ0HtX6cp/kiP84tn8pH+a1b/wDOSmp/Ebvy1pcxPQxq8f38 R82tZxNEyI9zxUR8w3pVRx/eMy9TyLEDKyGVo7yd5h1DQdTaWOVRZSyBL21mJWNBIwaaRYEYfGqQ qnSm3Hpj4EO5P5mfehNT13VdT4/Xp/W4hQp4Ipoo4ruoHbJQxxjyYTyylzKa2dlps2jWcrXNklyk JKm/+UhYZfGQkLcecDE0UNkmLsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirsVdirs fF+yMHhFfEDJNI/LDQ7Us+oSNqD/ALOxgUKR0Ijbfr45MYh1YnIWZQQwwwrFFGsUMY4pGg4qAOwU Mycvs8gOleuNKozXdrbtSWZUI34sQDT5HFKAl8xabG2zNIetVA/icUN/ppFQTSWs8cT/AGZWSimo 72rhK1vNflRSf9zVgCDuDdQgg+H2seId68JRVnqOnX8BmsLqG7hVijS28iyoGABKkoSK0Iwg2ilf Some metals have very low melting point and soon vaporize on heating while the associated impurities remain the solid state. saved 1K+lJmSWSNEjaIRHdVFQ4lSQUqO2+brDivHEe/73V5cojklz6fcv1HzhJ9Za50gyW0lwB9dWVYpE xmp.did:FA7F117407206811994CDB02050818BB Silver itself is not oxidized under these conditions. saved 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. Metallurgy: The scientific and technological process used for isolation of the metal from its ores is known as metallurgy. 3Euy8ge5oBxoa9amvzzKaF6F2B9T4lXrTqKCp6fqxVtCxChTWtd+3cU6D7sVXFwiF2KpHGtWLHiF hVHpx+yUUkEb0pQ4qqEV9jir4xrilodcVTzQf7wYVCdapr80bR2Fk7KVJN1Ivwg8Vr6Yc/MFgu56 obHwFMHR4SNCFVJicvEzJDRDghaSUyWiY7LCB3PSNeJEgxdUkwgJChgZJjZFGidkdFU38qOzwygp 4eXp5/alfmrR3sNNtZSJB9YmdnRraKBI34hSsZjnmqp413Vctwz4if1/satRjMY/Hu/anvlmO4uf [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. 2011-10-12T17:09:15+02:00 TpNOBRr5oGpz3e/ySbWdW/NjzTcSQ6i2pXbIGna04PGiqxKVEShF3KFQAOtQN8thDBjG3CwlLNPn 9utZJmNecsjl5D8ubmn68yYihTQTZRs0Vu6MJIxwNY3Q/ZZZAAajbY1oa5JDwC+0zW/LHmL0IJHt zN44fjytSqxMoPqOsiMSjf8AFY41Ff2hlmHmwycnrZrUAjp37HMhqXO37o/hiqgxJNPx/DFVnUUP Y2Otytf3UNnbfU5eE00iRxGSR7c8QzkfHRNxX5DJ4jRYzGz1E+afK61rrVgKHc/WYRTp1+L3GX8Q AAIRAQMRAf/EAaIAAAAHAQEBAQEAAAAAAAAAAAQFAwIGAQAHCAkKCwEAAgIDAQEBAQEAAAAAAAAA kBlRqbDjuBkoSIRKNvatOv4dT0q21G1P+i3UYmVSwDKGG6Nx5AMvQ06HMkGw0EUx78yyYvJWoFk5 But below its melting point iron can still become spongy and amenable to treatment by hot hammering (forging), which helps to extract some of the remaining impurities. Environmental issues related to pyrometallurgy involve gaseous and particulate emissions (e.g., SO 2, … 2Ryd7tM/KG0juoJNQnS5gAQyW0KuquViKsOYYFRzo3Lv4DEYe9Tkd+cGrWlvoMGgQfBJO0TNCoCo This process is applied for the separation of cadmium from zinc. zItlY3NuVkJA4vKvJFPp0rU71FNsMzcuYr3kLjiQOUvlFQjsNRuRZakLa7MNnC8dxMunWjRrJX4l xVY9WagoevGu242/sxVuRqqTSgHjQdO+KoPTtV0/VLBL/T7hbqzkZ0jnTdGMLmN+J7jmhFemSnAx 7U6Yqu74q+McUtYqqXEzx2acSQzSKKiopQE9u+21cjM7JiiLOppWldht7bZQW0Mi03T7y8khtreI jiUPLwpmb4kO8OKceTuLcGn+b9KeGa2hvrJ7guIHhEsbM0TvG4BSh5I0TgjqKHEyxy50UCOSPKwy Differentiate between the Suspensive veto power and pocket veto power of president of India. / 2CuFeS 2 + O 2 Cu 2 S + 2FeS + SO 2 S + O 2 SO 2 4As + 3O 2 As 2 O 3 4Sb + 3O 2 2Sb 2 O 3 1Wh9uR+jKZy6M4hDWcWxcmpNSzk9SQTuT3OUlsZvo/kDzDqULHjHDCBS3luGaPkAx3VODSBT1oyr tyAdsVVDf2II/fx+A+IYpcl3au1ElRz0ADA1xVuS4hUjlIq1/mIGKqMupWKVrKCo6uu4FfcbYoVo In h y-drometallurgical process, the most widely used pretreatment process is roasting before leaching. NCaUxV635NtYvJnkzVNXvHLPykdoC5WMtAWiREqtAZZBQMK1BXL4DhFtUjZeaw2vmLzXraWtzMbn In this process called smelting, the oxide ores are converted into the metallic state by reduction. NWJTtVKmVVqSPAtyWncD3GQycmUObxYKpC8Kk0JYEdKV8Ou2YrkM78tflYNb0K31T9J/VmuedIjB saved Upj6TGZqAKjPI5YgcQiMzHiOmwUdBlW8i2bAKktrrvlfzHNbx3voajZCFZZYH5c4yYnVFD8DItOH 2rak0XmKW/tJLm2msdRCyGSSV5PTMhOwVfTSJKBVSpO/fLcMP3YiaNx8vxbHJP12L2l5/imVaYui / Adobe Illustrator CS4 7jbenbMOXNyI8kCiu78moWkDRI8hBVmYBCvJwy/CrdyKda9MCUMsUILMnFdyRHvSh8Cf44FVPqqS In roasting, definite chemical changes … In such case, it is called sulphating roasting or partial roasting. 2011-11-28T14:38:52+02:00 Roasting is a step of the processing of certain ores.More specifically, roasting is a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal component(s). endstream endobj 3239 0 obj <>/Encoding<>>>>> endobj 3223 0 obj <> endobj 3224 0 obj <> endobj 3229 0 obj <> endobj 3230 0 obj <> endobj 1187 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/ExtGState<>>>/Type/Page>> endobj 1246 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>/ExtGState<>>>/Type/Page>> endobj 1288 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>>/Type/Page>> endobj 1320 0 obj <>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 1321 0 obj <>stream DBPCteVBX9VcVedfnH5hhg0hNAUq95qJSWcFdlt435A1qPiaVBx2PwhvbKcstqbMY3tKvye0MvqF / NvvxSkXnPzVDoGlyelKn6WlT/QoGHIncKzkdKKDXfrTITlQZRjbw1ECDbt475iOQ9Y/KKwb6te6k /gO7/wCWqP8A4Fsf5dh/NK/yRL+csn8kzwQvNLeRrHGCzsVbYDJw7ajKQiImyxl2UYizIUxsgVoN It is a process wherein the ore is heated either alone or with some other material in excess of air below the fusion point of the ore. Usually, this method is used for sulphide ores. 6CoAs 2 + 13O 2 → 2Co 3 O 4 + 6As 2 O 2 y3J9LCHN5p+WMzf41sAT+8m9cO+xqPQkYj6WANR/HKMf1Ns+SO/OC95+boYUnWQW9nGskFefCR5H cy45d6zCxdirsVXSSSSyNJIxeRzV3Ykkk9yTiBSk2txVckkkbckYo1CKqaGhFCNvEHGlBppWZWDK xmp.iid:008011740720681195FEAB9CF91BEA0D TOMkCkU0EqJKrwyIOSrIGjdBUsNmpQ99v15QWwJnE7SzItzF6rKEqxJj/cwoSQNu6U3pXbxOBKP0 Acrobat Distiller 8.3.1 (Macintosh) UEsG2BZgN/HHiHevCVKbzX5VhcwzaxYxyc+Dxm4jBUgEMGHL4enfHiC8JdH5s8qLKYG1eyWZGMTI qtdlU03bruDiq1mOwG5pt7jf5Yq3yTb4iNq1J8OuKqgIpXf8aV+kYquBHevz7YqurWlD/n88VWtU oOMcpLOfil+L7I32yRkBYsb+Z/HyQIyNHfbyCIudKvXiEWpw6hF6IE+mJDpdnzlji/buCskbqAXP ZW6gilKEVriqTebNdfy9olxqMFqkoikHJFBQfvX6/CCPid9yadeW5+FoyNBMRZeewfnN5jCRvNp1 gOFRg/LgeMe7/CVNa9RQCIMjY9Q/0uzIxGx2+RV7WTRhJdIttpV0yIJoy9tqfGQhWd4U9Nwy0oN2 zGbkX9Wsbo84UW2SIErDI44gyz8VCP8ABVlRwf3jdEJLUouKocxgRenxCUVg3EASMzN8XqUJag4d r4wxS0euKo+2tTdWksKgNJQNGp7sprStRTl064JCwkKlgzwsY3+JUJSSPauxZWWNyHps5+nffbKC The following reaction takes place. mC04vYzOku9SvrxKAVr8P2DTv+GWYebHJyewI7gDmN9ttq7fLMhpaljQUAUcT2oKUpTGlU2PUd/D ygtHUKaVNCCSNXZoRN/BH5OhfFskXmzynL5duBA97Beus1xa3DQCQLHcWjhJo/3ioWpyFGAocuw5 fYEXvuf9keaJk1OW6tIBNrUb+hJ6rCbUbpncgcBx+A+mfjLde1OvWIhR+n/YhkZ2OY/0xSjzVPZ/ Black This chemistry video explains the important processes involved in extraction of metals i.e. CJXJIoPioMR4d/Tv/VWstVxD5qU9z5xrOJPMUTmBFumP6RjYsSWUBDzqz9aqNxWuEDH/ADfsYmWT In the metallurgy of zinc, the metal is invariably associated with cadmium. 8gKcuOyg7V+Kpr3FMxW97N5F8w6JH5Ztra91GCG9R7qSe2uZ4lnX9/LIxdWKGoX4mNBtmVjkKaZg Separation is the essence of metal extraction. 2ue2REx0rz9R+z8BMoSPPi8tglep6vpV1Nc211c3At4pENsBptjDIWRWD+oI3X0/j/YBYbmu43th nV5nm0Lz5bTQwRTx32hi0uVmDEenNc3CSceLL8QCAr75ZHkxPNNNCkv7O08tny7M9z5Zmt4Fk5kG Fluidized-bed roasters (see figure) have found wide acceptance because of their high capacity and efficiency. The most outstanding example of this is found inthecommercial productionofzincby the hydrometallurgicalroute.Roast-reduc-tion is aimed at producing a metal directly by the interaction between the oxide xXxmN8XPff7VPSW8sN+WTW1tq9zpPmIS+nqvqi6NqyCaRo4m9IOEVhxqVX7Q38cM+PxrIEo9OVsM 2011-10-14T09:46:37+02:00 oRzJJci9cho1I5XA+21Ov8v2TuMyMQqP7K+xxMxuR/Xf2pbljW7FXrmeevZuxV2KpN5p0pr/AE4t pLYGd/l9cra+YIFujyE8ZjhlLK6LKCY46sDRSVRkTqd9tmwwO6J8ntmnkqFLVrxq9exHUnamXtTw R47E+OKvnm9+rvdXDW6BImmcqBVtiSVHI+FaHoPCuYRckMo/KlnXzanonaS3lS4U0/u9mFK9fjVe 2wv59ZFp5ji1AJe2kxvnvbhXdQ0bxhHh4ca9xTv2y7OI8JAjcK25UP0sMJNgk1K9+bNPyt8pjX9f SGBqCNiCMVdybjxqeNa07VxW3p/5R+X/ACzdxx3Oq28F3cXc11BElzzZIvqsMMq0WMSVaYTyU5Rs saved YcPCRw7E+JRQvlG5jOueTG8tXd7N5iuJ2/xijPcOfSEq+p66vVKBOdKfTvks49M+MDg/h5McR3hw xmp.iid:F97F11740720681197A593E1D9DC263D A3qT0xV89+aNcn81eZnuLa1MSuwgs7brIxrxDOKkeq9AKL4Bd6VOJOVlyIig9w0DR/0Poltp3qtM VGVTkziEPaWrGLgvH0oghmK/bQIo5llPp9Gk4jl1b4VJyghsTCyhuIruMIzQzo61KCs0bBivwps3 Sometimes during refining some substances may have to be added to impart some desirable characteristics to the metal. 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