In the extraction of aluminium Process X: applied for red bauxite to remove iron oxide {chief impurity} Process Y: (Serpeck's process) : applied for white bauxite to remove z {chief impurity} then process X and impurity Z are_____.
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Halls' Process: Red Bauxite is fused with sodium carbonate to form sodium meta aluminate which is extracted with water. The impurity Fe 2 O 3 is filtered out. Al 2 O 3 + Na 2 CO 3 → 2NaAlO 2 + CO 2 Into the solution of sodium meta aluminate, CO 2 gas is passed to precipitate Al(OH) 3. The precipitated Al(OH) 3 is ignited at 1200°C to get ...
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tonnes for high grade bauxite to tonnes for the very low grade. Wang and Liu [16] have documented that red mud from the Bayer process consists of dispersive particles compared to sintering red mud. The specific gravity of the Bayer red mud () determined by pycnometry is higher than that of the sintering red mud ().
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Here you can find the meaning of In the extraction of aluminium :Process X : applied for red bauxite to remove iron oxide (chief impurity)Process Y : (Serpeck's process) : applied for white bauxite to remove Z (chief impurity) then, process X and impurity Z are :a)X = Hall and Heroult's process and Z = SiO2b)X = Baeyer's process and Z = SiO2c)X ...
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(X) Red bauxite contains the impurities of oxides of iron and silicates. In Bayer process, alumina is dissolved by reacting sodium hydroxide solution leaving behing the insoluble oxide of iron. (Y) White bauxite contains the impurity of silica which is removed by Serpeck's method A 1 2 + N 2 + 3 C 1800 ∘ C − −−− → 1 A 1 N + 3 C O,
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Solution. The correct option is D Leaching. Bauxite ore is concentrated by the process of leaching. It is a process in which a suitable solution is added to the ore. A chemical reaction takes place between ore and solution in which the ore dissolves in the solution. The insoluble impurities are filtered off.
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Bauxite is Al 2O 2O. Water molecules and other impurities are removed from it to make it pure Al 2O 3. By leaching in the Bayer's process, pure Al 2O 3 obtains. When a sulphide ore is roasted, it turns to oxide ore. Here the ore is oxidized and the ore acts as reducing agent. So sulphate part acts as reducing agent.
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The bauxite powder is mixed with carbon and heated under high temperature (above 1800^circ C) and a current of nitrogen is passed. Through this process aluminium nitride is obtained along with water and carbon monoxide. For the given question, let's understand how the process works and then identify the reaction matching the process.
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Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium.#Education #RedBauxite #whiteBauxiteThanks...
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The Red Bauxite has F e 2 O 3 as its significant impurity while Silica and T i O 2 are lesser. On the other hand, white Bauxite has significantly more Silica than F e 2 O 3 . We employ Bayer's process with the Red variety of Bauxite!
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All the statements are correct. (i) In gold Schmidt thermite process aluminium acts as a reducing agent. (ii) Mg is extracted by electrolysis of aq. solution of MgCl 2. (iii) Extraction of Pb is possible by smelting. (iv) Red Bauxite is purified by Serpeck's Method. Medium.
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Process X: applied for red bauxite to remove iron oxide (chief impurity) Process Y (Serpeck's process): applied for white bauxite to remove Z (chief impurity) then process X and impurity Z are: Medium. View solution > View more. CLASSES AND TRENDING CHAPTER. class 5.
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Serpeck's process Bayer's method and Hall's method is used for the red bauxite which contains F e 2 O 3 and silicates as impurities. Serpeck's method is used for the white bauxite which containes silica as impurities.
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Solution. Reduction of Al2O3 is not performed by carbon due to two primary reasons which are:. Very high temperatures around 2100 degree celcius is required for the carbothermic reduction. Aluminium Oxide is a very stable oxide and lies below the the oxidation line of carbon in Ellingham Diagram hence Al2O3 cannot be reduced by carbon as it is ...
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Serpeck's process D Hall's process Solution Verified by Toppr White bauxite containing the impurity of silica only in removed by heating with coke in atmosphere of nitrogen. Al2O3 +3C+N 2 Δ −→ 2AlN +3CO SiO2 +2C Δ −→ Si +2CO ↑; AlN +H 2O → Al(OH)3 +N H 3; 2Al(OH)3 Δ −→ Al2O3 +H 2O Other process are used for extraction of Al from red bauxite.
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Solution Verified by Toppr Finely powdered bauxite (Al 2O 3) is heated with coke and N 2 to 2000 K. Alumina forms aluminium nitride and silica is reduced to Si which is volatile. The hydrolysis of aluminium nitride gives aluminium hydroxide which on heating gives pure alumina. Al 2O 3⋅2H 2O+N 2+3C 2000K 2AlN+3CO↑+2H 2O SiO 2+2C→Si↑+2CO↑
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Process Y: (Serpeck's process) : applied for white bauxite to remove z {chief impurity} then process X and impurity Z are_____. Medium. View solution > In the extraction of aluminium; Process X: applied for red bauxite to remove iron oxide Process Y: (Serpeck's process): applied for white bauxite to remove Z (chief impurity) ...
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Process X: applied for red bauxite to remove iron oxide {chief impurity} Process Y: (Serpeck's process) : applied for white bauxite to remove z {chief impurity} then process X and impurity Z are_____.
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Serpeck's process D Hall's process Medium Solution Verified by Toppr Correct option is C) White bauxite containing the impurity of silica only in removed by heating with coke in atmosphere of nitrogen. Al 2O 3+3C+N 2 Δ 2AlN+3CO SiO 2+2C Δ Si+2CO↑; AlN+H 2O→Al(OH) 3+NH 3; 2Al(OH) 3 Δ Al 2O 3+H 2O
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Nitrogen Serpek process Serpek A nitrogen fixation process using aluminum mixture of bauxite and coke is heated in nitrogen at 1,800°C to produce aluminum nitride this yields ammonia on hydrolysis by boiling with aqueous potassium aluminate ... In the Prank Caro process, invented in 1895 7 and known as the "calcium cyanamide method, a carbide, such as Ca carbide absorbs nitrogen ...
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Process X: applied for red bauxite to remove iron oxide (chief impurity) Process Y (Serpeck's process): applied for white bauxite to remove Z (chief impurity) then process X and impurity Z are: Medium. View solution > A mixture of white bauxite powder and coke is heated in nitrogen gas very strongly. Which of the following products will be ...
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Process X: applied for red bauxite to remove iron oxide {chief impurity} Process Y : (Serpeck's process) : applied for white bauxite to remove z {chief impurity} then process X and impurity Z are________.
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For the purification of red bauxite which contains iron oxide as impurity to Bayer's process. For the purification of white bauxite which contain silica as the main impurity serpeck's process. Ask doubt. Courses. IITJEE. Class 11; Class 12; Dropper; NEET. Class 11; Class 12; Dropper; UP Board. Class 9; Class 10; Class 11; Class 12; Bihar Board ...
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Adopting the process of washing bauxite in the beneficiation plant can reduce caustic soda consumption and equipment and piping scale in the alumina refinery (OPEX), and consequently the payback for the beneficiation plant can be less than 3 (three) years. Besides the caustic consumption reduction, the beneficiation plant decreases the refinery ...
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(iv) Red Bauxite is purified by Serpeck's Method. Medium. View solution > Impure bauxite on reaction with N a O H gives _____. Medium. View solution > In the extraction of aluminum ... Process X: applied for red bauxite to remove iron oxide (chief impurity) Process Y: applied for white bauxite to remove Z (chief impurity). ...
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The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef, the most important ore of aluminium, contains only 3060% aluminium oxide (Al 2 O 3), the rest being a mixture of silica, various iron oxides, and titanium dioxide. The aluminium oxide must be further purified before it can be refined ...
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In the given flow diagram of extraction of a particular metal, which of the following process (es) is/are used. Red bauxite (1) Concentration of ore (2) Oxide ore (3) Impure metal (4) Pure metal. Serpeck's process. Hoope's process.
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3 Answers Sorted by: 3 From this source Baeyer's process: This method is mainly applied when ferric oxide is present as chief impurity. Serpeck's process: This process is used when silica is present in considerable amount of bauxide ore. I couldn't find any information on the efficiency, but I suspect both are efficient in their own way.
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In the extraction of aluminium Process X: applied for red bauxite to remove iron oxide {chief impurity} Process Y: (Serpeck's process) : applied for white bauxite to remove z {chief impurity} then process X and impurity Z are_____. View Solution. Solve.
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Keeping the above characteristics in view, several west coast lateritic bauxite mines of India employ dry crushing−screening process to bring down silica content from the metallurgical grade bauxite [].Recently, a bauxite mine of Guinea known as AGB2A has also adopted the dry beneficiation procedure to cut down silica from about 7% to below 3%, to make this one the best metallurgical grade ...
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