For (i) Baeyer's process; for (ii) Serpeck's process. Iron oxide impurity Baeyer's process: In Baeyer's process, impure bauxite is converted into pure alumina. The conversion process involves mainly three reactions. ... Consider the process for concentration of bauxite. Process 1 : Employed for red bauxite to remove main impurity iron oxide.
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Name the process used for the purification of bauxite. Medium. View solution > Bauxite is purified by: ... 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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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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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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If the content of silicon in bauxite is too high, a large amount of red mud will be formed. The accumulation of red mud will not only cause environmental pollution but also damage the bauxite processing machines. ... A mineral institute in Zhengzhou has used magnetic separation to process bauxite with Al 2 O 3 %, SIO 2 %, A/S, Fe ...
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Step by step video, text image solution for In the extraction of aluminium Process X: employed for red bauxite to remove iron oxide (main impurity) Process Y: (Serpeck's process): used for while bauxite to remove Z (main impurity) then, Select correct option for the process X and impurity Z. by Chemistry experts to help you in doubts scoring excellent marks in Class 12 exams.
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In the extraction of aluminium Process `X:` employed for red bauxite to remove iron oxide (main impurity) Process `Y:` (Serpeck's process): used for while b...
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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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In the Bayer process, the insoluble product generated after bauxite digestion with sodium hydroxide at elevated temperature and pressure to produce alumina is known as red mud' or bauxite residue'. (1) Roughly tons of red mud wastes are generated per ton of aluminum produced.
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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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In the Baeyers process: A. A l 2 O 3 goes into solution as soluble A l (O H) 4 − while other basic oxides as T i O 2 and F e 2 O 3 remain insoluble. l 2 O 3 goes into solution as soluble A l (O H) 4 − while other basic oxides as T i O 2 and F e 2 O 3 remain insoluble.
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Bauxite is the principle ore of aluminum having the chemical name hydrated aluminum oxide with the chemical formula Al 2 O 3. 2 H 2 O. Impurities present in bauxite are iron oxides such as hematite ( Fe 2 O 3) and geothite ( FeHO 2), silicon dioxide SiO 2, the clay mineral kaolinite Al 2 O 3. 2 SiO 2. 2 H 2 O and a small amount of titanium ...
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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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The ore is first concentrated by leaching either by Bayer's process for red bauxite (impurity: FeX2OX3 F e X 2 O X 3) or by Serpeck's process for white bauxite (impurity: SiOX2 S i O X 2 ). Then alumina is reduced electrolytically via HallHéroult's process directly to 99% pure aluminium.
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In the Bayer process, the insoluble residue obtained after digestion of bauxite with sodium hydroxide at elevated temperature and pressure to extract alumina is known as red mud, or bauxite residue. Annual production of smelter and chemical grade alumina in 2015 was about 115 million tonnes produced using the Bayer process.
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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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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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Solution Verified by Toppr Correct option is B) Baeyer's Process is applied for red bauxite to remove iron oxide (chief impurity) Serpeck's process is applied for white bauxite to remove SiO 2 Hence, Option "B" is the correct answer. Was this answer helpful? 0 0 Similar questions The chief impurity present in red bauxite is _____________. Medium
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Solution. To transport the first set of data, use the following method and then schedule a duplicate backup job to start optimized duplication. Back up your data to disk or to tape using Backup Exec or NetBackup. Transport the tape or disk to the destination system (CAS or MMS) On the destination, inventory and catalog the data.
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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_____.
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In such cases Serpeck's process can be preferred in which Silicon can be separated as volatile substance at higher temperature. More. Upvote. VOTE. ... Baeyer's process is used to leach Red Bauxite, which has Fe2O3 as the chief impurity. Serpeck's process, on the other hand, is used to leach White Bauxite, which has Silica as main impurity. ...
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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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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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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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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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