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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(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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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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(iii) Lead metal is obtained by the process of smelting which uses carbon as the reducing agent. So, the statement is true. (iv) Serpeck method is used for the purification of white bauxite and not red bauxite. So, the statement is false. Based on the above observations we can conclude that the correct order is TFTF.
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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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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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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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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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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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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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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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Serpeck's process This process is used for the purification of bauxite ore containing silica (SiO2) as the main impurity. The powdered ore is mixed with coke and the mixture is heated at about 1800°C in the presence of Nitrogen gas, when aluminium nitride is formed. Al2O3. 2H2O + 3C + N2 → 2AI N + 3CO+ 2H2O
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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 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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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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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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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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Solution Verified by Toppr Correct option is B) Bayer's process is used for benficiation of red bauxite. Serpeck's process is used for benficiation of white bauxite. Reaction to remove impurity; SiO 2+2C→Si+2CO Video Explanation Was this answer helpful? 0 0 Similar questions
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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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Serpeck's process. D. Hall's process. Medium. Open in App. 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. A ...
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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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3. Bauxite: is main resource of the world's aluminum. is an aluminum ore and is not actually a mineral. is the most abundant element found in the earth's crust, although the word bauxite is used forms most commonly in deeply weathered rocks as a hydrated aluminum oxide ore. formed in residual deposits; at or near the surface under tropical or ...
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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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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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Question: How many gases/vapours are involved either as reactants or products in Serpeck's process used for concentration of bauxite. A complex of potassium, iron and cyanide ions K[Fe(CN) is ionized at 1 molali elevation in boiling points is °C, find out the value of 'x in the complex (Given K. C mol) What will be the nfactor of the reactant in the
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Red Mud by Optimization of the Bauxite Processing Process the use of sodium hydroxide (Bayer process) is the most economical process which is employed for purification of bauxite if it contains considerable amount of Fe 2O 3 [19]. It is responsible for 90% of the world's alumina production from bauxite [20]. It is a high temperature and high ...
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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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Correct options are B), C) and D) Bayer's process: Bauxite ore contains impurities like Fe 2O 3,TiO 2,SiO 2 . When it dissolves in aq. NaOH/pressure + 150°C, bauxite dissolves but the impurities do not.
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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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Correct options are A), B) and C) Bauxite, one of the major ore of aluminium is purified by the three method: Bayer's process. Hall's process. Serpeck's process. Bayer's method and Hall's method is used for the red bauxite which contains Fe 2O 3 and silicates as impurities. Serpeck's method is used for the white bauxite which containes silica ...
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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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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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