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Bayer process digestion liquor sintering method crude liquid mixed desilication process

Author: GeZhongMin
Tutor: PengZhiHong；LiHaiMing
School: Central South University
Course: Metallurgical Engineering
Keywords: Bayer process digestion liquor Crude liquid sintering method Mixed desilication
CLC: TF821
Type: Master's thesis
Year: 2005
Downloads: 110
Quote: 1
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Abstract


Of about 70 % of the alumina produced by the process of the hybrid method . Compared with the Bayer process of foreign adoption process has mixed associated long process , energy consumption defects . To this end , this paper presents the process of digestion liquor of the Bayer process and sintering method of crude liquid mixed desilication . The implementation of the process simplifies the mixing process of the associated production of alumina , reduce the power consumption of mixed -linked alumina production process . High pressure digestion under laboratory conditions , an aluminum plant bauxite , respectively, required by the hybrid method and series Law process , the crude liquid sintering method mixed desilication test results show that : Bayer France eluate with the sintering method, the crude liquid was mixed by a certain percentage desilication process is feasible . The high concentration of sodium carbonate sintering process liquid crude is constrained mixed desilication process to implement the key link , the study showed that : to take effective measures to achieve a low - sodium carbonate concentration clinker leaching process desilication process , which is mixed to create the conditions . In order to verify the feasibility of implementation of mixed desilication process under industrial conditions by taking site materials , Bayer process digestion liquor sintering method the crude liquid ratio of 10:0,9:1,8:2,7:3 the the mixed desilication test after desilication the slurry desilication index can meet the production requirement , further confirmed the feasibility of the implementation of Bayer process dissolution liquid and sintering method crude liquid mixed desilication . According to the test conclusion , the paper proposes the implementation of Bayer process dissolution liquid and sintering method crude liquid mixing the desilication process plan and process flow diagram , providing an important reference for the implementation of mixed associated process transformation .

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CLC: > Industrial Technology > Metallurgical Industry > Nonferrous metal smelting > Light metal smelting > Aluminum
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