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;Effect of alkali soda concentration on adsorption capacity of roasted alumina dust 从图4可以看出,无论当铝酸钠溶液碱浓度是多少,随着焙烧温度的升高,溶液中有机物的吸附量呈先增大后减小的趋势；其中碱浓度为70 g/L和220 g/L时,这种趋势更明显.图中结果还表明:当焙烧温度小于600 ℃时,碱浓度越高,吸附量也... in the range of 500~800 ℃ for 0.5 h. The alumina dust roasted at 600 ℃ performs the greatest adsorption capacity and adsorption rate. Moreover, the concentration of alkali soda and duration have remarkable......
of diasporic bauxite with high iron content was studied. The results show that 3CaO·2SiO2, and 2CaO·SiO2, are primarily formed in the sintering process when diasporic bauxite is sintered at soda ratio......
of thermodynamic analysis show that bismuth in Bi2S3 can be reduced by carbon to metal Bi and then get into the metal phase, and sulfur can be fixed in ZnS and get in solid slag. By using soda and other......
GmbH Germany, part of Springer Nature 2019 Abstract: Bauxite residue is a highly alkaline material generated from the production of alumina in which bauxite is dissolved in caustic soda. Approximately...- 4000-3. 1 Introduction Bauxite residue, a highly alkaline solid waste, is generated by adding concentrated caustic soda to dissolve bauxite during the alumina production process [1–4]. The global bauxite......
is constant. Under desilication conditions of 190 ℃ and high pressure, MgO has little effect on the desilication rate of CaO, but it can decrease the mass ratio of soda to silica of desilication slag......
and small amount of mullite after thermochemical activation. Meanwhile, diaspore is transformed into α-Al2O3. During the alkali leaching of activated materials, amorphous SiO2 dissolves in the caustic soda......
by the analysis of contact angle, X-ray diffraction and elemental content of scale. The results show that, with the increase of preheating temperature, the contents of alkali soda, silica, alumina and phosphorus......
; 文献标志码:A Extraction of tungsten from simulated autoclave-soda leaching liquor of tungsten ore with quaternary ammonium salt... liquid is produced in the regeneration procedure. Aiming at this problem, the direct extraction of tungsten from simulated autoclave-soda leaching liquor was researched in order to shorten......
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