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. 1 实验 1.1 实验原料 以某PAC生产厂铝钙粉浸出渣为原料制备沸石,铝钙粉浸出渣(Calcium aluminate leaching residues,简写为CALR),其主要元素含量如表1所列. 表1 铝钙粉浸出渣主要元素含量 Table 1 Main chemical components of CALR (mass fraction...[M]. Beijing: Chemical Industry Press, 2015: 296-300. Preparation of zeolite from calcium aluminate leaching residues and its adsorption properties for zinc metallurgical wastewater PENG Ying-lin1, LI......
J. Cent. South Univ. Technol. (2009) 16: 0768-0773 DOI: 10.1007/s11771-009-0128-x Recycling of industrial waste and performance of steel slag green concrete LI Yun-feng(李云峰)1, 2, YAO Yan(姚 燕...: Workability and mechanical properties of steel slag green concrete with different types of steel slag and different dosages of admixtures were investigated. The effectiveness of steel slag powder......
Viscosity estimation for slags containing calcium fluorideQifeng Shu and Jiayun Zhang Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正>Based on recently published experimental data, the Riboud model was modified for viscosity estimation of the slags containing calcium......
Spectra of sodium aluminate solutions MA Shu-hua(马淑花)1, 2, ZHENG Shi-li(郑诗礼)1, XU Hong-bin(徐红彬)1, ZHANG Yi(张 懿)1 1. Laboratory of Green Process and Engineering, Institute of Process Engineering... aluminate solutions were obtained in the sodium oxide concentration range from 59 to 409 g/L and the caustic ratio range from 1.5 to 4.0 to reveal the structure characteristics of them. It is found......
; 文章编号:1672-7207(2009)02-0275-07 Reactive behaviors of calcium silicate in aluminate solutions LI Xiao-bin, ZHANG Jian, LIU Gui-hua, CHEN Bin, QI Tian-gui (School of Metallurgical Science...·SiO2. Key words: calcium silicate; aluminate solutions; sodium aluminosilicate bydrate; hydrogamet; reactive behavior ......
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铝酸钙夹杂物的生成机制研究王敏1,包燕平1,崔恒1,吴华杰1,李太全1(1.北京市北京科技大学 冶金与生态工程学院)摘 要:运用异质形核理论解释了钢中钙对夹杂物变性的机制过程,计算得出1 873 K下w[Al]s为0.03%时,均质形核生成Al2O3钢中溶解氧的质量分数需达到39.2×10-6,而当反应达到平衡后钢中溶解氧的质量分数为3.3×10-6.脱氧后加入钙靠均质形核很难生成CaO,钙,氧原子主要以Al2O3质点为核心在其表面上生成,生成反应为:[Ca]+(x+1/3)Al2O3=CaO·xAl2O3+2......
-pressure digestion process, Na2TiO3 isolates diaspore from caustic soda so as to inhibit digestion of alumina in the diasporic bauxite. Calcium aluminate hydrate (3CaO·Al2O3·6H2O) is rapidly produced once...; (5) 3) Hydroxy calcium titanate (CaO·2TiO2·H2O) is the product of reaction of Na2TiO3 with calcium aluminate hydrate (3CaO·Al2O3·6H2O) resulting from the reaction of CaO added......
, ZOU Zong-shu. Recovery of iron and calcium aluminate slag from high-ferrous bauxite by high-temperature reduction and smelting process[J]. International Journal of Minerals, Metallurgy, and Materials... and iron and steel industry in China. Based on the new technology of "non-blast furnace to extract iron-calcium aluminate slag to extract aluminum", the effects of pre-reduction temperature, time, C......
the reduction slag is leached with a mixture of sodium hydroxide and sodium carbonate. The main phase of leaching slag is CaCO3. The Al2O3 enters into the leaching solution with soluble sodium aluminate. Aluminum hydroxide with whiteness of over 97% can be obtained after carbonation precipitation. Key words: aluminothermic reduction; calcium aluminate; aluminum oxide; magnesium; dolomite; magnesite......
