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J. Cent. South Univ. (2016) 23: 1569-1575 DOI: 10.1007/s11771-016-3210-1 Influence of silicate anions structure on desilication in silicate-bearing sodium aluminate solution LIU Gui-hua(刘桂华), ZHANG...-SS) is much greater than that in the solution by the addition of green liquor (solution-GL), and low alumina concentration in the sodium aluminate solutions facilitates the desilication process......
14000 in desilicated sodium aluminate solution with the addition of hexagonal calcium hydroferrite in deep desilication under the optimum conditions. The saturation coefficient in desilication product can reach 0.46. Key words: desilication; hexagonal calcium hydroferrite; sodium aluminate solution; synthesis 在烧结法生产氧化铝的熟料溶出过程中, 由于原硅酸钙引起二次反应, 使溶出粗液中含有3.0~6.0g/L的二氧化硅, 硅量指数(A/S)仅为20左右, 因此......
·2SiO2·nH2O (DSP). The desilication reaction of aluminate solution containing silicate could contribute partially to forming DSP. Key words: calcium silicate hydrate; aluminate; caustic; reaction...Article ID: 1003-6326(2005)05-1145-05 Behavior of calcium silicate hydrate in aluminate solution LI Xiao-bin(李小斌), ZHAO Zhuo(赵 卓), LIU Gui-hua(刘桂华), ZHOU Qiu-sheng(周秋生), PENG Zhi-hong(彭志宏......
and the particle size distribution of gibbsite during the seed precipitation process from synthetic sodium aluminate solution with different sodium oxalate concentrations were systematically investigated... relation proposed by MISRA [23] for synthetic solutions as follows: CAe=CKexp(6.2106-2486.7/T+1.0876CK/T) (4) where CK is the caustic alkali concentration of sodium aluminate solution......
)3 and sodium aluminate solution is as high as 1.25 N/m, seed is usually added to initiate the precipitation and allow the particle size of the product to be controlled. Under this condition.... PANIAS et al[6-9] confirmed that boehmite can be precipitated at 90 ℃ from supersaturated sodium aluminate solution with 120 g/L Na2O, 132 g/L Al2O3 and 300 g/L initial seed concentration. DASH et al[10......
variation of lithium ion in sodium aluminate solution with addition of synthetic lithium aluminate was investigated. Elevating temperature, increasing caustic soda concentration, reducing alumina... procedure 2.1 Materials A synthetic sodium aluminate solution was prepared with aluminum hydroxide, sodium hydroxide, and deionized water. A synthetic lithium aluminate from Li2CO3 and Al2O3 was used......
Periodical attenuation of Al(OH)3 particles from seed precipitation inseeded sodium aluminate solution WU Yu-sheng(吴玉胜)1, ZHANG Di(张 迪)1, LI Ming-chun(李明春)1, BI Shi-wen(毕诗文)2, YANG Yi-hong... is the Bayer process. Seed precipitation is the key stage which has a significant effect on the yield and specification of product[1-3]. Supersaturated sodium aluminate (NaAlO2) solution is obtained......
Thermodynamic analysis on sodium carbonate decomposition of calcium molybdenum XIA Wen-tang(夏文堂), ZHAO Zhong-wei(赵中伟), LI Hong-gui(李洪桂) School of Metallurgical Science and Engineering, Central...: calcium molybdenum(CaMoO4); sodium carbonate; decomposition; thermodynamic analysis; concentration logarithm diagram  ......
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