Effect of Na2SO4 on the Decomposition Rate and Product Size in Seed Precipitation Process

Article Preview

Abstract:

According to working conditions of guizhou alumina plant, the influence of sodium sulfate impurity on the seed precipitation process was studied. The results showed that the seed decomposition rate decreased with the increasing of the sodium sulfate content, and when the additive amount of Na2SO4 was lower, the sodium sulfate can facilitate the agglomeration of aluminium hydroxides, when the additive amount was too high, sodium sulfate can make the granularity of the product fine finally.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

1522-1525

Citation:

Online since:

August 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Feng Qiming, Lu Yiping, etal:Beneficiation Pratctice of Bauxite. Metal mine, (2008)No. 10, P. 1-4, in Chinese

Google Scholar

[2] Wei Xinxin: Research on the utilization of nontraditional bauxite resources including sulfur-containing bauxite and fly ash(MS., Central South University, China 2011), P. 1 , in Chinese

Google Scholar

[3] Deng Yongchun: The effect of inorganic salt impurities on seeded precipitation of sodium aluminate solution(MS., Central South University, China 2009), P. 9-15, in Chinese

Google Scholar

[4] Wang Xihui, Yu Haiyan, Lu dong, etal: The effect of Na2SO4 on seeded precipitation of sodium aluminate solution. Journal of materials and metallurgy, Vol. 6 (2007) No. 3,P. 184-187, in Chinese

Google Scholar

[5] Liu Caimei, Wang Jianli: The effect of Nc and Ns on seeded precipitation of sodium aluminate solution. Light metals, (2000) No.7, P. 22-24, in Chinese

Google Scholar

[6] Xie Shici, Tong Libin: The effect of Na2SO4 on seeded precipitation of sodium aluminate solution. Journal of Shenyang University of Chemical Technology, Vol. 17 (2003) No.1, P. 29- 32, in Chinese

Google Scholar

[7] Misra C,White E T :Kinetics of crystallization of aluminum trihydroxide from seeded caustic aluminum solutions. Chemical engineering programming symposium series(1970), Vol. 53, P. 1024-1029

Google Scholar

[8] J.Addai-Mensah, J.Ralston: The influence of interfacial structuring on Gibbsite interactions in synthetic Bayer Liquors.Colloid and Interface Science, (1999) No. 215, P. 124-130.

DOI: 10.1006/jcis.1999.6237

Google Scholar

[9] J.Addai-Mensah, J.Dawe, et al: The unusual colloid stability of Gibbsite at high pH. Colloid and Interface Science, (1998) No. 203, P. 115-121

DOI: 10.1006/jcis.1998.5482

Google Scholar