Effects of Strong-Acid on Performances of Copper Solvent Extraction

Abstract:

This paper studied the effect of strong acid---concentrated sulfuric acid---on organic phase physical properties, copper extraction rates as well as phase behaviors in the process of copper solvent extraction. Results demonstrate that with the increase of contact time between organic phase and concentrated sulfuric acid, the organic phase density and viscosity slightly decreased, copper extraction rate linearly decreased from 99.8% to 99.5%, and the average size of organic phase droplet in raffinate cyclically trended to decrease. When the contact time is less than 20 hrs, phase disengagement rate decreased slowly. However, further increasing the contact time the phase disengagement rate decreased rapidly. Organic phase physical properties have little effect on phase disengagement rate.

• Periodical: Advanced Materials Research (Volumes 881-883)
• Pages: 48-51
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.881-883.48
• Online since: January 2014
• Authors: Yan Jun Liu, Xiao Rong Liu*, Hui Li, Qing Li, Yong Sheng Li, Chang Su, Jun Tian, Yu Cheng Wang
• Keywords: Copper Solvent Extraction, Extraction Rate, Phase Disengagement

References

[1] W. Chen. Study on the synthesis of hydroxyoxime extractant Lix63 and its analog's design and synthesis. 2007, 03 (In Chinese).

[2] K.R. Barnard, D.W. Shiers: Hydrometallurgy Vol. 104 (2010), p.268.

[3] S. Vaishnavi J.K. Verma N.S. Shenoy: Miner. Eng. Vol. 23 (2010), p.454.

[4] K.R. Barnard and N.L. Turner: Hydrometallurgy Vol. 109 (2011), p.245.

[5] X.R. Liu, G.Z. Qiu, Y.H. Hu, J.S. Liu and L. Li: Trans. Nonferrous Met. Soc. China, Vol. 10 (2000), p.97.

[6] P.G. Ning H.B. Cao, C.M. Liu, Y.P. Li and Y. Zhang: Hydrometallurgy Vol. 97 (2009) p.131.

[7] R.P. Sperline, Y. Song and H. Freiser: Hydrometallurgy Vol. 50 (1998) p.1.

[8] X.R. Liu, G.Z. Qiu, Y.H. Hu, J. Yang and M.L. Jin: Trans. Nonferrous Met. Soc. China Vol. 13 (2003), p.963.