Factorial (25) design for the extraction of V(IV) in the V(IV)-[SO42-](H+, Na+) ? Cyanex 302-kerosene system

Authors

  • RK Biswas Department of Applied Chemistry and Chemical Engineering, Rajshahi University, Rajshahi-6205
  • AK Karmakar Department of Applied Chemistry and Chemical Engineering, Rajshahi University, Rajshahi-6205

DOI:

https://doi.org/10.3329/bjsir.v51i1.27057

Keywords:

Extraction, Vanadium(IV), Cyanex 302, Kerosene, Sulphate, Factorial design

Abstract

The title system has been investigated from the modeling points of view. Equilibration time is 20 min and the significant extraction occurs above pH 2. Considering the constancy of the organic to aqueous phase ratio (1:1), the factors affecting the extent of extraction (value of log D or log CD) are [V(IV)], pH(eq), [Cyanex 302], [SO42-] and temperature (T). The levels of these factors chosen in experimentation are high (+) and low (-). Regression or model equation for the extraction of vanadium (IV) by Cyanex 302 is determined from 25 full factorial design. On abbreviating log[V(IV)], -log(1+4641.14x10-pH + (1.5x106)x10-2pH), log[Cyanex 302], -log(1+2.24 [SO42-]) and absolute temperatures as M, P, E, S and T, respectively, the model obtained is: log CD = 10.452-0.16M+1.0047P+2.0011E+1.0003S-2425.3729/T. From the regression model it is seen that there is no interaction effect between the factors under investigation. The model can describe the system well.

Bangladesh J. Sci. Ind. Res. 51(1), 47-54, 2016

Downloads

Download data is not yet available.
Abstract
109
PDF
113

Downloads

Published

2016-03-28

How to Cite

Biswas, R., & Karmakar, A. (2016). Factorial (25) design for the extraction of V(IV) in the V(IV)-[SO42-](H+, Na+) ? Cyanex 302-kerosene system. Bangladesh Journal of Scientific and Industrial Research, 51(1), 47–54. https://doi.org/10.3329/bjsir.v51i1.27057

Issue

Vol. 51 No. 1 (2016)

Section

Articles

License

Bangladesh Council of Scientific and Industrial Research (BCSIR) holds the copyright to all contents published in Bangladesh Journal of Scientific and Industrial Research (BJSIR). A copyright transfer form should be signed by the author(s) and be returned to BJSIR.

The entire contents of the BJSIR are protected under Bangladesh Council of Scientific and Industrial Research (BCSIR) copyrights.

Creative Commons Licence
BJSIR is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC) Creative Commons Attribution-NonCommercial 4.0 International License which allows others remix, tweak, and build upon the articles non-commercially, and although their new works must also acknowledge and be non-commercial, they don’t have to license their derivative works on the same terms.