Usage of mother liquor recycling for the obtaining of Fe(VI) compounds

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.101071

Keywords:

obtaining of Fe(VI) compounds, hypochlorite, electrosynthesis, recycling, mother liquor

Abstract

In order to improve the indexes of ferrates(VI) synthesis and reduce production costs of the target product, we studied the recycling features of spent mother liquor. It is shown that the composition of mother liquors depends on the method of obtaining Fe(VI) compounds. Low-temperature salting-out is offered as the main technological decision for recycling. The solubility of K2FeO4 and some ballast salts (KCl, KNO3, K2SO4), which accumulate during the synthesis of ferrate in the mother liquor and when OH− ions are in large excess has been studied. It is shown that the solubility of the target product decreases with increasing concentration of potassium hydroxide and is ~0.7 g/l in 14.3 M KOH at 20 ºС. The influence of temperature and concentration of potassium hydroxide on the solubility of ballast salts has been studied and it is found out that for the effective removal of impurities it is necessary to maintain temperature within the range 0–10 ºС at C (KOH)=14 M.

It has been established that the electrochemical synthesis of crystalline K2FeO4 based on the transpassive dissolution of Fe in the concentrated NaOH solution is impractical, as profitable recycling of the spent mother liquor is practically impossible.

It has been determined that with the hypochlorite method of obtaining ferrates(VI), the least amount of impurities enters the system when FeO(OH) is used as the initial Fe-containing precursor. At the same time, the least amount of ОН− anions is also used for the formation of 1 mole of the target product. Therefore, the recycling of the mother liquor for synthesis based on FeO(OH) is the simplest and the most profitable.

Author Biographies

Dmitriy Golovko, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005

PhD, Associate Professor

Department of Inorganic Substances Technology and Ecology

Igor Golovko, Ukrainian State University of Chemical Technology Gagrina ave., 8, Dnipro, Ukraine, 49005

Assistant

Department of Inorganic Substances Technology and Ecology

Irina Goncharova, Kyiv National University of Trade and Economics Kyoto str., 19, Kyiv, Ukraine, 02156

PhD, Associate Professor

Department of Commodity, Safety and Quality Management

Ludmila Shevchenko, Oles Honchar Dnipro National University Gagarina ave., 72, Dnipro, Ukraine, 49050

PhD, Associate Professor

Department of Physical and Inorganic Chemistry

References

  1. Yates, B. J., Zboril, R., Sharma, V. K. (2014). Engineering aspects of ferrate in water and wastewater treatment – a review. Journal of Environmental Science and Health, Part A, 49 (14), 1603–1614. doi: 10.1080/10934529.2014.950924
  2. Sharma, V. K. (Ed.) (2008). Ferrates: Synthesis, Properties, and Applications in Water and Wastewater Treatment. ACS Symposium series. American Chemical Society, 524. doi: 10.1021/bk-2008-0985
  3. Gan, W., Sharma, V. K., Zhang, X., Yang, L., Yang, X. (2015). Investigation of disinfection byproducts formation in ferrate(VI) pre-oxidation of NOM and its model compounds followed by chlorination. Journal of Hazardous Materials, 292, 197–204. doi: 10.1016/j.jhazmat.2015.02.037
  4. Jiang, J.-Q., Durai, H. B. P., Winzenbacher, R., Petri, M., Seitz, W. (2014). Drinking water treatment byin situgenerated ferrate(VI). Desalination and Water Treatment, 55 (3), 731–739. doi: 10.1080/19443994.2014.938303
  5. Delaude, L., Laszlo, P. (1996). A Novel Oxidizing Reagent Based on Potassium Ferrate(VI)1. The Journal of Organic Chemistry, 61 (18), 6360–6370. doi: 10.1021/jo960633p
  6. Licht, S., Tel-Vered, R., Halperin, L. (2004). Toward Efficient Electrochemical Synthesis of Fe(VI) Ferrate and Super-Iron Battery Compounds. Journal of The Electrochemical Society, 151 (1), A31. doi: 10.1149/1.1630035
  7. Macova, Z., Bouzek, K., Hives, J., Sharma, V. K., Terryn, R. J., Baum, J. C. (2009). Research progress in the electrochemical synthesis of ferrate(VI). Electrochimica Acta, 54 (10), 2673–2683. doi: 10.1016/j.electacta.2008.11.034
  8. Chengchun, J., Chen, L., Shichao, W. (2008). Preparation of Potassium Ferrate by Wet Oxidation Method Using Waste Alkali: Purification and Reuse of Waste Alkali. ACS Symposium Series, 94–101. doi: 10.1021/bk-2008-0985.ch005
  9. Golovko, D. A., Nefedov, V. G., Golovko, I. D., Shevchenko, L. V. (2016). Obtaining of purified solutions of sodium hydroxide for synthesis of ferrates(VI). Technology Audit and Production Reserves, 6 (3 (32)), 17–21. doi: 10.15587/2312-8372.2016.86444
  10. Golovko, D. A. (2015). Effect of chromium compounds on synthesis of alkali metal ferrates (VI). Eastern-European Journal of Enterprise Technologies, 3 (6 (75)), 15. doi: 10.15587/1729-4061.2015.42634
  11. Joo, J., Kim, J., Kim, J. W., Ocon, J. D., Lee, J. K., Chang, W., Lee, J. (2015). Ultrahigh purification in concentrated NaOH by electrowinning for solar cell application. Separation and Purification Technology, 145, 24–28. doi: 10.1016/j.seppur.2015.02.011
  12. Golovko, D. A., Golovko, I. D., Shevchenko, L. V., Goncharova, I. V. (2017). Modernization of ferrate (VI) technology from the iron hydroxides. Technology Audit and Production Reserves, 1 (3 (33)), 4–8. doi: 10.15587/2312-8372.2017.92565
  13. Golovko, D. A., Golovko, I. D. (2015). Effect of manganese compounds on synthesis of ferrates(VI). Technology Audit and Production Reserves, 3 (4 (23)), 69–73. doi: 10.15587/2312-8372.2015.43888
  14. Sharma, V. K., Macova, Z., Bouzek, K., Millero, F. J. (2010). Solubility of Ferrate(VI) in NaOH−KOH Mixtures at Different Temperatures. Journal of Chemical & Engineering Data, 55 (12), 5594–5597. doi: 10.1021/je100417d
  15. Bailie, A. G., Bouzek, K., Lukasek, P., Rousar, I., Wragg, A. A. (1996). Solubility of Potassium Ferrate in 12 M Alkaline Solutions Between 20 °C and 60 °C. Journal of Chemical Technology & Biotechnology, 66 (1), 35–40. doi: 10.1002/(sici)1097-4660(199605)66:1<35::aid-jctb457>3.0.co;2-m
  16. Golovko, D., Sharma, V., Pavlova, O., Belyanovskaya, E., Golovko, I., Suprunovich, V., Zboril, R. (2011). Determination of submillimolar concentration of ferrate(VI) in alkaline solutions by amperometric titration. Open Chemistry, 9 (5). doi: 10.2478/s11532-011-0069-8
  17. Williams, W. J. (1982). Opredelenie anionov. Мoscow: Himiya, 624.

Downloads

Published

2017-06-08

How to Cite

Golovko, D., Golovko, I., Goncharova, I., & Shevchenko, L. (2017). Usage of mother liquor recycling for the obtaining of Fe(VI) compounds. Eastern-European Journal of Enterprise Technologies, 3(6 (87), 55–59. https://doi.org/10.15587/1729-4061.2017.101071

Issue

Vol. 3 No. 6 (87) (2017): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

License

Copyright (c) 2017 Dmitriy Golovko, Igor Golovko, Irina Goncharova, Ludmila Shevchenko

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.