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Hydrometallurgy of non-ferrous, rare and noble elements: problems and prospects
Adsorption
ArticleName Achievements of molecular recognition technology in the hydrometallurgy
ArticleAuthor Izatt S. R., Izatt N. E., Bruening R. L., Dale J. B.
ArticleAuthorData S. R. Izatt, President, General Director, e-mail: sizatt@ibcmrt.com; N. E. Izatt, R. L. Bruening, Dzh. B. Deyl, Employees of IBC Advanced Technologies Inc. Company.
Abstract
Molecular Recognition Technology (MRT) is described together with examples of its application to the commercial separation and recovery of several ions of non-ferrous metals from mixtures with sophisticated contents. Advantages of MRT over traditional separation methods are presented and discussed. MRT is non-ion exchange system that makes use of ligands of pre-determined selectivity that are chemically bonded to solid supports such as silica gel or polymer substrates (SuperLig®). The separations are highly selective, rapid, use minimal floor space, environmentally friendly and do not introduce new contaminants into the process. The examples of MRT using for recovery of metal ions from solutions with different chemical content have been presented. Use of MRT in laboratories for analytical sample pre-treatment is described.
keywords Molecular Recognition Technology, metal ions, selective metal separations via SuperLig® sorbents, metal purification, platinum group metals, transition metals, analytical sample pre-treatment.
References

1. Pedersen C. J. J. Am. Chem. Soc. 1967. Vol. 89, No. 26. pp. 7017–7036.

2. Izatt R. M., Bradshaw J. S., Bruening R. L. Supramolecular Materials and Technologies. New York : John Wiley & Sons, 1999. pp. 225–243.

3. Izatt N. E., Bruening R. L., Krakowiak K. E., Izatt S. R. Ind. Eng. Chem. Res. 2000. Vol. 39, No. 10. pp. 3405–3411.

4. IPMI 2008 Award Winners Announced. Precious Metals News. 2008. Vol. 32, No. 2.

5. Black W. H., Izatt S. R., Dale J. B., Bruening R. L. The Application of Molecular Recognition Technology (MRT) in the Palladium Refining Process at Impala and Other Selected Applications. International Precious Metals Institute 30th Annual Conference. Las Vegas, 2006.

6. Ichiishi S., Izatt S. R., Bruening R. L. and etc. A Commercial MRT Process for the Recovery and Purification of Rhodium from a Refinery Feedstream Containing Platinum Group Metals (PGMs) and Base Metal Contaminants. International Precious Metals Institute 24th Annual Conference. Williamsburg (USA), 2000.

7. Hur K. S., Song Y. S., Dale J. B., Izatt N. E. Commercial MRT Bismuth Removal Plant at LS-Nikko Copper Refinery. EMC-2005, European Metallurgical Conference. Dresden, 2005.

8. Izatt S. R., Dale J. B., Bruening R. L. The Application of Molecular Recognition Technology (MRT) to Refining of Platinum and Ruthenium. International Precious Metals Institute, 31st Annual Conference. Miami, 2007.

9. Gutekunst G., Izatt S. R., Izatt N. E. and etc. The Commercial Application of SuperLig® Molecular Recognition Technology (MRT) Products to Recycling of Potassium Gold Cyanide from Spent Gold Plating Solutions. International Precious Metals Institute, 32nd Annual Conference. Phoenix (USA), 2008.

10. Izatt S. R., Bruening R. L., Izatt N. E., Dale J. B. An Update On the Application of Molecular Recognition Technology (MRT) for Ni/Cu/Co Hydrometallurgical Process Separations and for the Purification of Cobalt Streams. Fifth Southern African Base Metals Conference. Kasane (Botswana), 2009.

11. Kim D., Wang S., Izatt S. R. and etc. A New MRT Application for Bismuth Removal and Recovery. Alta Copper Conference. Perth (Australia), 2006.

12. Bèlanger S., Malone M., Izatt N. E. and etc. Selective Removal of Nickel from Cadmium- and Zinc-Rich Sulphate Electrolyte in the Zinc Industry. Hydrometallurgy 2008. Phoenix (USA), 2008.

13. Tonder G. J. van, Cilliers P. J., Vegter E. M. N. and etc. Molecular Recognition Technology (MRT) Pilot Plant at the Zincor of South Africa Electrolytic Zinc Refinery, Removing Cobalt and Nickel from the Main Purification Impure Solution Stream Without Using Arsenic Trioxide. Cu, Co, Ni and Zn Recovery Conference. Victoria Falls (Zimbabwe), 2001.

14. Izatt S. R., Bruening R. L., Izatt N. E., Dale J. B. Extraction and Recovery of Mercury from Concentrated Sulfuric Acid Streams Using Molecular Recognition Technology. 132nd Annual Meeting, TMS. San Diego (USA), 2003.

15. Izatt S. R., Dale J. B., Izatt N. E., Bruening R. L. An Update of Recent Applications of Molecular Recognition Technology (MRT) in the Copper Industry. Cu 2007, the 6th International Copper/Cobre Conference. Toronto, 2007.

16. Matta V. J. A., Bruening R. L., Dale J. B., Izatt N. E. Control of Chloride with Molecular Recognition Technology at the Codelco Chuquicamata Plant. Alta Copper 99 Conference. Gold Coast (Australia), 1999.

17. Izatt S. R., Dale J. B., Bruening R. L. Examples of Novel Commercial Precious Metal Separations and Recovery Using Molecular Recognition Technology (MRT). Symposium on Precious Metals Processing : Advances in Primary and Secondary Operations. Tucson (USA), 2007.

18. Izatt S. R., Dale J. B., Izatt N. E., Bruening R. L. An Update on the Application of Environmentally Friendly Molecular Recognition Technology (MRT) for Separations in the Mining Industry. Clean Technologies for the World Mining Industry, 8th International Conference. Santiago, 2008.

19. Izatt N. E., Dale J. B., Izatt S. R., Bruening R. L. Extraction and Recovery of Indium and Germanium from Primary and Secondary Hydrometallurgical Streams Using Molecular Recognition Technology. 2006, Sohn International Symposium on Advanced Processing of Metals and Materials : Principles, Technologies and Industrial Practice. San Diego (California), 2006.

20. Izatt S. R., Bruening R. L., Izatt N. E., Dale J. B. The Application of Molecular Recognition Technology (MRT) for Removal of Uranium and Other Significant Impurities Such as Iron and Copper from Uranium Solution Matrices. ALTA 2008, Nickel-Cobalt, Copper and Uranium Conference. Perth (Australia), 2008.

21. Izatt S. R., Bruening R. L., Izatt N. E., Dale J. B. The Application of Molecular Recognition Technology (MRT) in the Nuclear Power Cycle : From Uranium Mining and Refining to Power Plant Waste Separation and Recovery, as well as Element Analysis and Isotope Purification. WM 2009 Conference. Phoenix, 2009.

22. Izatt S. R., Bruening R. L., Krakowiak K. E., Izatt R. M. The Selective Separations of Anions and Cations in Nuclear Waste using Commercially Available Molecular Recognition Technology (MRT) Products. WM 2003 Conference. Tucson (USA), 2003.

23. Kinoshita S., Hasegawa H., Iwasa T. and etc. J. Ecotechnol. Res. 2008. Vol. 14, No. 1. pp. 1–4.

24. Haitori M., Yuichi T., Tadashi S. Jap. Soc. Anal. Chem. 2008. Vol. 57, No. 2. pp. 113–121.

25. Sabarudin A., Lenghor N., Liping Y. and etc. Spectros. Lett. 2006. Vol. 39. pp. 669–682.

26. Yoshiaki F., Izatt S. R., Bruening R. L. and etc. Use of AnaLig® Molecular Recognition Technology (MRT) Products for Analysis of Gold and Platinum Group Metals. International Precious Metals Institute 32nd Annual Conference. Phoenix, 2008.

27. Remenec B. Czech. J. Phys. D. 2006. Vol. 56. pp. D645–D651.

28. Goken G. L., Bruening R. L., Krakowiak K. E., Izatt R. M. Metal-Ion Separation and Preconcentration ; Progress and Opportunities : proc. ACS Symposium Series 716, American Chemical Society. Washington, 1999. pp. 251–259.
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