Abstract
Preparative Continuous Annular Chromatography, or P-CAC , is an innovative separation technology, a unique approach to high-performance chromatography for the separation of PGM component mixtures from solutions. P-CAC consists of inlet/distribution head and outer/inner cylinders, and bottom plate/fraction-collection as well. P-CAC has been applied in biotechnological and pharmaceutical downstream processing. This was the first time to explore an efficient PGM separation and recovery at the Copper Refinery. Laboratory trials with using a chloride solution for raffination for PGM are described and the tests results are presented in this paper.
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Acknowledgements
Sixty-seven years has passed since the first concept of a rotating annular chromatograph for industrial applications was suggested by Nobel Prize winner A.V.P. Martin in 1949. In his paper [5], Martin wrote “Chromatography can also be a continuous process, provided that the developing solvent returns the adsorbent to its initial state within a reasonable period. Imaging the chromatogram to be packed within a narrow space between two concentric cylinders. The upper surface of the chromatogram is flooded with solvent and at one point the solution to be separated is fed on slowly. The annular chromatogram is slowly and uniformly rotated with the result that different zones will form helices of characteristic angle which can be collected at various fixed points around the bottom of the chromatogram”.
It will be amazing to list all scientists and engineers and their efforts, of cause including all failures, to develop the P-CAC to date. The authors are very grateful to Drs. A. Prior and Y. Shang of PRIOR TECHNOLOGY GMBH for their technical support, which helped completing the first P-CAC industrial trial on PGM separation and made Dr. Martin and the other pioneers’ dream come true.
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© 2017 The Minerals, Metals & Materials Society
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Wang, S., Morris, T. (2017). P-CAC, a Unique Separation Technology for PGM Recovery. In: Wang, S., Free, M., Alam, S., Zhang, M., Taylor, P. (eds) Applications of Process Engineering Principles in Materials Processing, Energy and Environmental Technologies. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51091-0_12
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DOI: https://doi.org/10.1007/978-3-319-51091-0_12
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