Newbery–Vautin chlorination process

The Newbery-Vautin chlorination process is a method for extracting gold from its ore through the use of chlorination. This process was jointly developed by James Cosmo Newbery and Claude Vautin.

Background

The process of extracting and reducing gold from pyrite in gold ores using chlorine gas was initially introduced by Karl Friedrich Plattner around 1848.[1]

Precursor preparation

The Newbery-Vautin process and other processes based on chlorination were replaced by processes based on cyanidation, which used fewer reagents. Processes that are free of cyanide and emit less toxic byproducts have also been developed.[2]

References

Marsden, John; House, Iain (2006). The Chemistry of Gold Extraction, Second Edition. ISBN 9780873352406. Retrieved 2 January 2013.
Liddell, K.S.; Adams, M.D.; Smith, L.A.; Muller, B. (June 2019). "Kell hydromettalurgical extraction of precious and base metals from flotation concentrates - Piloting, engineering, and implementation advances". Journal of the Southern African Institute of Mining and Metallurgy. 119 (6): 585. doi:10.17159/2411-9717/602/2019. S2CID 201080511.

"The Project Gutenberg EBook of Scientific American Supplement, No. 620". 19 November 1887. Retrieved 2 January 2013.

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[1] Marsden, John; House, Iain (2006). The Chemistry of Gold Extraction, Second Edition. ISBN 9780873352406. Retrieved 2 January 2013.

[2] Liddell, K.S.; Adams, M.D.; Smith, L.A.; Muller, B. (June 2019). "Kell hydromettalurgical extraction of precious and base metals from flotation concentrates - Piloting, engineering, and implementation advances". Journal of the Southern African Institute of Mining and Metallurgy. 119 (6): 585. doi:10.17159/2411-9717/602/2019. S2CID 201080511.