Misplaced Pages

Pierre Manhès

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Pierre Manhès" – news · newspapers · books · scholar · JSTOR (January 2017) (Learn how and when to remove this message)
You can help expand this article with text translated from the corresponding article in French. (January 2016) Click for important translation instructions.
  • View a machine-translated version of the French article.
  • Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Misplaced Pages.
  • Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
  • You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Misplaced Pages article at ]; see its history for attribution.
  • You may also add the template {{Translated|fr|Pierre Manhès}} to the talk page.
  • For more guidance, see Misplaced Pages:Translation.
(Learn how and when to remove this message)
Pierre Manhès
Born(1841-07-22)22 July 1841
Lyon
Died4 February 1906(1906-02-04) (aged 64)
Nantua
NationalityFrench
Known forManhès-David process
Scientific career
FieldsCopper extraction techniques
InstitutionsÉguilles

Pierre Manhès (1841 – 1906) was a French metallurgist and businessman, who succeeded in 1880 to adapt the Bessemer process to the pyrometallurgy of the copper. With his engineer Paul David (metallurgist), he developed the Manhès-David process and converter, which were widely adopted, mainly in the United States.

In 1883, under license to use the patented process Franklin Farrel introduced the Manhes-David furnace at the Parrot smelter in Butte, Montana. Its successly adoption was followed by Anaconda at Butte, Copper Queen at Bisbee, Arizona, United Verde, Jerome, Arizona, and other plants by the 1890s. Before the adoption of the process, copper mines in the Western United States produced only matte, which required further, costly purification steps in east coast refineries. The Manhes-David step increased the purity of copper metal produced at the Western mine site, up to 99%, and more with the addition of the electrolysis process by the end of the century. The growing electrical needs for refined copper and its better conductivity was met by the purer metal now (ca. 1900) coming from the mines.

Nowadays, in the beginning of the XXI, Manhès-David process is still in use, to refine 90% of the copper mattes, and 60% of the nickel extracted in the world. But his silica-lined converter has been superseded by the improved Peirce-Smith converter

Categories: