Italian mining engineer. Marco Chiapponi played a vital role in both the development of El Teniente mine (probably the world’s largest copper deposit) and in the use of the flotation metallurgical process to recover copper minerals from copper sulfide ores.
Chiapponi immigrated to Chile, and met William Braden at a Mining & Metallurgical exposition in Chile in 1894. After this conference, Chiapponi examined some inactive mines in the Andes on behalf of the property owners, the Concha y Torro family. He recommended that they invest in putting in a road to better access the mine and build a concentrator. His clients were unwilling to make such an outlay and were desirous to sell the property. About at the same time, Braden wrote Chiapponi for his feelings on a property in Bolivia. Chiapponi recommended the property he had just examined for the Concha y Torro interests. This led to the development of the El Teniente mine and the formation of Braden Copper Co. Chiapponi also acted as a contractor during the development of the operation.
His last, and perhaps most important act was to suggest to Braden that he send ore samples to Minerals Separation Co. in London to see if their flotation process might be successful. (At this time, copper recovery was less than 50% using state of the art gravity concentration.) Current thinking was that flotation would not be effective on chalcocite, the main ore mineral, which was being lost as slimes. The successful results of the recommendation profoundly affected the entire emerging porphyry copper industry.
Bio (in progress) courtesy of William Hawes, Historian, Mining Foundation of the Southwest.
~~~~~~~~~~~~~~~~~~
Mr. Chiapponi was inducted into the American Mining Hall of Fame as an honoree from Mining's Past on December 3, 2016 in Tucson.
~~~~~~~~~~~~~~~~~
He patented a process for making various items out of copper smelting slag materials in 1914. He married Giuseppina Ragusa Chiapponi in approximately 1898. He visited New York and was recorded on the May 1910 U.S. Census of Hotel Belleclair in Manhattan Borough. He was listed as a mining engineer born in Italy (parents both Italian) and married (12 years). He also visited New York in 1921 and 1927. Per the 1930 English and Wales Probate Calendar, he lived at 200 Rue de Rivoli in Paris, France and (died with a will) at "Salsomaggiore Italy Administration."
Chiapponi immigrated to Chile, and met William Braden at a Mining & Metallurgical exposition in Chile in 1894. After this conference, Chiapponi examined some inactive mines in the Andes on behalf of the property owners, the Concha y Torro family. He recommended that they invest in putting in a road to better access the mine and build a concentrator. His clients were unwilling to make such an outlay and were desirous to sell the property. About at the same time, Braden wrote Chiapponi for his feelings on a property in Bolivia. Chiapponi recommended the property he had just examined for the Concha y Torro interests. This led to the development of the El Teniente mine and the formation of Braden Copper Co. Chiapponi also acted as a contractor during the development of the operation.
His last, and perhaps most important act was to suggest to Braden that he send ore samples to Minerals Separation Co. in London to see if their flotation process might be successful. (At this time, copper recovery was less than 50% using state of the art gravity concentration.) Current thinking was that flotation would not be effective on chalcocite, the main ore mineral, which was being lost as slimes. The successful results of the recommendation profoundly affected the entire emerging porphyry copper industry.
Bio (in progress) courtesy of William Hawes, Historian, Mining Foundation of the Southwest.
~~~~~~~~~~~~~~~~~~
Mr. Chiapponi was inducted into the American Mining Hall of Fame as an honoree from Mining's Past on December 3, 2016 in Tucson.
~~~~~~~~~~~~~~~~~
He patented a process for making various items out of copper smelting slag materials in 1914. He married Giuseppina Ragusa Chiapponi in approximately 1898. He visited New York and was recorded on the May 1910 U.S. Census of Hotel Belleclair in Manhattan Borough. He was listed as a mining engineer born in Italy (parents both Italian) and married (12 years). He also visited New York in 1921 and 1927. Per the 1930 English and Wales Probate Calendar, he lived at 200 Rue de Rivoli in Paris, France and (died with a will) at "Salsomaggiore Italy Administration."
Italian mining engineer. Marco Chiapponi played a vital role in both the development of El Teniente mine (probably the world’s largest copper deposit) and in the use of the flotation metallurgical process to recover copper minerals from copper sulfide ores.
Chiapponi immigrated to Chile, and met William Braden at a Mining & Metallurgical exposition in Chile in 1894. After this conference, Chiapponi examined some inactive mines in the Andes on behalf of the property owners, the Concha y Torro family. He recommended that they invest in putting in a road to better access the mine and build a concentrator. His clients were unwilling to make such an outlay and were desirous to sell the property. About at the same time, Braden wrote Chiapponi for his feelings on a property in Bolivia. Chiapponi recommended the property he had just examined for the Concha y Torro interests. This led to the development of the El Teniente mine and the formation of Braden Copper Co. Chiapponi also acted as a contractor during the development of the operation.
His last, and perhaps most important act was to suggest to Braden that he send ore samples to Minerals Separation Co. in London to see if their flotation process might be successful. (At this time, copper recovery was less than 50% using state of the art gravity concentration.) Current thinking was that flotation would not be effective on chalcocite, the main ore mineral, which was being lost as slimes. The successful results of the recommendation profoundly affected the entire emerging porphyry copper industry.
Bio (in progress) courtesy of William Hawes, Historian, Mining Foundation of the Southwest.
~~~~~~~~~~~~~~~~~~
Mr. Chiapponi was inducted into the American Mining Hall of Fame as an honoree from Mining's Past on December 3, 2016 in Tucson.
~~~~~~~~~~~~~~~~~
He patented a process for making various items out of copper smelting slag materials in 1914. He married Giuseppina Ragusa Chiapponi in approximately 1898. He visited New York and was recorded on the May 1910 U.S. Census of Hotel Belleclair in Manhattan Borough. He was listed as a mining engineer born in Italy (parents both Italian) and married (12 years). He also visited New York in 1921 and 1927. Per the 1930 English and Wales Probate Calendar, he lived at 200 Rue de Rivoli in Paris, France and (died with a will) at "Salsomaggiore Italy Administration."
Chiapponi immigrated to Chile, and met William Braden at a Mining & Metallurgical exposition in Chile in 1894. After this conference, Chiapponi examined some inactive mines in the Andes on behalf of the property owners, the Concha y Torro family. He recommended that they invest in putting in a road to better access the mine and build a concentrator. His clients were unwilling to make such an outlay and were desirous to sell the property. About at the same time, Braden wrote Chiapponi for his feelings on a property in Bolivia. Chiapponi recommended the property he had just examined for the Concha y Torro interests. This led to the development of the El Teniente mine and the formation of Braden Copper Co. Chiapponi also acted as a contractor during the development of the operation.
His last, and perhaps most important act was to suggest to Braden that he send ore samples to Minerals Separation Co. in London to see if their flotation process might be successful. (At this time, copper recovery was less than 50% using state of the art gravity concentration.) Current thinking was that flotation would not be effective on chalcocite, the main ore mineral, which was being lost as slimes. The successful results of the recommendation profoundly affected the entire emerging porphyry copper industry.
Bio (in progress) courtesy of William Hawes, Historian, Mining Foundation of the Southwest.
~~~~~~~~~~~~~~~~~~
Mr. Chiapponi was inducted into the American Mining Hall of Fame as an honoree from Mining's Past on December 3, 2016 in Tucson.
~~~~~~~~~~~~~~~~~
He patented a process for making various items out of copper smelting slag materials in 1914. He married Giuseppina Ragusa Chiapponi in approximately 1898. He visited New York and was recorded on the May 1910 U.S. Census of Hotel Belleclair in Manhattan Borough. He was listed as a mining engineer born in Italy (parents both Italian) and married (12 years). He also visited New York in 1921 and 1927. Per the 1930 English and Wales Probate Calendar, he lived at 200 Rue de Rivoli in Paris, France and (died with a will) at "Salsomaggiore Italy Administration."
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