Alfred Hutchinson Cowles

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Alfred Hutchinson Cowles (born December 8, 1858 in Cleveland (Ohio) , † August 13, 1929 in Sewaren ) was an American chemist and entrepreneur.

Cowles was the son of publisher Edwin Cowles Jr. (1825-1890, publisher of the Cleveland Leader) and nephew of the Chicago Tribune Alfred Cowles Sr. (1832-1888).

Cowles studied from 1875 at the Ohio Agricultural and Mechanical College (the later Ohio State University ) and from 1877 at Cornell University electrical and chemical engineering.

In 1882 he joined his brother's mining company in Santa Fe and developed a processing method for ores that were difficult to separate in an electric furnace (the ores there contained gold, copper, lead, zinc, and antimony). He received a patent on the process and founded his own company (Electric Smelting and Aluminum Company) in Cleveland in 1884, with which he produced aluminum. When this was displaced by fused- salt electrolysis , it produced silicon carbide , graphite, phosphorus and calcium carbide.

He last discovered the effect of sodium metasilicate as a detergent in 1923 and founded the Cowles Detergent Company.

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