Gilchrist–Thomas process

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The Gilchrist–Thomas process or Thomas process is a historical process for

The process differs essentially from the Bessemer process in the refractory lining of the converter. The latter, being made of dolomite fired with tar, is basic, whereas the Bessemer lining, made of packed sand, is acidic. Phosphorus, by migrating from iron to slag, allows both the production of a metal of satisfactory quality, and of phosphates sought after as fertilizer, known as "Thomas meal". The disadvantages of the basic process includes larger iron loss and more frequent relining.

After having favored the spectacular growth of the

• Bessemer process

Bibliographic sources

Wikimedia Commons has media related to Thomas converter.

• G. Reginald Bashforth, The manufacture of iron and steel, vol. 2: Steel production, London, Chapman & Hall Ltd, 1951, 461 p.
• Thomas Turner (dir.), The metallurgy of iron: By Thomas Turner...: Being one of a series of treatises on metallurgy written by associates of the Royal school of mines, C. Griffin & company, limited, coll. "Griffin's metallurgical series", 1908, 3rd ed., 463 p.
  ISBN 978-1-177-69287-8
• Walter MacFarlane, The principles and practice of iron and steel manufacture, Longmans, Green, and Co, 1917, 5th ed.
• R.W. Burnie, Memoir and letters of Sidney Gilchrist Thomas, Inventor, John Murray, 1891
• William Tulloch Jeans, The Creators of the Age of Steel, 1884, 356 p.
  ISBN 978-1-4179-5381-3
• Hermann Wedding (translated from German by: William B. Phillips, Ph.D. & Ernst Prochaska), Wedding's basic Bessemer process ["Basische Bessemer - oder Thomas-Process"], New York Scientific Publishing Company, 1891, 224 p.
• Jean Duflot, Encyclopædia Universalis, "Sidérurgie"

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