Bessemer process

Bessemer process

noun Metallurgy.
a process of producing steel, in which impurities are removed by forcing a blast of air through molten iron.

Origin:
1855–60; after H. Bessemer

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World English Dictionary
Bessemer process
 
n
1.  (formerly) a process for producing steel by blowing air through molten pig iron at about 1250°C in a Bessemer converter: silicon, manganese, and phosphorus impurities are removed and the carbon content is controlled
2.  a similar process for removing sulphur and iron from copper matte
 
[C19: named after Sir Henry Bessemer (1813--98), English engineer]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

Bessemer process
process for decarbonizing and desiliconizing pig iron by passing air through the molten metal, 1856, named for engineer and inventor Sir Harry Bessemer (1813-1898) who invented it.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
Bessemer process   (běs'ə-mər)  Pronunciation Key 
A method for making steel by forcing compressed air through molten iron to burn out carbon and other impurities.
The American Heritage® Science Dictionary
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