Solvay process

Solvay process
a process for manufacturing sodium carbonate whereby a concentrated solution of sodium chloride is saturated with ammonia, carbon dioxide is passed through it, and the product is calcined.
[1885-90; named after E. SOLVAY]

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Modern method of manufacturing sodium carbonate (soda ash), devised and commercialized in Belgium by Ernest Solvay (1838–1922).

Common salt (sodium chloride) is treated with ammonia and then carbon dioxide, under carefully controlled conditions, to form sodium bicarbonate and ammonium chloride. When heated, the bicarbonate yields sodium carbonate, the desired product; the ammonium chloride is treated with lime to produce ammonia (for reuse) and calcium chloride. The process proved of great commercial value, since large quantities of soda ash are used in making glass, detergents, and cleansers. See also caustic soda.

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Universalium. 2010.

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  • Solvay process — [säl′vā] n. [developed by Ernest Solvay (1838 1922), Belg chemist] a process for making soda (sodium carbonate) by treating common salt (sodium chloride) with ammonia and carbon dioxide …   English World dictionary

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  • Solvay process — /ˈsɒlveɪ ˌproʊsɛs/ (say solvay .prohses) noun a process for manufacturing sodium carbonate from sodium chloride (common salt). It consists essentially of saturating a concentrated solution of sodium chloride with ammonia, and passing carbon… …  

  • Solvay process — noun Etymology: Ernest Solvay died 1922 Belgian chemist Date: 1884 a process for making soda from common salt by passing carbon dioxide into ammoniacal brine resulting in precipitation of sodium bicarbonate which is then calcined to carbonate …   New Collegiate Dictionary

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  • Solvay (company) — This article deals with the company named Solvay. For other meanings see Solvay. Infobox Company company name = Solvay SA company company type = Public foundation = 1863 location = Brussels, Belgium key people = Aloïs Michielsen (Chairman of the… …   Wikipedia

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