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1 Solvay, Ernest
SUBJECT AREA: Chemical technology[br]b. 16 April 1838 Rebcq, near Brussels, Belgiumd. 26 May 1922 Brussels, Belgium[br]Belgian manufacturer, first successfully to produce soda by the ammonia-soda process.[br]From the beginning of the nineteenth century, soda had been manufactured by the Leblanc process. Important though it was, serious drawbacks had shown themselves early on. The worst was the noxious alkali waste left after the extraction of the soda, in such large quantities that two tons of waste were produced for one of soda. The first attempt to work out an alternative process was by the French scientist and engineer A.J. Fresnel, but it failed. The process consisted essentially of passing carbon dioxide into a solution of ammonia in brine (sodium chloride). The product, sodium bicarbonate, could easily be converted to soda by heating. For over half a century, practical difficulties, principally the volatility of the ammonia, dogged the process and a viable solution eluded successive chemists, including James Muspratt and William Deacon.Finally, Ernest Solvay and his brother Alfred tackled the problem, and in 1861 they filed a Belgian patent for improvements, notably the introduction of a carbonating tower, which made the process continuous. The first works were set up at Couillet in 1863, but four further years of hard work were still needed to overcome teething troubles. Once the Solvay ammonia-soda process was working well, it made rapid strides. It was introduced into Britain in 1872 under licence to Ludwig Mond and four years later Solvay opened the large Dombaske works in France.Solvay was a member of the Belgian Senate and a Minister of State. International institutes of physics, chemistry and sociology are named after him.[br]Further ReadingP.Heger and C.Lefebvre, 1919, La vie d'Ernest Solvay.Obituary, 1922, Ind. Eng. Chem.: 1,156.LRD -
2 Solvay
m.Solvay, Ernest Solvay. -
3 Ernest Solvay
s.Ernesto Solvay, Solvay. -
4 Ernesto Solvay
m.Ernest Solvay. -
5 Chemical technology
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6 Mond, Ludwig
SUBJECT AREA: Chemical technology[br]b. 7 March 1839 Cassel, Germanyd. 11 December 1909 London, England[br]German (naturalized English) industrial chemist.[br]Born into a prosperous Jewish merchant family, Mond studied at the Polytechnic in Cassel and then under the distinguished chemists Hermann Kolbe at Marburg and Bunsen at Heidelberg from 1856. In 1859 he began work as an industrial chemist in various works in Germany and Holland. At this time, Mond was pursuing his method for recovering sulphur from the alkali wastes in the Leblanc soda-making process. Mond came to England in 1862 and five years later settled permanently, in partnership with John Hutchinson \& Co. at Widnes, to perfect his process, although complete success eluded him. He became a naturalized British subject in 1880.In 1872 Mond became acquainted with Ernest Solvay, the Belgian chemist who developed the ammonia-soda process which finally supplanted the Leblanc process. Mond negotiated the English patent rights and set up the first ammoniasoda plant in England at Winnington in Cheshire, in partnership with John Brunner. After overcoming many difficulties by incessant hard work, the process became a financial success and in 1881 Brunner, Mond \& Co. was formed, for a time the largest alkali works in the world. In 1926 the company merged with others to form Imperial Chemical Industries Ltd (ICI). The firm was one of the first to adopt the eight-hour day and to provide model dwellings and playing fields for its employees.From 1879 Mond took up the production of ammonia and this led to the Mond producer-gas plant, patented in 1883. The process consisted of passing air and steam over coal and coke at a carefully regulated temperature. Ammonia was generated and, at the same time, so was a cheap and useful producer gas. Mond's major discovery followed the observation in 1889 that carbon monoxide could combine with nickel in its ore at around 60°C to form a gaseous compound, nickel carbonyl. This, on heating to a higher temperature, would then decompose to give pure nickel. Mond followed up this unusual way of producing and purifying a metal and by 1892 had succeeded in setting up a pilot plant to perfect a large-scale process and went on to form the Mond Nickel Company.Apart from being a successful industrialist, Mond was prominent in scientific circles and played a leading role in the setting up of the Society of Chemical Industry in 1881. The success of his operations earned him great wealth, much of which he donated for learned and charitable purposes. He formed a notable collection of pictures which he bequeathed to the National Gallery.[br]Principal Honours and DistinctionsFRS 1891.Bibliography1885, "On the origin of the ammonia-soda process", Journal of the Society of Chemical Industry 4:527–9.1895. "The history of the process of nickel extraction", Journal of the Society of Chemical Industry 14:945–6.Further ReadingJ.M.Cohen, 1956, The Life of Ludwig Mond, London: Methuen. Obituary, 1918, Journal of the Chemical Society 113:318–34.F.C.Donnan, 1939, Ludwig Mond 1839–1909, London (a valuable lecture).LRD
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Solvay, Ernest — (1838 1922) Born at Rebecq Rognon on 16 April 1838, Ernest Solvay showed an early interest in scientific subjects, most especially chemistry, physics, and natural history. Prevented by illness from attending university, he took a position in… … Historical Dictionary of Brussels
Solvay, Ernest — ▪ Belgian chemist born , April 16, 1838, Rebecqu Rognon, near Brussels, Belg. died May 26, 1922, Brussels Belgian industrial chemist, best known for his development of a commercially viable ammonia soda process for producing soda ash… … Universalium
Solvay , Ernest — (1838–1922) Belgian industrial chemist Solvay was born at Rebecq Rognon in Belgium. As the son of a salt refiner and the nephew of a manager of a gas plant, he was introduced at an early age to the techniques and problems of the chemical industry … Scientists
Solvay, Ernest — ► (1838 1922) Industrial y químico belga. Inventó el método Solvay … Enciclopedia Universal
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Solvay — (Ernest) (1838 1922) industriel et philanthrope belge. Il inventa la fabrication industrielle du carbonate de sodium, créa une importante société chimique, fonda des établissements d enseignement scientifique et des associations philanthropiques … Encyclopédie Universelle
Solvay-Kongress — Walther Nernst, Initiator der Solvay Konferenz Solvay Konferenzen ist der Name von internationalen Fachkonferenzen auf dem Gebiet der Physik. Die 23. und vorläufig letzte Solvay Konferenz fand vom 1. bis 3. Dezember 2005 in Brüssel mit dem Thema… … Deutsch Wikipedia
