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41 выделение
с.1) ( назначение в долю) apportionment2) ( обособление) separation3) ( получение в чистом виде) isolationвыделе́ние сигна́ла радио — signal extraction / isolation
4) хим., физ. ( высвобождение) releaseвыделе́ние тепла́ — release / liberation of heat
5) физиол. (выход, истечение) secretion (pl -ns, -ta); ( о продуктах жизнедеятельности) excretion (pl -ta); ( о гное) dischargeгно́йное выделе́ние — pus; matter разг.
6) полигр. setting off, emphasisвыделе́ние те́кста полужи́рным шри́фтом — setting of text in bold (face); text set in bold (face)
7) информ. (фрагмента, объекта на экране монитора) selection, highlighting -
42 Jobard, Jean-Baptiste-Ambroise Marcelin
SUBJECT AREA: Mining and extraction technology[br]b. 14 May 1792 Baissey, Haute-Marne, Franced. 27 October 1861 Brussels, Belgium[br]French technologist, promoter of Belgian industry.[br]After attending schools in Langres and Dijon, Jobard worked in Groningen and Maastricht as a cadastral officer from 1811 onwards. After the Netherlands had been constituted as a new state in 1814, he became a Dutch citizen in 1815 and settled in Brussels. In 1825, when he had learned of the invention of lithography by Alois Senefelder, he retired and established a renowned lithographic workshop in Belgium, with considerable commercial profit. After the political changes which led to the separation of Belgium from the Netherlands in 1830, he devoted his activities to the progress of science and industry in this country, in the traditional idea of enlightenment. His main aim was to promote all branches of the young economy, to which he contributed with ceaseless energy. He cultivated especially the transfer of technology in many articles he wrote on his various journeys, such as to Britain, France, Germany and Switzerland, and he continued to do so when he became the Director of the Museum of Industry in Brussels in 1841, editing its Bulletin until his death. Jobard, as a member of societies for the encouragement of arts and industry in many countries, published on almost any subject and produced many inventions. Being a restless character by nature, and having, in addition, a strong attitude towards designing and constructing, he also contributed to mining technology in 1828 when he was the first European to practise successfully the Chinese method of rope drilling near Brussels.[br]Bibliography1840, Plan d'organisation du Musée de l'industrie, présenté au Ministre de l'interieur, Brussels.1844, Machines à vapeur, arrêtes et instructions, Brussels.1846, Comment la Belgique peut devenir industrielle, à propos de la Société d'exportation, Brussels.considérées comme blason de l'industrie et du commerce, dédié à la Société des inventeurs et protecteurs de l'industrie, Brussels.1855, Discours prononcé à l'assemblée des industriels réunis pour l'adoption de la marque obligatoire, Paris.Further ReadingH.Blémont, 1991, article in Dictionnaire de biographie française, Paris, pp. 676–7 (for a short account of his life).A.Siret, 1888–9, article in Biographie nationale de belgique, Vol. X, Brussels, col. 494– 500 (provides an impressive description of his restless character and a selected bibliography of his many publications.T.Tecklenburg, 1900, Handbuch der Tiefbohrkunde, 2nd edn, Vol. IV, Berlin, pp. 7–8 (contains detailed information on his method of rope drilling).WKBiographical history of technology > Jobard, Jean-Baptiste-Ambroise Marcelin
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43 Stanley, Robert Crooks
[br]b. 1 August 1876 Little Falls, New Jersey, USAd. 12 February 1951 USA[br]American mining engineer and metallurgist, originator of Monel Metal[br]Robert, the son of Thomas and Ada (Crooks) Stanley, helped to finance his early training at the Stevens Institute of Technology, Hoboken, New Jersey, by working as a manual training instructor at Montclair High School. After graduating in mechanical engineering from Stevens in 1899, and as a mining engineer from the Columbia School of Mines in 1901, he accepted a two-year assignment from the S.S.White Dental Company to investigate platinum-bearing alluvial deposits in British Columbia. This introduced him to the International Nickel Company (Inco), which had been established on 29 March 1902 to amalgamate the major mining companies working the newly discovered cupro-nickel deposits at Sudbury, Ontario. Ambrose Monell, President of Inco, appointed Stanley as Assistant Superintendent of its American Nickel Works at Camden, near Philadelphia, in 1903. At the beginning of 1904 Stanley was General Superintendent of the Orford Refinery at Bayonne, New Jersey, where most of the output of the Sudbury mines was treated.Copper and nickel were separated there from the bessemerized matte by the celebrated "tops and bottoms" process introduced thirteen years previously by R.M.Thompson. It soon occurred to Stanley that such a separation was not invariably required and that, by reducing directly the mixed matte, he could obtain a natural cupronickel alloy which would be ductile, corrosion resistant, and no more expensive to produce than pure copper or nickel. His first experiment, on 30 December 1904, was completely successful. A railway wagon full of bessemerized matte, low in iron, was calcined to oxide, reduced to metal with carbon, and finally desulphurized with magnesium. Ingots cast from this alloy were successfully forged to bars which contained 68 per cent nickel, 23 per cent copper and about 1 per cent iron. The new alloy, originally named after Ambrose Monell, was soon renamed Monel to satisfy trademark requirements. A total of 300,000 ft2 (27,870 m2) of this white, corrosion-resistant alloy was used to roof the Pennsylvania Railway Station in New York, and it also found extensive applications in marine work and chemical plant. Stanley greatly increased the output of the Orford Refinery during the First World War, and shortly after becoming President of the company in 1922, he established a new Research and Development Division headed initially by A.J.Wadham and then by Paul D. Merica, who at the US Bureau of Standards had first elucidated the mechanism of age-hardening in alloys. In the mid- 1920s a nickel-ore body of unprecedented size was identified at levels between 2,000 and 3,000 ft (600 and 900 m) below the Frood Mine in Ontario. This property was owned partially by Inco and partially by the Mond Nickel Company. Efficient exploitation required the combined economic resources of both companies. They merged on 1 January 1929, when Mond became part of International Nickel. Stanley remained President of the new company until February 1949 and was Chairman from 1937 until his death.[br]Principal Honours and DistinctionsAmerican Society for Metals Gold Medal. Institute of Metals Platinum Medal 1948.Further ReadingF.B.Howard-White, 1963, Nickel, London: Methuen (a historical review).ASD -
44 separazione per estrazione
[CHIM]Dizionario chimica Italiano-Inglese > separazione per estrazione
См. также в других словарях:
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extraction — [n1] removal from whole; distillation abstraction, derivation, drawing, elicitation, eradication, evocation, evulsion, expression, extirpation, extrication, pulling, separation, taking out, uprooting, withdrawal, wrenching, wresting; concept 211… … New thesaurus
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Separation process — In chemistry and chemical engineering, a separation process, or simply a separation, is any mass transfer process used to convert a mixture of substances into two or more distinct product mixtures, at least one of which is enriched in one or more … Wikipedia
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