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1 теплота восстановления
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2 теплота реакции восстановления
Русско-английский научный словарь > теплота реакции восстановления
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3 натриетермическое восстановление
Русско-английский новый политехнический словарь > натриетермическое восстановление
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4 Deville, Henri Etienne Sainte-Claire
SUBJECT AREA: Metallurgy[br]b. 11 March 1818 St Thomas, Virgin Islandsd. 1 July 1881 Boulogne-sur-Seine, France[br]French chemist and metallurgist, pioneer in the large-scale production of aluminium and other light metals.[br]Deville was the son of a prosperous shipowner with diplomatic duties in the Virgin Islands. With his elder brother Charles, who later became a distinguished physicist, he was sent to Paris to be educated. He took his degree in medicine in 1843, but before that he had shown an interest in chemistry, due particularly to the lectures of Thenard. Two years later, with Thenard's influence, he was appointed Professor of Chemistry at Besançon. In 1851 he was able to return to Paris as Professor at the Ecole Normale Supérieure. He remained there for the rest of his working life, greatly improving the standard of teaching, and his laboratory became one of the great research centres of Europe. His first chemical work had been in organic chemistry, but he then turned to inorganic chemistry, specifically to improve methods of producing the new and little-known metal aluminium. Essentially, the process consisted of forming sodium aluminium trichloride and reducing it with sodium to metallic aluminium. He obtained sodium in sufficient quantity by reducing sodium carbonate with carbon. In 1855 he exhibited specimens of the metal at the Paris Exhibition, and the same year Napoleon III asked to see them, with a view to using it for breastplates for the Army and for spoons and forks for State banquets. With the resulting government support, he set up a pilot plant at Jarvel to develop the process, and then set up a small company, the Société d'Aluminium at Nan terre. This raised the output of this attractive and useful metal, so it could be used more widely than for the jewellery to which it had hitherto been restricted. Large-scale applications, however, had to await the electrolytic process that began to supersede Deville's in the 1890s. Deville extended his sodium reduction method to produce silicon, boron and the light metals magnesium and titanium. His investigations into the metallurgy of platinum revolutionized the industry and led in 1872 to his being asked to make the platinum-iridium (90–10) alloy for the standard kilogram and metre. Deville later carried out important work in high-temperature chemistry. He grieved much at the death of his brother Charles in 1876, and his retirement was forced by declining health in 1880; he did not survive for long.[br]BibliographyDeville published influential books on aluminium and platinum; these and all his publications are listed in the bibliography in the standard biography by J.Gray, 1889, Henri Sainte-Claire Deville: sa vie et ses travaux, Paris.Further ReadingM.Daumas, 1949, "Henri Sainte-Claire Deville et les débuts de l'industrie de l'aluminium", Rev.Hist.Sci 2:352–7.J.C.Chaston, 1981, "Henri Sainte-Claire Deville: his outstanding contributions to the chemistry of the platinum metals", Platinum Metals Review 25:121–8.LRDBiographical history of technology > Deville, Henri Etienne Sainte-Claire
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5 восстановление
1. restitution2. reduction3. regeneration -
6 алюминотермическое восстановление
Русско-английский новый политехнический словарь > алюминотермическое восстановление
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7 восстановление
1. reduction2. restoringРусско-английский новый политехнический словарь > восстановление
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8 натриетермическое восстановление
Metallurgy: sodium reductionУниверсальный русско-английский словарь > натриетермическое восстановление
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9 consommation
consommation [kɔ̃sɔmasjɔ̃]feminine nouna. consumption► de consommation [biens, société] consumer• article or produit de consommation courante or de grande consommation staple* * *kɔ̃sɔmasjɔ̃1) consumptionfaire une grande or grosse consommation de — to use a lot of
2) ( boisson) drink3) ( accomplissement) consummation sout* * *kɔ̃sɔmasjɔ̃ nf1) [énergie, électricité] consumptionconsommation aux 100 km AUTOMOBILES — fuel consumption per 100 km, gas mileage USA
2) ÉCONOMIE, SOCIOLOGIE consumptionde consommation (biens, société) — consumer modif
3) (= boisson) drinkLe billet d'entrée donne droit à une consommation gratuite. — The ticket entitles you to one free drink.
4) DROIT, [acte] consummation* * *consommation nf1 Écon consumption; consommation d'alcool/d'acier alcohol/steel consumption; baisse/relance de la consommation drop/stimulation in consumption; consommation intérieure domestic consumption, home market consumption; consommation des ménages household consumption; pour ma consommation personnelle for my personal use; faire une grande or grosse consommation de to get through ou use a lot of;2 (fait de manger, boire) consumption; ( fait d'utiliser) consommation d'héroïne/de cocaïne heroin/cocain use; la consommation de tabac/d'alcool tobacco/alcohol consumption; limitez la consommation d'aliments riches en matières grasses avoid eating fatty foods; la trop forte consommation de graisses excessive intake of fats; une réduction de la consommation de sodium eating less salt, a reduction in sodium intake;3 Comm ( boisson) drink; régler les consommations to pay for the drinks; jugé pour consommation de cocaïne charged with using cocaine;4 ( accomplissement) consummation sout.[kɔ̃sɔmasjɔ̃] nom féminin1. [absorption - de nourriture] consumption2. [utilisation - de gaz, d'électricité] consumptionelle fait une grande consommation de parfum/papier she goes through a lot of perfume/paper3. ÉCONOMIEbiens/société de consommation consumer goods/society4. AUTOMOBILE5. [au café] drink -
10 Hall, Charles Martin
SUBJECT AREA: Metallurgy[br]b. 6 December 1863 Thompson, Ohio, USAd. 27 December 1914 USA[br]American metallurgist, inventor of the first feasible electrolytic process for the production of aluminium.[br]The son of a Congregationalist minister, Hall was educated at Oberlin College. There he was instructed in chemistry by Professor F.F.Jewett, a former student of the German chemist Friedrich Wöhler, who encouraged Hall to believe that there was a need for a cheap process for the manufacture of aluminium. After graduating in 1885, Hall set to work in his private laboratory exploring the method of fused salt electrolysis. On Wednesday 10 February 1886 he found that alumina dissolved in fused cryolite "like sugar in water", and that the bath so produced was a good conductor of electricity. He contained the solution in a pure graphite crucible which also acted as an efficient cathode, and by 16 February 1886 had produced the first globules of metallic aluminium. With two backers, Hall was able to complete his experiments and establish a small pilot plant in Boston, but they withdrew after the US Patent Examiners reported that Hall's invention had been anticipated by a French patent, filed by Paul Toussaint Héroult in April 1886. Although Hall had not filed until July 1886, he was permitted to testify that his invention had been completed by 16 February 1886 and on 2 April 1889 he was granted a seventeen-year monopoly in the United States. Hall now had the support of Captain A.E. Hunt of the Pittsburgh Testing Institute who provided the capital for establishing the Pittsburgh Reduction Company, which by 1889 was selling aluminium at $1 per pound compared to the $15 for sodium-reduced aluminium. Further capital was provided by the banker Andrew Mellon (1855–1937). Hall then turned his attention to Britain and began negotiations with Johnson Matthey, who provided land on a site at Patricroft near Manchester. Here the Aluminium Syndicate, owned by the Pittsburgh Reduction Company, began to produce aluminium in July 1890. By this time the validity of Hall's patent was being strongly contested by Héroult and also by the Cowles brothers, who attempted to operate the Hall process in the United States. Hall successfully sued them for infringement, and was confirmed in his patent rights by the celebrated ruling in 1893 of William Howard Taft, subsequently President of the USA. In 1895 Hall's company changed its name to the Pittsburgh Aluminium Company and moved to Niagara Falls, where cheap electrical power was available. In 1903 a legal compromise ended the litigation between the Hall and Héroult organizations. The American rights in the invention were awarded to Hall, and the European to Héroult. The Pittsburgh Aluminium Company became the Aluminium Company of America on 1 January 1907. On his death he left his estate, worth about $45 million, for the advancement of education.[br]Principal Honours and DistinctionsChemical Society, London, Perkin Medal 1911.Further ReadingH.N.Holmes, 1930, "The story of aluminium", Journal of Chemical Education. E.F.Smith, 1914, Chemistry in America.ASD -
11 Héroult, Paul Louis Toussaint
SUBJECT AREA: Metallurgy[br]b. 1863 Thury-Harcourt, Caen, Franced. 9 May 1914 Antibes, France[br]French metallurigst, inventor of the process of aluminium reduction by electrolysis.[br]Paul Héroult, the son of a tanner, at the age of 16, while still at school in Caen, read Deville's book on aluminium and became obsessed with the idea of developing a cheap way of producing this metal. After his family moved to Gentillysur-Bièvre he studied at the Ecole Sainte-Barbe in Paris and then returned to Caen to work in the laboratory of his father's tannery. His first patent, filed in February and granted on 23 April 1886, described an invention almost identical to that of C.M. Hall: "the electrolysis of alumina dissolved in molten cryolite into which the current is introduced through suitable electrodes. The cryolite is not consumed." Early in 1887 Héroult attempted to obtain the support of Alfred Rangod Pechiney, the proprietor of the works at Salindres where Deville's process for making sodium-reduced aluminium was still being operated. Pechiney persuaded Héroult to modify his electrolytic process by using a cathode of molten copper, thus making it possible produce aluminium bronze rather than pure aluminium. Héroult then approached the Swiss firm J.G.Nehe Söhne, ironmasters, whose works at the Falls of Schaffhausen obtained power from the Rhine. They were looking for a new metallurgical process requiring large quantities of cheap hydroelectric power and Héroult's process seemed suitable. In 1887 they established the Société Metallurgique Suisse to test Héroult's process. Héroult became Technical Director and went to the USA to defend his patents against those of Hall. During his absence the Schaffhausen trials were successfully completed, and on 18 November 1888 the Société Metallurgique combined with the German AEG group, Oerlikon and Escher Wyss, to establish the Aluminium Industrie Aktiengesellschaft Neuhausen. In the early electrolytic baths it was occasionally found that arcs between the bath surface and electrode could develop if the electrodes were inadvertently raised. From this observation, Héroult and M.Killiani developed the electric arc furnace. In this, arcs were intentionally formed between the surface of the charge and several electrodes, each connected to a different pole of the AC supply. This furnace, the prototype of the modern electric steel furnace, was first used for the direct reduction of iron ore at La Praz in 1903. This work was undertaken for the Canadian Government, for whom Héroult subsequently designed a 5,000-amp single-phase furnace which was installed and tested at Sault-Sainte-Marie in Ontario and successfully used for smelting magnetite ore.[br]Further ReadingAluminium Industrie Aktiengesellschaft Neuhausen, 1938, The History of the Aluminium-Industrie-Aktien-Gesellschaft Neuhausen 1888–1938, 2 vols, Neuhausen.C.J.Gignoux, Histoire d'une entreprise française. "The Hall-Héroult affair", 1961, Metal Bulletin (14 April):1–4.ASDBiographical history of technology > Héroult, Paul Louis Toussaint
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12 спорное дело
Спорное дело-- The precise shape of the optimum frequency weightings is a matter of controversy. Спорить - to argue (доказывать); to debate (обсуждать); to dispute (ставить под сомнение) Способ - method, approach, manner, way, recipe (метод); means, measure (средство); procedure (методика); method, process, mode (как объект патентования)Such a method of fuel ignition provides a means of extremely rapid fuel evaporation by heat supplied from the adjacent flame, due to centrifugal force effects.Returning to the first means of eliminating lead-lag, we note that pressure drop across the adjustable orifices will also vary with changing fluid viscosity.This recipe for modeling is simple.In practicing the process outlined above, the starting compound allopregnane-3b-ol-20-one (I) is conventionally treated with hydroxylamine hydrochloride affording the corresponding oxime (II) which upon reduction with sodium ethanol furnishes 20b-amino-allopregnane-3b-ol (III).Русско-английский научно-технический словарь переводчика > спорное дело
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13 оксид азота
оксид азота
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
nitrogen monoxide
A colourless gas, soluble in water, ethanol and ether. It is formed in many reactions involving the reduction of nitric acid, but more convenient reactions for the preparation of reasonably pure NO are reactions of sodium nitrite, sulphuric acid, etc. (Source: DICCHE)
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Русско-английский словарь нормативно-технической терминологии > оксид азота
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