单词 | chlorination |
释义 | chlorinationn. a. Chemistry. Combination, treatment, saturation, etc. with chlorine. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > halogen processes > chlorination chlorination1854 1854 J. Scoffern in Orr's Circle Sci., Chem. 322 Protochloride of iron is a union of chlorine with iron in the first grade of chlorination. b. Mining. The process of extracting gold and silver from certain ores by means of chlorine. ΘΚΠ society > occupation and work > industry > mining > [noun] > other specific mining processes gadding1753 costeaning1778 refinement1815 rope boring1852 piping1869 chlorination1875 opencasting1886 resue1903 resuing1905 biomining1982 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 787 The chlorination-process was originally prepared by Prof. Plattner, and..applied in 1851. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 118 Chlorination process, the process first introduced by Plattner, in which auriferous ores are first roasted to oxidize the base metals, then saturated with chlorine gas, and finally treated with water, which removes the soluble terchloride of gold, to be subsequently precipitated and melted into bars. This entry has not yet been fully updated (first published 1889; most recently modified version published online March 2022). < n.1854 |
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