单词 | bayer |
释义 | Bayern. Bayer process n. a process for the production of aluminium from bauxite. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > [noun] > other metalworking processes limation1617 matting1688 sheeting1776 blooming1812 steeling1816 ungraining1839 tarnishing1858 ironing1868 shimming1872 beating1875 siliconizing1880 shearing1881 inoxidizing1883 rustproofing1892 picking1895 rifting1903 Bayer process1910 autofrettage1919 prefinishing1935 panel beating1953 splatting1976 1910 Metall. & Chem. Engin. Aug. 498/1 Two processes are used in France to produce alumina from bauxite. The Bayer process is used at Gardanne, where the ore is attacked under pressure with caustic soda solution. 1911 Metall. & Chem. Engin. Mar. 147/1 The alumina is purified from the bauxite by the Bayer process—solution in caustic soda and precipitation therefrom. 1949 P. C. Carman Chem. Constit. & Prop. Engin. Materials vii. 229 To get pure Al2O3, the Bayer process is used, in which bauxite is treated with 45% NaOH heated to 100 p.s.i. 1956 Nature 10 Mar. 462/2 The purification of the mineral by the Bayer process. This entry has not yet been fully updated (first published 1972; most recently modified version published online January 2018). < n.1910 |
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