| 释义 |
bauxite Min.|ˈbɔːksaɪt|
Also 9 beauxite |ˈbəʊzaɪt|.
[F. bauxite (1821), f. Baux or Beaux, near Arles in France, where found + -ite.]
A hydrous oxide of alumina and iron, used in the manufacture of aluminium.
1861H. Sainte-Claire Deville in Chem. News 9 Nov. 241/1 This substance, obtained from Baux, near Arles, consisted of small round grains buried in a perfectly crystallised pure limestone... I then recognised it as the mineral to which M. Berthier gave the name of Bauxite. It is a hydrate of alumina which M. Dufrénoy has ranked with gibsite, or rather diaspore. 1868Dana Min. 175 The purest beauxite..is called aluminum ore. 1872Jrnl. Chem. Soc. XXV. 467 Bauxite from the Wochein (Austria). 1873in Proc. Amer. Phil. Soc. XIII. 373 The presence of grains of corundum in the beauxite. 1883Ibid. XLIV. 397 The practical value of bauxite depends on the high amount of alumina in proportion to the silica. 1922Blackw. Mag. July 18/2 A pink vein of bauxite ore. 1940Geogr. Jrnl. XCVI. 45 The supply of aluminium is also dependent upon external sources for the bauxite and cryolite from which it is extracted. |