transitive. Chiefly Metallurgy and Chemistry. To subject (an ore or similar substance) to strong heat in a furnace, in order to remove impurities…
| 单词 | θ209453 |
| 释义 | society > occupation and work > industry > working with specific materials > working with metal > work with metal [verb (transitive)] > extract from ore > other processes (6) roast1582 transitive. Chiefly Metallurgy and Chemistry. To subject (an ore or similar substance) to strong heat in a furnace, in order to remove impurities… excoct1601 transitive. To produce, extract, or obtain (chiefly, a metal) by heat. torrefy1686 Metallurgy. To roast, as ores, in order to deprive of sulphur, arsenic, or other volatile substance. chloridize1870 Mining. ‘To convert into chloride. Applied to the roasting of silver ores with salt, preparatory to amalgamation’ (Raymond Mining Gloss.). chlorinate1875 To act upon or impregnate with chlorine; to convert lime, soda, etc. into the so-called ‘chloride’ (sense 2); to treat gold or silver ore with… flash-roast1951 (see quot. 1958); so flash-roast v. trans. |
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