英语词汇“prill ore”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

1. Metallurgy (originally English regional (Cornwall)). In mining: (a piece of) rich copper ore remaining after separation and removal of low-grade material; more fully prill ore. Also: (a droplet of) copper occurring suspended in the molten slag in the process of smelting copper ore.

ΚΠ

1778 W. Pryce Mineralogia Cornubiensis 263 The reduced Copper, or as it is more usually called by the Cornish assayers, the Prill, will be found beneath the slagg.

1839 H. T. De la Beche Rep. Geol. Cornwall xv. 594 At present the copper-ores..are broken or spalled as before, and divided into pieces of good ore, commonly termed prills.

1845 Mining Jrnl. 22 Nov. 660/2 Pril, a solid piece of virgin metal.

1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 80 Detaching from each piece the inferior portions, and thus forming prill or best dradge ore.

1919 Guide Bk. Prospectors New S. Wales (ed. 2) 41 The Carpathia alone has produced many tons of ‘prill’ ore.

1947 H. Innes Killer Mine iii. 58 They didn't knaw the difference atween prills and dradge most of 'em when the mine was workin' copper.

1982 New Scientist 17 June 774/1 There is now prehistoric evidence of the metallurgical extraction of prill—the production and collection of copper droplets formed in the unwanted slag during the smelting operation.

1991 Sci. Amer. July 65/1 Because the slag remained viscous throughout the smelting process, it trapped prills rather than allowing them to sink to the bottom of the furnace and form ingots.

单词	prill ore
释义	> as lemmas prill ore 1. Metallurgy (originally English regional (Cornwall)). In mining: (a piece of) rich copper ore remaining after separation and removal of low-grade material; more fully prill ore. Also: (a droplet of) copper occurring suspended in the molten slag in the process of smelting copper ore. ΚΠ 1778 W. Pryce Mineralogia Cornubiensis 263 The reduced Copper, or as it is more usually called by the Cornish assayers, the Prill, will be found beneath the slagg. 1839 H. T. De la Beche Rep. Geol. Cornwall xv. 594 At present the copper-ores..are broken or spalled as before, and divided into pieces of good ore, commonly termed prills. 1845 Mining Jrnl. 22 Nov. 660/2 Pril, a solid piece of virgin metal. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 80 Detaching from each piece the inferior portions, and thus forming prill or best dradge ore. 1919 Guide Bk. Prospectors New S. Wales (ed. 2) 41 The Carpathia alone has produced many tons of ‘prill’ ore. 1947 H. Innes Killer Mine iii. 58 They didn't knaw the difference atween prills and dradge most of 'em when the mine was workin' copper. 1982 New Scientist 17 June 774/1 There is now prehistoric evidence of the metallurgical extraction of prill—the production and collection of copper droplets formed in the unwanted slag during the smelting operation. 1991 Sci. Amer. July 65/1 Because the slag remained viscous throughout the smelting process, it trapped prills rather than allowing them to sink to the bottom of the furnace and form ingots. extracted from prilln.⁴ < as lemmas
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