| 单词 | orford process |
| 释义 | > as lemmasOrford process attributive. Designating a method of separating nickel from copper by making use of the difference in the solubilities of their sulphides in molten sodium sulphide. Esp. in Orford process. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > [adjective] > separating or refining processes > of specific metals run-out1812 Orford1895 overpoled1910 1895 Mineral Industry 3 458 The company employed a new process, which may fairly be called the Orford process, and this has been..improved until there is now produced from the Canadian mattes by a fire process metallic nickel which is from 99% to 99.3% pure. 1923 U. R. Evans Metals & Metallic Compounds III. 183 Copper sulphide is soluble in fused sodium sulphide; nickel sulphide is not (the principle of the Orford process). 1967 J. R. Boldt Winning of Nickel 276 Inco completed replacement of the Orford method by the matte separation process at the Copper Cliff smelter in 1948. 1997 Engin. & Mining Jrnl. (Nexis) Jan. (Letters section) 5 Separation of nickel from copper in converter matte was accomplished by the ‘awful Orford’ process. < as lemmas |
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