| 释义 |
Orford|ˈɔːfəd|
The name of the Orford Copper Company of New Jersey, U.S.A., used attrib. to designate a process it developed for separating nickel from copper by making use of the difference in the solubilities of their sulphides in molten sodium sulphide.
1895Mineral Industry III. 458 The Orford Copper Company was employed some time ago by the United States Navy Department to separate copper from nickel in a large quantity of Canadian matte purchased by the department, and to deliver nickel in the form of an oxide for use in alloying steel. In order to do this the company employed a new process, which may fairly be called the Orford process, and this has been from time to time improved until there is now produced from the Canadian mattes by a fire process metallic nickel which is from 99% to 99·3% pure. 1923U. 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). 1967J. 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. |