A process formerly used for desilverizing and purifying lead, in which the metal is repeatedly subjected to a cycle of melting, recrystallizing the…
| 单词 | θ209352 |
| 释义 | society > occupation and work > industry > working with specific materials > working with metal > [noun] > refining > refining lead (4) Pattinson's process1852 A process formerly used for desilverizing and purifying lead, in which the metal is repeatedly subjected to a cycle of melting, recrystallizing the… Parkes process1857 A process for extracting silver and gold from molten lead by adding zinc, which forms an alloy with the precious metals that collects on the surface. pattinsonization1870 The removal of silver from lead by Pattinson's process. pattinsonation1881 = pattinsonization, n. |
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