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单词 pattinsons process
释义

Pattinson's processn.

Brit. /ˈpatɪns(ə)nz ˌprəʊsɛs/, U.S. /ˈpædəns(ə)nz ˌprɑˌsɛs/
Forms:

α. 1800s– Pattinson's process.

β. 1800s– Pattinson process.

Origin: From proper names, combined with an English element. Etymons: proper name Pattinson , process n.
Etymology: < genitive of the name of Hugh Lee Pattinson (1796–1858), English metallurgical chemist, who patented the process in 1833 ( Brit. Pat. 6497) + process n. In β forms < Pattinson + process n.
Metallurgy. Now historical.
A process formerly used for desilverizing and purifying lead, in which the metal is repeatedly subjected to a cycle of melting, recrystallizing the purer lead, and separating the silver-rich alloy that is still fluid. Cf. Parkes process n.
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with metal > [noun] > refining > refining lead
Pattinson's process1852
Parkes process1857
pattinsonization1870
pattinsonation1881
1852 N. Amer. Rev. Oct. 359 The writer in the Year-Book has to dwell on such things as..‘Pattinson's process for desilvering lead’, in use for more than ten years.
1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 162 Pattinson process, a process in which lead containing silver is passed through a series of melting-kettles, in each of which crystals of a poorer alloy are deposited, while the fluid bath, ladled from one kettle to the next, is proportionately richer in silver.
1912 J. W. Mellor Mod. Inorg. Chem. xxi. 382 Lead can be desilverized by means of Pattinson's or Parkes' process.
1946 Thorpe's Dict. Appl. Chem. (ed. 4) VII. 224/1 The value of the Pattinson process as a means of purifying lead is shown by the fact that lead to be used for white-lead making was frequently Pattinsonized, although the amount of silver present was too small to repay the cost of its recovery.
1964 H. Hodges Artifacts vi. 93 This method of enriching a lead alloy is now known as Pattinson's process.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1852
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