Pattinson's process
/ˈpatɪns(ə)nz ˌprəʊsɛs/(also Pattinson process) Metallurgy. Now historical
noun
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.
Origin
Mid 19th century; earliest use found in The North American Review. From genitive of the name of Hugh Lee Pattinson, English metallurgical chemist, who patented the process in 1833 (British Pat. 6497) + process. In some forms from Pattinson + process.
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