Dear list,
E L Rhead, Metallurgy, Longmans Green, and Co., 1902, carries the following
entry:
Rozan Process-Pattinsonizing by steam. - This method was introduced by
Messrs. Luce and Rozan, at Marseilles, and has been adopted to some extent.
The novelty consists in the method of stirring up the molten lead by means
of steam at high pressure forced through the lead, the surface being cooled
by water as before. The crystals are not removed, but the liquid enriched
alloy is run off and the crystals remain in the pot. Lead of the same
richness is run in from a melting-pot above, and the operation repeated. A
great saving in labour, fuel, and drosses results.
Hope it helps
Michael Shaw
----- Original Message -----
From: Peter Claughton <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, August 20, 2001 3:28 PM
Subject: Rozan de-silvering process
> A design and interpretation company, currently working on a project
> involving the interpretation of Nenthead lead mine and village in Cumbria,
> are seeking information on the Rozan de-silvering process. The process is
an
> improvement on the Pattinson Process, on which they have sufficient
> information, and they are looking any material either illustrating or
> explaining the process.
>
> Please copy replies to Annie Walsh at "Image Makers"
<[log in to unmask]>
>
> Peter
>
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> Peter Claughton, Blaenpant Morfil, Rosebush, Clynderwen,
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