Impurities Collection

Bessemer converter in Longwy steelworks, France
A Bessemer converter in the Longwy steelworks, France -- a process designed for the mass production of steel from molten pig iron

Late Roman Iron Age (c. 160-375 A. C. ). Bronze strainer and l
Late Roman Iron Age (c. 160-375 A.C.). Bronze strainer and ladle. From a tomb at Vedskolle. Ny Carlsberg Gyptotek. Copenhagen. Denmark

Bessemer converter in a steelworks
A Bessemer converter in a steelworks -- a process designed for the mass production of steel from molten pig iron, removing impurities by oxidation by blowing air through the molten iron

Natural ruby in marble
From the mines of Mogok in Burma (Myanmar). Ruby is the red variety of the mineral corundum with small impurities of chromium that turn it red

Microdensitometer
The Analytical Research Unit, Harwell, is a service for industry to identify and control impurities in industrial materials : Using a microdensitometer and computer Date: 1973

Wax run down at Llandarcy
The wax run-down at the BP crude oil processing plant at Llandarcy, Swansea, Wales

C16 Alchemists
An alchemist and his assistant heat the substances whose essence will collect in the flasks at the top of the apparatus, shedding impurities as they rise up the column

A Bessemer converter in a German steelworks -- a process designed for the mass production of steel from molten pig iron, removing impurities by oxidation by blowing air through the molten iron

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