Imperial Smelting Corporation

For example, from Imperial Smelting Corporation. 37. Dover Street, London. W.l, or from The ilatheaon Company, East Rutherford, N.J., U.S.A. 

Flicker A process for producing zinc oxide by direct oxidation of zinc vapor. Operated by the Fricker s Metal Company at Luton and Burry Port, UK, in the 1920s and 30s, subsequently acquired by the Imperial Smelting Corporation. Also operated by the Anglo American Corporation, South Africa, after World War II. 

Imperial Smelting A process for simultaneously extracting zinc and lead from sulfide ores, developed and commercialized by the Imperial Smelting Corporation at Avonmouth, UK, after World War II, and now widely used. Based on an invention by L. J. Derham in which the vapors emerging from a reducing kiln are rapidly quenched in a shower of droplets of molten lead. The first trial was made in 1943 but most of the development work was done from 1945 to 1947. Eleven plants were operating in 1973. 

Boron trifluoride is available commercially in cylinders, e.g., from the Imperial Smelting Corporation Ltd., 37 Dover Street, London, W. 1, and from Matheson Company Inc., East Rutherford, N. J., U.S.A. It is advantageous to bubble the gas through 95 per cent, sulphuric acid. Boron trifluoride acetic acid complex, largely BF,.2CH,COOH, containing about 40 per cent. BF is obtainable from Imperial Smelting Corporation Ltd. 

C.F. Harris, J.F. Castle and J. McNish, Vacuum Dezincing , I.S.P. Conference 1967. Imperial Smelting Corporation, London, 1967,852-887. 

Works, Widnes, Lancashire, England. Widnes was a prime location for the manufacture of a product that grew to over a quarter of a milhon tons annually. In 1930 the company was merged with the Imperial Smelting Corporation Ltd, of which Orr was a director until his death in 1933. 

Imperial Smelting A process for simultaneously extracting zinc and lead from sulfide ores, developed and commercialized by the Imperial Smelting Corporation at Avonmouth, United Kingdom, after World War II,... 

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