Thomson displacement process

Displacement Process (or Thomson s Method) of Manufacture of Nitrocellulose. See under CORDITE in Vol 3, p C538-L... 

PP 378-80 Ref 8, pp 100-02). Method of stabilisation of NC by boiling in w is described in Ref 2, p 183- The yield on dry cotton waste, at Dart-ford Works, was only 160.0% when centrifuges were used w/o acid circulation D. Displacement Process of Thomson, called also Nathan and Thomson s Displacement Process, It has been used since 1905 at Waltham Abbey, England, Most of the British plants manufg NC for use tn Cordite are still using this method. For example, the Cordite plant of Canadian Industries Ltd at Beloeil, near Montreal used this process during WWII. Thomson s nitrators were installed in 1908 at Picatinny Arsenal, but were later re-... 

Abel s method of nitrating cotton was not elegant. The plant was a series of water-cooled cast-iron pots containing mixed acid into which cotton hanks were dipped. J. M. Thomson from Ardeer and his brother came to work at Waltham Abbey and in 1905 devised the displacement process. William MacNab describes the operation ... 

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