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Thomas Twynam
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5184. Twynam, T. Feb. 28. [Cognate Application, 9124/14.] Slags, treatment of.-Finely-ground basic phosphatic slag is treated with a restricted amount of nitric acid insufficient to act upon the iron compounds or to cause the formation of any notable amount of. gelatinous silica. The nitric acid is preferably obtained from the air by an electric-arc process: After, drying, 'the deliquescent mass which is obtained may be converted into a dry condition by adding potassium, ammonium, or sodium sulphate. Specifications 11,873/02, [Class 1, Acids, alkalies, &c.] and 5586/10, [Class 111, Sewage &c.], are referred to.
GB191405184D1914-02-281914-02-28Improvements in Artificial Manures and Fertilizers.
ExpiredGB191405184A
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