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SALPETERSAEURE IND GES GmbH
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SALPETERSAEURE IND GES GmbH
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
23,385. Salpetersõure Industrie-Ges. Nov. 2, 1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Nitric acid.-In the process described in Specificction No. 7871, A.D. 1906, pure nitric acid is obtained by adding water or water-vapour to nitrogenous gases having a minimum temperature of 200‹ C. and cooling the mixture According to the present invention, the mixture is artificially cooled to temperatures below 0‹ C., whereby a concentrated acid is separated.
GB190823385D1907-11-021908-11-02An Improvement in the Process of Manufacturing Nitric Acid from Mixtures of Nitrogenous Gases and Water.
ExpiredGB190823385A
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