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DK9147C
(en)
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Process for the production of nitric acid or nitrogen oxides from atmospheric air.
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DK8961C
(en)
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Apparatus for Oxidation of Air Nitrogen for the Production of Nitric Acid.
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DK7140C
(en)
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Procedure for the production of nitric acid from air.
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ES38122A1
(en)
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A process for making nitric acid or nitrogen oxide from atmospheric air.
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DK5956C
(en)
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Process for the production of nitric acid or nitric acid.
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CA101775A
(en)
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Production of nitric acid from air
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ES37889A1
(en)
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An apparatus for oxidizing azoe from the air to obtain nitric acid.
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DK9975C
(en)
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Procedure for the production of pure nitric acid in commercial concentration.
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DK7689C
(en)
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Process for the production of a nitrogenous substance from air.
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DK12420C
(en)
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Apparatus for the Production of Nitric Acid.
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CH38333A
(en)
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Air gas apparatus
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CH36925A
(en)
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Air gas apparatus
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CH35664A
(en)
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Air gas apparatus
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CH38468A
(en)
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Air gas apparatus
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CH42511A
(en)
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Process for the preparation of pure nitric acid from nitrous gases diluted with air
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CH40882A
(en)
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Device for the oxidation of nitrogen for the purpose of obtaining nitric acid
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ES37564A1
(en)
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Retort improvements for the production of mixed gas and pure distillation gas.
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DK8214C
(en)
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Method of Manufacturing Carbon dioxide.
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DK6897C
(en)
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Procedure for the production of nitrogen compounds from the nitrogen of the air.
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DK8255C
(en)
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Gas Purifier.
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CA101341A
(en)
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Process of concntrating nitric acid
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CA102615A
(en)
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Method of obtaining ammonia from gas
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DK13154C
(en)
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Process for the Extraction of Concentrated Nitrous Gases of Aqueous Nitric Acid.
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AT23234B
(en)
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Process for the preparation of nitric acid.
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DK9922C
(en)
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Apparatus for the production of air gas.
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