Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Compagnie de Construction Mecanique Sulzer
Air Liquide SA
Orkem SA
Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
Original Assignee
Sulzer AG
Chimique des Charbonnages SA
Commissariat a lEnergie Atomique CEA
Compagnie de Construction Mecanique Sulzer
Air Liquide SA
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Filing date
Publication date
Application filed by Sulzer AG, Chimique des Charbonnages SA, Commissariat a lEnergie Atomique CEA, Compagnie de Construction Mecanique Sulzer, Air Liquide SAfiledCriticalSulzer AG
Priority to FR7002331ApriorityCriticalpatent/FR2074737A6/en
Application grantedgrantedCritical
Publication of FR2074737A6publicationCriticalpatent/FR2074737A6/en
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B5/00—Water
C01B5/02—Heavy water; Preparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND3 + 7O2 ---> 4NO2 + 6D2O, 2D2 + O2 ---> 2D2O
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Chemical & Material Sciences
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Organic Chemistry
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Chemical Kinetics & Catalysis
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Inorganic Chemistry
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Oxygen, Ozone, And Oxides In General
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Abstract
Heavy water is prepd using isotopic exchange between N2/H2 mixtures and liquid ammonia. The synthesis gas (N2+3H2) passes through the exchange column to a synthesizer in which about 1/5 is converted to NH3 and returned to the column. The remainder is converted to NH3 in a separate synthesizer. This increases the deuterium content from 24.5 to 32 ppm and avoids the accumulation of inert gases. The drawings of the parent patent which were omitted are included.
FR7002331A1970-01-221970-01-22Deuterium enrichment of ammonia - for heavy water prodn
ExpiredFR2074737A6
(en)