Verfahren zur Entfernung von Aceton aus acetonhaltigen wässrigen Hydrazinlösungen
Aqueous hydrazine solutions containing acetone are concentrated by distillation in stages, the passage of the liquid phase from each stage to the next always being preceded by a holding period in a delay vessel and/or the distillation is carried out using one or more bubble-plate columns, the separa...
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Main Authors | , |
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Format | Patent |
Language | German |
Published |
30.11.1963
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Subjects | |
Online Access | Get full text |
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Abstract | Aqueous hydrazine solutions containing acetone are concentrated by distillation in stages, the passage of the liquid phase from each stage to the next always being preceded by a holding period in a delay vessel and/or the distillation is carried out using one or more bubble-plate columns, the separate plates of which have a charging volume of 10-30 litres for 100 kgs. of charged vapour, each individual plate serving as a delay vessel. In examples, using an apparatus consisting of 5 separating columns each with a diameter of 38 mms. and a height of 200 mms. and a reflux column of the same size, each separating column being followed by a holding or delay vessel with a content of 200 ml. and a feed of 12% hydrazine hydrate and 28% of acetone, a distillate fraction is produced containing 5% of hydrazine hydrate and 86% of acetone, and a sump discharge containing 13.5% of hydrazine hydrate and 17% of acetone. |
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AbstractList | Aqueous hydrazine solutions containing acetone are concentrated by distillation in stages, the passage of the liquid phase from each stage to the next always being preceded by a holding period in a delay vessel and/or the distillation is carried out using one or more bubble-plate columns, the separate plates of which have a charging volume of 10-30 litres for 100 kgs. of charged vapour, each individual plate serving as a delay vessel. In examples, using an apparatus consisting of 5 separating columns each with a diameter of 38 mms. and a height of 200 mms. and a reflux column of the same size, each separating column being followed by a holding or delay vessel with a content of 200 ml. and a feed of 12% hydrazine hydrate and 28% of acetone, a distillate fraction is produced containing 5% of hydrazine hydrate and 86% of acetone, and a sump discharge containing 13.5% of hydrazine hydrate and 17% of acetone. |
Author | RAHLFS,ERICH,DR HENRICH,GUENTER,DR |
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Snippet | Aqueous hydrazine solutions containing acetone are concentrated by distillation in stages, the passage of the liquid phase from each stage to the next always... |
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Title | Verfahren zur Entfernung von Aceton aus acetonhaltigen wässrigen Hydrazinlösungen |
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