ENERGY-EFFICIENT METHOD FOR PROVIDING A PURIFIED PHOSGENE VAPOUR
The present invention relates to a method for producing purified phosgene vapor, comprising the following steps: 1) providing a gas flow obtainable from the reaction of chlorine with carbon monoxide and comprising phosgene and carbon monoxide; 2) one-stage or multi-stage condensation of the gas flow...
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Format | Patent |
Language | English French German |
Published |
06.05.2020
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Abstract | The present invention relates to a method for producing purified phosgene vapor, comprising the following steps: 1) providing a gas flow obtainable from the reaction of chlorine with carbon monoxide and comprising phosgene and carbon monoxide; 2) one-stage or multi-stage condensation of the gas flow and separation of non-condensable residue gases; 3) one-stage or multi-stage evaporation of the liquid phosgene obtained in step 2) and optional overheating of the produced phosgene vapour, wherein there is an energy integration between one or more of the condensation steps of step 2) and one or more of the evaporation steps in step 3) and the pressure in the last condensation step is between ≥0.2 and ≤6.0 bar higher than in the first evaporation step. |
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AbstractList | The present invention relates to a method for producing purified phosgene vapor, comprising the following steps: 1) providing a gas flow obtainable from the reaction of chlorine with carbon monoxide and comprising phosgene and carbon monoxide; 2) one-stage or multi-stage condensation of the gas flow and separation of non-condensable residue gases; 3) one-stage or multi-stage evaporation of the liquid phosgene obtained in step 2) and optional overheating of the produced phosgene vapour, wherein there is an energy integration between one or more of the condensation steps of step 2) and one or more of the evaporation steps in step 3) and the pressure in the last condensation step is between ≥0.2 and ≤6.0 bar higher than in the first evaporation step. |
Author | JENS, Christian, Morten KOBYLKA, Manfred MORBACH, Jan CARRASCOSA MAS, Maria EHRIG, Martin MERKEL, Michael |
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DocumentTitleAlternate | PROCÉDÉ EFFICACE SUR LE PLAN ÉNERGÉTIQUE POUR PRODUIRE DE LA VAPEUR DE PHOSGÈNE PURIFIÉE ENERGIEEFFIZIENTES VERFAHREN ZUR BEREITSTELLUNG VON GEREINIGTEM PHOSGEN-DAMPF |
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Snippet | The present invention relates to a method for producing purified phosgene vapor, comprising the following steps: 1) providing a gas flow obtainable from the... |
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Title | ENERGY-EFFICIENT METHOD FOR PROVIDING A PURIFIED PHOSGENE VAPOUR |
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