PROCESS FOR PREPARING PROPENOXIDE

The invention relates to a process for preparing propeneoxide by chlrination of propene with an aqueous chlorine solution, followed by the saponification of the resulting propylene chlorihydrine with hydrated lime in a saponification column which separates at its top propene oxide vapours, having a...

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Bibliographische Detailangaben
Hauptverfasser: PREOTEASA VERONICA, ROIBU CONSTANTIN, ATANASOAEI IOAN, STRATULA COSTICA, MOLDOVAN NICOLAE, OPREA FLORIN, BEJENARIU IONEL
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a process for preparing propeneoxide by chlrination of propene with an aqueous chlorine solution, followed by the saponification of the resulting propylene chlorihydrine with hydrated lime in a saponification column which separates at its top propene oxide vapours, having a concentration ranging from 40 to 70 %, an absolute power ranging from 1.2 to 2 bars, a temperature ranging from 80 to 100 C and which feeds directly the final distillation column by its own pressure, the reflux from the top of the saponification column being a water discharge. Invenţia se referă la un procedeu de obţinere a propenoxidului, prin reacţia de clorhidrinare a propenei cu o soluţie apoasă de clor, urmată de saponificarea propilenclorhidrinei, astfel rezultată, cu lapte de var, într-o coloană de saponificare care separă, la vârf, vapori de propenoxid, având o concentraţie de 40...70%, presiune absolută de 1,2...2 bar şi temperatura de 80...100°C şi care alimentează, direct, coloana de distilare finală, prin proprie presiune, refluxul de la vârful coloanei de saponificare, fiind constituit dintr-un debit de apă. ŕ