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1. WO2004009572 - METHOD FOR THE CONTINUOUS INTERMEDIATE SEPARATION OF THE SOLVENT USED IN THE OXIRANE SYNTHESIS WITH NO COUPLING PRODUCT

Publication Number WO/2004/009572
Publication Date 29.01.2004
International Application No. PCT/EP2003/007990
International Filing Date 22.07.2003
Chapter 2 Demand Filed 20.02.2004
IPC
B01D 3/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation
B01D 3/42 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
42Regulation; Control
C07D 301/32 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
301Preparation of oxiranes
32Separation; Purification
CPC
B01D 3/141
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation ; or use of a fractionation or rectification column
141where at least one distillation column contains at least one dividing wall
B01D 3/146
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation ; or use of a fractionation or rectification column
143by two or more of a fractionation, separation or rectification step
146Multiple effect distillation
B01D 3/4222
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
42Regulation; Control
4211of columns
4222Head- and side stream
C07D 301/32
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
301Preparation of oxiranes
32Separation; Purification
Applicants
  • BASF AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • BASSLER, Peter [DE]/[DE] (UsOnly)
  • GÖBBEL, Hans-Georg [DE]/[DE] (UsOnly)
  • TELES, Joaquim, Henrique [PT]/[DE] (UsOnly)
  • RUDOLF, Peter [DE]/[DE] (UsOnly)
Inventors
  • BASSLER, Peter
  • GÖBBEL, Hans-Georg
  • TELES, Joaquim, Henrique
  • RUDOLF, Peter
Agents
  • ISENBRUCK, Günter
Priority Data
102 33 381.523.07.2002DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR KONTINUIERLICH BETRIEBENEN DESTILLATION DES BEI DER KOPPELPRODUKTFREIEN OXIRANSYNTHESE VERWENDENTEN LÖSUNGSMITTELS
(EN) METHOD FOR THE CONTINUOUS INTERMEDIATE SEPARATION OF THE SOLVENT USED IN THE OXIRANE SYNTHESIS WITH NO COUPLING PRODUCT
(FR) PROCEDE DE DISTILLATION GUIDEE EN CONTINU DU SOLVANT EMPLOYE LORS DE LA SYNTHESE D'OXIRANE EXEMPTE DE PRODUITS DE COUPLAGE
Abstract
(DE)
Verfahren zur kontinuierlich betriebenen Destillation des bei der Oxiransynthese durch Umsetzung eines Hydroperoxids mit einer organischen Verbindung verwendeten Lösungsmittels, dadurch gekennzeichnet, dass das bei der Synthese und anschlissender Aufarbeitung anfallende Gemisch, das das Lösungsmittel enthält, in einer Trennwandkolonne in eine Leichtsiederfraktion, in eine Mittelsiederfraktion und eine Schwersiederfraktion aufgetrennt und das Lösungsmittel als Mittelsiederfraktion aus dem Seitenabzug der Kolonne entnommen wird.
(EN)
The invention relates to a method for the continuous distillation of the solvent used in oxirane synthesis by reaction of a hydroperoxide with an organic compound, characterised in that the mixture arising after the synthesis and subsequent working up, which comprises the solvent, is separated in a partition-wall column into a low-, middle- and high-boiling fraction and the solvent drawn off as middle-boiling fraction from the side tap of the column.
(FR)
L'invention concerne un procédé de distillation guidé en continu du solvant employé lors de la synthèse d'oxirane, par réaction d'un hydropéroxyde et d'un composé organique. Le procédé selon l'invention est caractérisé en ce que le mélange produit lors de la synthèse et du traitement consécutif, contenant le solvant, est séparé dans une colonne à membrane, en une fraction à point d'ébullition bas, une fraction à point d'ébullition moyen, et une fraction à point d'ébullition élevé, et le solvant est prélevé en tant que fraction à point d'ébullition moyen sur la zone d'extraction latérale de la colonne.
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