Global Patent Index - EP 1064248 A1

EP 1064248 A1 2001-01-03 - METHOD FOR CARRYING OUT A BALANCED REACTION

Title (en)

METHOD FOR CARRYING OUT A BALANCED REACTION

Title (de)

VERFAHREN ZUR DURCHFÜHRUNG EINER GLEICHGEWICHTSREAKTION

Title (fr)

PROCEDE DE REALISATION D'UNE REACTION D'EQUILIBRE

Publication

EP 1064248 A1 (DE)

Application

EP 99913234 A

Priority

  • DE 19811451 A
  • EP 9901451 W

Abstract (en)

[origin: WO9947484A1] The invention relates to a method for carrying out a balanced reaction, comprising the following steps: a) a low-boiling educt (E2) which is gaseous in the reaction conditions is guided through a separate, liquid, higher-boiling educt (E1) in a bubble reactor and b) unreacted educt (E2) is conveyed to a membrane module together with the product to be separated (P1), which is also in gaseous form, as feed. Said membrane module is located outside of the reactor and is suitable for vapour permeation. In said membrane module, P1 is separated off as permeate whilst E2 is recovered as retentate and returned to the reactor in a circuit until the desired quantity of educt (E1) has been converted into the target product. The method is characterised in that carbonyl compounds of formula (I) R<1>-(CO)n1-(B)m-(CO)n2-R<2> are used as (E1), B representing an optionally hydroxy- and/or carboxy-substituted alk(en)yl radical with 1 to 12 carbon atoms which is also optionally interrupted by an ether oxygen, a phenyl radical or a carbonyl group, R<1> and R<2> representing hydrogen or a hydroxyl or alkyl radical with 1 to 12 carbon atoms independently of each other or forming a saturated or unsaturated aliphatic C5 or C6 ring together with at least one carbonyl group, said ring being optionally substituted with C1-C4 alkyl and/or hydroxy and the sum of n1 and n2 being either 1 or 2 and m being 0 or 1, and in that aliphatic alcohols with 2 to 8 carbon atoms are used as (E2).

IPC 1-7 (main, further and additional classification)

C07C 67/08; C07C 41/50; C07C 43/303; C07C 43/305; C07C 69/36; C07C 69/60; C07C 69/675; C07C 69/70; C07C 69/704; C07C 69/708; C07C 69/716; C07C 69/72; C07C 69/80

IPC 8 full level (invention and additional information)

C07C 41/50 (2006.01); C07C 67/08 (2006.01)

CPC (invention and additional information)

C07C 67/08 (2013.01); C07C 41/56 (2013.01); C07B 2200/07 (2013.01); C07C 2101/14 (2013.01)

Combination set (CPC)

  1. C07C 41/56 + C07C 43/303
  2. C07C 41/56 + C07C 43/305

Citation (search report)

See references of WO 9947484A1

Designated contracting state (EPC)

DE ES FR IT

EPO simple patent family

WO 9947484 A1 19990923; DE 19811451 C1 19991014; EP 1064248 A1 20010103

INPADOC legal status


2002-05-15 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011002

2001-01-03 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000908

2001-01-03 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR IT