Global Patent Index - EP 0871527 A4

EP 0871527 A4 2000-03-08 - THERMALLY-MANAGED SEPARATION AND DEWATERING PROCESSES FOR RECOVERING ACID PRODUCTS

Title (en)

THERMALLY-MANAGED SEPARATION AND DEWATERING PROCESSES FOR RECOVERING ACID PRODUCTS

Title (de)

THERMISCH UNTERSTÜTZTE TRENN- UND ENTWÄSSERUNGSVERFAHREN ZUR WIEDERGEWINNUNG VON SÄUREPRODUKTEN

Title (fr)

PROCEDES DE SEPARATION ET DE DESHYDRATATION THERMIQUEMENT ASSISTES POUR LA RECUPERATION DE PRODUITS ACIDES

Publication

EP 0871527 A4 (EN)

Application

EP 96939445 A

Priority

  • US 9616228 W
  • US 499995 P
  • US 1577796 P
  • US 69953296 A

Abstract (en)

[origin: WO9713569A1] Described are preferred processes separating desired chemical products from other compounds in solution utilizing thermally-managed chromatography over solid adsorbents. The preferred processes involve chromatographic principles which are assisted by varying the temperature of operation in separation and elution phases. Also described are processes for treating aqueous acids to dewater and recover the acids in an organic solvent such as an alcohol.

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

B01D 15/08; C07B 63/00; C07C 37/82; C07C 51/47

IPC 8 full level (invention and additional information)

C07D 307/33 (2006.01); B01D 15/00 (2006.01); B01D 15/08 (2006.01); C07B 63/00 (2006.01); C07C 37/82 (2006.01); C07C 39/04 (2006.01); C07C 51/47 (2006.01); C07C 53/08 (2006.01); C07C 59/08 (2006.01); C07C 59/265 (2006.01); C07D 213/79 (2006.01); G01N 30/30 (2006.01)

CPC (invention and additional information)

B01D 15/327 (2013.01); B01D 15/325 (2013.01); C07C 51/47 (2013.01); B01D 2215/022 (2013.01); G01N 30/30 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL SE

EPO simple patent family

WO 9713569 A1 19970417; AU 7662296 A 19970430; BR 9610897 A 20010717; CA 2234070 A1 19970417; CN 1104924 C 20030409; CN 1203535 A 19981230; EP 0871527 A1 19981021; EP 0871527 A4 20000308; JP 2000500430 A 20000118; MX 9802819 A 19980930

INPADOC legal status


2004-03-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030826

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010525

2000-03-08 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000124

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE

1999-06-16 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 6B 01D 15/08 A, 6C 07C 51/47 B, 6C 07C 37/82 B, 6C 07B 63/00 B

1998-10-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980416

1998-10-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB IE IT LI NL SE