Global Patent Index - EP 1073612 A1

EP 1073612 A1 2001-02-07 - WATER TREATMENT PROCESS

Title (en)

WATER TREATMENT PROCESS

Title (de)

VERFAHREN FÜR DIE WASSERAUFBEREITUNG

Title (fr)

PROCEDE DE TRAITEMENT DE L'EAU

Publication

EP 1073612 A1 (EN)

Application

EP 98950233 A

Priority

  • GB 9803251 W
  • GB 9723253 A

Abstract (en)

[origin: WO9923034A1] A method for removing contaminants from water and for producing water with a low level of dissolved substances, e.g. salt in sea-water comprises passing the water through a zeolite membrane which has been treated with silicic acid or an alkyl silicate, the method enables a high flux of water with very low level of contaminants.

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

C02F 1/44

IPC 8 full level (invention and additional information)

B01D 71/02 (2006.01); C01B 39/00 (2006.01); C02F 1/44 (2006.01)

CPC (invention and additional information)

B01D 67/0051 (2013.01); B01D 67/0093 (2013.01); B01D 71/028 (2013.01); C02F 1/44 (2013.01); B01D 2323/30 (2013.01); C02F 1/441 (2013.01); C02F 1/448 (2013.01)

Citation (search report)

See references of WO 9923034A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9923034 A1 19990514; AU 9638698 A 19990524; CA 2306847 A1 19990514; CN 1278235 A 20001227; EP 1073612 A1 20010207; GB 9723253 D0 19980107; JP 2001521823 A 20011113

INPADOC legal status


2001-12-12 [18W] WITHDRAWN

- Date of withdrawal: 20011010

2001-02-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000417

2001-02-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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