Global patent index - EP 1044167 A1

EP 1044167 A1 2000-10-18 - REMOVAL OF HEAVY METAL IONS FROM AQUEOUS MEDIA

Title (en)

REMOVAL OF HEAVY METAL IONS FROM AQUEOUS MEDIA

Title (de)

ENTFERNUNG VON SCHWERMETALLIONEN AUS WÄSSRIGEN MEDIEN

Title (fr)

ELIMINATION D'IONS DE METAUX LOURDS DE MILIEUX AQUEUX

Publication

EP 1044167 A1 (DE)

Application

EP 98966413 A

Priority

  • DE 19800699 A
  • EP 9808488 W

Abstract (en)

[origin: DE19800699A1] A method for removing heavy metal ions from aqueous media, characterised in that a sulphide precipitation is carried out in the presence of ferric oxide.

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

C02F 1/62

IPC 8 full level (invention and additional information)

C02F 1/02 (2006.01); C02F 1/52 (2006.01); C02F 1/62 (2006.01)

CPC (invention and additional information)

C02F 1/62 (2013.01); C02F 1/025 (2013.01); C02F 1/52 (2013.01); Y10S 210/912 (2013.01); Y10S 210/914 (2013.01)

Citation (search report)

See references of WO 9935094A1

Designated contracting state (EPC)

CH DE FR LI

EPO simple patent family

DE 19800699 A1 19990715; AU 2276499 A 19990726; CN 1285807 A 20010228; EP 1044167 A1 20001018; ID 26830 A 20010215; JP 2002500103 A 20020108; US 6342162 B1 20020129; WO 9935094 A1 19990715

INPADOC legal status

2003-09-03 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030304

2002-01-30 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20011214

2000-10-18 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000810

2000-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE FR LI