Global Patent Index - EP 1239934 A1

EP 1239934 A1 2002-09-18 - DEVICE AND METHOD FOR SEPARATION OF LIQUID HAZARDOUS WASTE

Title (en)

DEVICE AND METHOD FOR SEPARATION OF LIQUID HAZARDOUS WASTE

Title (de)

VORRIHTUNG UND VERFAHREN ZUR ABTRENNUNG VON GEFÄHRLICHEN FLÜSSIGEN ABFÄLLEN

Title (fr)

DISPOSITIF ET PROCEDE DE SEPARATION DE RESIDUS LIQUIDES DANGEREUX

Publication

EP 1239934 A1 (EN)

Application

EP 00975018 A

Priority

  • NO 0000380 W
  • NO 995497 A

Abstract (en)

[origin: WO0134266A1] A method, of separating oil, water and solids from oily feeds in the form of emulsions and muds is described, in which the feed has first been conditioned through pH regulation in a known manner in order to destabilise it, where the feed is first heated by being passed through an externally heated pipe. The heated feed is then led into a vacuum tank partially filled with feed that is undergoing final treatment in the form of settling, where there is a vapour pocket at the top of the tank, and where the pressure in the vacuum tank is lower than atmospheric pressure. Vapourised liquid is extracted from the vapour pocket, liquefied and treated further, while solids are allowed to settle before being removed from the bottom of the vacuum tank for further treatment, and liquid is extracted from the liquid phase for further treatment. A device for implementing the method is also described.

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

B01D 3/10; B01D 21/00; C10G 3/00; C10G 7/06; E21B 43/34

IPC 8 full level (invention and additional information)

B01D 3/10 (2006.01); B01D 17/00 (2006.01); B01D 21/00 (2006.01); C10G 7/06 (2006.01); C10G 31/06 (2006.01); C10G 33/00 (2006.01); E21B 21/06 (2006.01)

CPC (invention and additional information)

C10G 33/00 (2013.01); B01D 3/10 (2013.01); B01D 17/00 (2013.01); B01D 17/0208 (2013.01); B01D 17/042 (2013.01); B01D 17/044 (2013.01); B01D 17/048 (2013.01); B01D 21/009 (2013.01); B01D 21/2427 (2013.01); B01D 21/2488 (2013.01); C10G 7/06 (2013.01); C10G 31/06 (2013.01); E21B 21/068 (2013.01); B01D 2221/04 (2013.01)

Citation (search report)

See references of WO 0134266A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 0134266 A1 20010517; AU 1312601 A 20010606; EP 1239934 A1 20020918; NO 310546 B1 20010723; NO 995497 A 20010511; NO 995497 D0 19991110

INPADOC legal status


2004-07-28 [18W] APPLICATION WITHDRAWN

- Effective date: 20040605

2002-10-02 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: MARTINSEN, HAROLD, ARNE

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020610

2002-09-18 [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

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI