Global Patent Index - EP 0989965 A1

EP 0989965 A1 2000-04-05 - ENCAPSULATION OF HAZARDOUS WASTE MATERIALS

Title (en)

ENCAPSULATION OF HAZARDOUS WASTE MATERIALS

Title (de)

EINKAPSELN VON GEFÄHRLICHEN ABFÄLLEN

Title (fr)

ENCAPSULATION DE DECHETS DANGEREUX

Publication

EP 0989965 A1 (EN)

Application

EP 98923926 A

Priority

  • AU 9800408 W
  • AU PO705597 A
  • AU PO926997 A
  • AU PO927097 A
  • AU PO315898 A

Abstract (en)

[origin: KR20060009393A] A method of encapsulating hazardous waste materials including heavy metals such as arsenic, mercury, nickel and chromium residues, as well as radioactive materials. The method involves adding the hazardous waste material to a settable composition, forming a slurry, and allowing the slurry to set to encapsulate the waste material. The settable composition is a powdered flowable cement composition containing calcium carbonate and a caustic magnesium oxide. Tests conducted on the encapsulated material indicate that virtually none of the hazardous waste material is leached out of the set composition which has a concrete-like appearance.

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

C04B 18/04

IPC 8 full level (invention and additional information)

A62D 3/33 (2007.01); C04B 18/04 (2006.01); C04B 28/10 (2006.01); B09B 3/00 (2006.01); G21F 9/34 (2006.01)

IPC 8 main group level (invention and additional information)

C04B (2006.01)

CPC (invention and additional information)

A62D 3/33 (2013.01); B09B 3/0025 (2013.01); C04B 28/105 (2013.01); A62D 2101/24 (2013.01); A62D 2101/43 (2013.01); A62D 2203/02 (2013.01); C04B 2103/0067 (2013.01); Y02W 30/91 (2015.05)

Combination set (CPC)

  1. C04B 28/105 + C04B 18/0463 + C04B 22/124 + C04B 22/142 + C04B 22/148 + C04B 24/06
  2. C04B 28/105 + C04B 14/28 + C04B 18/0472 + C04B 22/066 + C04B 22/124 + C04B 22/142 + C04B 22/148 + C04B 24/06

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

EP 0989965 A1 20000405; EP 0989965 A4 20001102; IL 133161 D0 20010319; KR 100768263 B1 20071018; KR 20060009393 A 20060131; TW 503226 B 20020921

INPADOC legal status


2006-05-03 [18R] REFUSED

- Effective date: 20051108

2002-07-31 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020612

2001-02-28 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: DOLOMATRIX INTERNATIONAL LIMITED

2000-11-02 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000915

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2000-11-02 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 04B 18/04 A, 7C 04B 28/10 B, 7B 09B 3/00 -, 7G 21F 9/34 -, 7C 04B 28/10 J, 7C 04B 18:04 J, 7C 04B 22:06 J

2000-04-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991229

2000-04-05 [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

2000-04-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL PAYMENT 19991229;LT PAYMENT 19991229;LV PAYMENT 19991229;RO PAYMENT 19991229;SI PAYMENT 19991229