EP 0989965 A4 20001102 - 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 A4 20001102 (EN)

Application

EP 98923926 A 19980529

Priority

AU 9800408 W 19980529
AU PO705597 A 19970529
AU PO926997 A 19970918
AU PO927097 A 19970918
AU PO315898 A 19980422

Abstract (en)

[origin: TW503226B] 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 sellable composition, forming a slurry, and allowing the slurry to set to encapsulate the waste material. The sellable 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 or the set composition which has a concrete-like appearance.

IPC 1-7

C04B 18/04; C04B 28/10

IPC 8 full level

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

C04B (2006.01)

CPC (source: EP KR)

A62D 3/33 (2013.01 - EP); A62D 3/36 (2013.01 - KR); B09B 3/20 (2022.01 - EP); B09B 3/25 (2022.01 - KR); C04B 7/24 (2013.01 - KR); C04B 18/04 (2013.01 - KR); C04B 28/105 (2013.01 - EP); G21F 9/304 (2013.01 - KR); A62D 2101/24 (2013.01 - EP); A62D 2101/43 (2013.01 - EP); A62D 2203/02 (2013.01 - EP); C04B 2103/0067 (2013.01 - EP); Y02W 30/91 (2015.05 - EP KR)

Citation (search report)

[XP] WO 9720784 A1 19970612 - PERICLASE PTY LTD [AU], et al
[Y] EP 0355507 A1 19900228 - SIEMENS AG [DE]
[Y] GB 1160029 A 19690730 - MAYER HERBERT [AU]
[A] US 5249889 A 19931005 - SIERZEGA PHILIP E [US]
[A] DE 19529850 A1 19970213 - KALI UMWELTTECHNIK GMBH K UTEC [DE]
[A] WO 9218437 A1 19921029 - RAMSEYER BEVERLY J [US]
See references of WO 9854107A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0989965 A1 20000405; EP 0989965 A4 20001102; IL 133161 A0 20010319; KR 100768263 B1 20071018; KR 20060009393 A 20060131; TW 503226 B 20020921

DOCDB simple family (application)

EP 98923926 A 19980529; IL 13316198 A 19980529; KR 20057024394 A 20051219; TW 87119858 A 19981201