EP 0669145 A1 19950830 - Method for immobilizing ecologically harmful, organic or inorganic compounds.
Title (en)
Method for immobilizing ecologically harmful, organic or inorganic compounds.
Title (de)
Verfahren zur Immobilizierung von organischen oder inorganischen umweltschädlichen Verbindungen.
Title (fr)
Méthode d'immobilisation de composés organiques ou inorganiques écologiquement dangereux.
Publication
Application
Priority
NL 9400292 A 19940225
Abstract (en)
The invention relates to a method for immobilizing ecologically harmful, organic or inorganic compounds, by mixing these compounds in the presence of water with a fixant which comprises an absorbent and allowing the mixture to set, after the addition of an inorganic hydraulic binder, to obtain a hard, stone-like material, wherein the absorbent used in the fixant is optionally pre-treated activated carbon, cellulose or a cellulose derivative. The activated carbon used preferably has been sulphurized or treated with a silicon-containing organic reagent. The fixant further contains, according to an expedient embodiment, at least one coordination complex-forming agent which, in particular, is selected from an iron, manganese or aluminium salt or comprises a combination thereof.
IPC 1-7
IPC 8 full level
A62D 3/00 (2006.01); A62D 3/33 (2007.01); A62D 101/20 (2007.01); A62D 101/22 (2007.01); A62D 101/24 (2007.01); A62D 101/40 (2007.01); A62D 101/43 (2007.01); A62D 101/45 (2007.01); A62D 101/49 (2007.01)
CPC (source: EP)
A62D 3/33 (2013.01); A62D 2101/20 (2013.01); A62D 2101/22 (2013.01); A62D 2101/24 (2013.01); A62D 2101/40 (2013.01); A62D 2101/43 (2013.01); A62D 2101/45 (2013.01); A62D 2101/49 (2013.01)
Citation (search report)
- [X] EP 0535757 A1 19930407 - PELT & HOOYKAAS [NL]
- [X] WO 9216317 A1 19921001 - LANDFILL SERVICE CORP [US]
- [X] FR 2302970 A1 19761001 - PERRIER MATERIEL [FR]
- [X] EP 0149501 A2 19850724 - PELT & HOOYKAAS [NL]
- [A] EP 0535758 A1 19930407 - PELT & HOOYKAAS [NL]
- [A] DATABASE WPI Week 7942, Derwent World Patents Index; AN 79-76659B
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 95200451 A 19950223; NL 9400292 A 19940225