EP 1428228 A4 20080430 - MAGNETIC ACTIVATED PARTICLES FOR ADSORPTION OF SOLUTES FROM SOLUTION
Title (en)
MAGNETIC ACTIVATED PARTICLES FOR ADSORPTION OF SOLUTES FROM SOLUTION
Title (de)
MAGNETAKTIVIERTE PARTIKEL ZUR ADSORPTION VON GELÖSTEN STOFFEN AUS LÖSUNG
Title (fr)
PARTICULES DE CARBONNE A ACTIVATION MAGNETIQUE POUR ADSORPTION DE SOLUTES A PARTIR D UNE SOLUTION
Publication
Application
Priority
- US 0206065 W 20020226
- US 27155101 P 20010226
Abstract (en)
[origin: WO02069351A1] A composition of and method for forming activated carbon with magnetic properties for magnetic separation of the activated carbon from a liquid being treated is disclosed wherein a solution iron magnetic precursor is intimately mixed or absorbed into a porous carbon precursor or mixed with a solution or meltable carbon precursor to form an essentially homogeneous mixture or solution that when dried and pyrolized forms activated carbon particles with magnetic material evenly dispersed throughout the activated carbon material. The activated carbon particles may be of fine particle size, even powdered, and still retain magnetic properties sufficient for magnetic separation. In a particular aspect of the invention, a carbon precursor of soft wood is soaked in a solution of a ferric salt, dried, pyrolized and activated.
IPC 1-7
IPC 8 full level
B01D 15/00 (2006.01); B01J 20/20 (2006.01); B03C 1/01 (2006.01); C01B 31/08 (2006.01); C01B 32/336 (2017.01); H01F 1/00 (2006.01); C02F 1/28 (2006.01)
CPC (source: EP US)
B01D 15/00 (2013.01 - EP); B01J 20/20 (2013.01 - EP); B01J 20/28009 (2013.01 - EP); B03C 1/01 (2013.01 - EP); B82Y 25/00 (2013.01 - EP US); C01B 32/30 (2017.07 - EP US); C01B 32/318 (2017.07 - EP US); C01B 32/336 (2017.07 - EP); C22B 3/24 (2013.01 - EP US); C02F 1/283 (2013.01 - EP); C02F 2101/10 (2013.01 - EP); C02F 2101/38 (2013.01 - EP); Y02P 10/20 (2015.11 - EP)
Citation (search report)
- [X] US 3803033 A 19740409 - SUTHERLAND G
- [X] US 4201831 A 19800506 - BROOKS RONALD E [US], et al
- [X] GB 1568349 A 19800529 - HITACHI LTD
- See references of WO 02069351A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02069351 A1 20020906; EP 1428228 A1 20040616; EP 1428228 A4 20080430
DOCDB simple family (application)
US 0206065 W 20020226; EP 02706453 A 20020226