EP 2313200 A1 20110427 - INORGANIC PARTICLES COMPRISING AN ORGANIC COATING THAT CAN BE HYDROPHILICALLY/HYDROPHOBICALLY TEMPERATURE CONTROLLED
Title (en)
INORGANIC PARTICLES COMPRISING AN ORGANIC COATING THAT CAN BE HYDROPHILICALLY/HYDROPHOBICALLY TEMPERATURE CONTROLLED
Title (de)
ANORGANISCHE PARTIKEL MIT EINER DURCH TEMPERATUR HYDROPHIL/HYDROPHOB SCHALTBAREN ORGANISCHEN BESCHICHTUNG
Title (fr)
PARTICULES INORGANIQUES COMPORTANT UN REVÊTEMENT ORGANIQUE POUVANT ÊTRE COMMUTÉ HYDROPHILE/HYDROPHOBE SOUS L'EFFET DE LA TEMPÉRATURE
Publication
Application
Priority
- EP 2009059215 W 20090717
- EP 08160685 A 20080718
- EP 09780763 A 20090717
Abstract (en)
[origin: WO2010007157A1] The invention relates to a method for separating at least one first substance from a mixture containing said at least one first substance and at least one second substance. Said method consists of the following steps: (A) the mixture containing the at least one first substance and at least one second substance is brought into contact with at least one selective hydrophobing agent in the presence of a suspension agent such that an adduct is formed form at least one hydrophobing agent and the at least one first substance, and not from the at least one second substance; (B) the adduct from step (A) is brought into contact with at least one magnetic particle which is functionalised on the surface with at least one polymer compound having a transition temperature LCST (Lower Critical Solution Temperature), at a temperature at which the polymer compound has a hydrophobic character, such that the adduct from step (A) and the at least one functionalised magnetic particle agglomerates; (C) another suspending agent is optionally added to the mixture obtained in step (B); (D) the agglomerate present in the suspension in steps (B) or (C) is separated by applying a magnetic field; (E) the agglomerate separated in step (D) is divided by controlling a temperature at which the polymer compound has a hydrophilic character, in order to obtain at least one first substance.
IPC 8 full level
CPC (source: EP US)
B03C 1/015 (2013.01 - EP US); H01F 1/0054 (2013.01 - EP US); H01F 1/44 (2013.01 - EP US)
Citation (search report)
See references of WO 2010007157A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010007157 A1 20100121; AU 2009272672 A1 20100121; CL 2011000112 A1 20110624; EP 2313200 A1 20110427; EP 2313200 B1 20120627; PE 20110528 A1 20110811; PL 2313200 T3 20121130; US 2011120919 A1 20110526; US 8434623 B2 20130507
DOCDB simple family (application)
EP 2009059215 W 20090717; AU 2009272672 A 20090717; CL 2011000112 A 20110118; EP 09780763 A 20090717; PE 2011000043 A 20090717; PL 09780763 T 20090717; US 200913054702 A 20090717