EP 1635943 A1 20060322 - SEMISYNTHETIC BLEACHING EARTH
Title (en)
SEMISYNTHETIC BLEACHING EARTH
Title (de)
SEMI-SYNTHETISCHE BLEICHERDE
Title (fr)
TERRE DECOLORANTE SEMI-SYNTHETIQUE
Publication
Application
Priority
- EP 2004005788 W 20040528
- DE 10324561 A 20030530
Abstract (en)
[origin: WO2004105936A1] The invention relates to a method for reprocessing an acid suspension containing at least one solid substance, according to which (a) the acid suspension containing at least one solid substance is mixed with an alkali silicate solution, the pH value of the mixture being adjusted to more than 4, and (b) the formed precipitate containing the alkali silicate and the at least one solid substance is separated and optionally washed, dried, and ground. The mixture obtained in step (a) can be further acidified by adding an acid after aging. Also disclosed are an adsorbing agent that can be obtained according to the inventive method and the use thereof.
IPC 1-7
IPC 8 full level
B01J 20/12 (2006.01); B01J 20/30 (2006.01); C01B 33/40 (2006.01)
CPC (source: EP US)
B01J 20/10 (2013.01 - EP US); B01J 20/12 (2013.01 - EP US); B01J 20/30 (2013.01 - EP US); C01B 33/40 (2013.01 - EP US)
Citation (search report)
See references of WO 2004105936A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004105936 A1 20041209; CN 100531894 C 20090826; CN 1802205 A 20060712; DE 10324561 A1 20041216; EP 1635943 A1 20060322; MY 142364 A 20101130; US 2006128564 A1 20060615; US 7579299 B2 20090825
DOCDB simple family (application)
EP 2004005788 W 20040528; CN 200480014992 A 20040528; DE 10324561 A 20030530; EP 04735199 A 20040528; MY PI20041920 A 20040520; US 29067405 A 20051130