EP 1789156 A1 20070530 - A PROCESS FOR RECOVERING ORGANIC AND INORGANIC COMPONENTS FROM A WASTE STREAM
Title (en)
A PROCESS FOR RECOVERING ORGANIC AND INORGANIC COMPONENTS FROM A WASTE STREAM
Title (de)
VERFAHREN ZUR RÜCKGEWINNUNG VON ORGANISCHEN UND ANORGANISCHEN KOMPONENTEN AUS EINEM ABFALLSTROM
Title (fr)
PROCEDE DE RECUPERATION DE COMPOSANTS ORGANIQUES ET INORGANIQUES A PARTIR D'UN FLUX DE DECHETS
Publication
Application
Priority
- FI 2005000349 W 20050803
- FI 20041056 A 20040804
Abstract (en)
[origin: WO2006013228A1] The present invention relates to a process for recovering an organic or inorganic acid, base and/or salt from an aqueous waste solution by cooling crystallisation, which waste solution further contains at least one organic component, comprising the steps of: a. precipitating said organic component by cooling the waste solution within a temperature range of 0 °C to a temperature below the freeze crystallisation point of said organic or inorganic acid, base or salt, b. removing the precipitated product of step (a) by separation from the waste solution, and c. precipitating the desired organic or inorganic acid, base or salt as crystals by cooling further the waste solution obtained from step (b) to the freeze crystallisation point of said organic or inorganic acid, base or salt, and d. recovering the precipitated product of step (c).
IPC 8 full level
IPC 8 main group level
C02F (2006.01)
CPC (source: EP)
C02F 1/22 (2013.01); C02F 2101/163 (2013.01)
Citation (search report)
See references of WO 2006013228A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006013228 A1 20060209; EP 1789156 A1 20070530; FI 20041056 A0 20040804; FI 20041056 A 20060205
DOCDB simple family (application)
FI 2005000349 W 20050803; EP 05775475 A 20050803; FI 20041056 A 20040804