EP 0693040 A1 19960124 - METHOD OF PURIFYING SOLUIONS CONTAINING ALKALI-METAL ALUMINATES
Title (en)
METHOD OF PURIFYING SOLUIONS CONTAINING ALKALI-METAL ALUMINATES
Title (de)
VERFAHREN ZUR REINIGUNG VON ALKALIALUMINATENTHALTENDEN LÖSUNGEN
Title (fr)
PROCEDE D'EPURATION DE SOLUTIONS CONTENANT DES ALUMINATES ALCALINS
Publication
Application
Priority
- DE 4311716 A 19930408
- EP 9401081 W 19940407
Abstract (en)
[origin: WO9424050A2] The invention concerns a multi-stage method for the purification of the alkali-metal aluminate solutions arising as wastes in the aluminium processing industry, as well as the processing of solid aluminium-containing residues to give purified alkali-metal aluminate solutions or solid alkali-metal aluminates.
IPC 1-7
IPC 8 full level
C01F 7/04 (2022.01); C01F 7/47 (2022.01); C23G 1/36 (2006.01)
CPC (source: EP)
C01F 7/04 (2013.01); C01F 7/47 (2013.01); C23G 1/36 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL
DOCDB simple family (publication)
WO 9424050 A2 19941027; WO 9424050 A3 19941208; CZ 261395 A3 19960515; CZ 290971 B6 20021113; DE 4311716 C1 19941124; EP 0693040 A1 19960124; PL 310826 A1 19960108; SK 125995 A3 19960207; SK 283913 B6 20040504
DOCDB simple family (application)
EP 9401081 W 19940407; CZ 261395 A 19940407; DE 4311716 A 19930408; EP 94916913 A 19940407; PL 31082694 A 19940407; SK 125995 A 19940407