Title:
HIGH MOLECULAR WEIGHT POLYMERS CONTAINING PENDENT SALICYCLIC ACID GROUPS FOR CLARIFYING BAYER PROCESS LIQUORS
Document Type and Number:
WIPO Patent Application WO2004076510
Kind Code:
A3
Abstract:
A high molecular weight, water-soluble polymer comprising pendant salicylic acid groups and having a weight average molecular weight of at least about 2,000,000 daltons and use of the polymer for clarifying red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite.
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Inventors:
QUADIR MURAT
PHILLIPS EVERETT C
BRAMMER LARRY E JR
MAHONEY ROBERT P
KILDEA JOHN D
RAMESH MANIAN
MALITO JOHN T
PHILLIPS EVERETT C
BRAMMER LARRY E JR
MAHONEY ROBERT P
KILDEA JOHN D
RAMESH MANIAN
MALITO JOHN T
Application Number:
PCT/US2004/004004
Publication Date:
September 09, 2005
Filing Date:
February 11, 2004
Export Citation:
Assignee:
NALCO CO (US)
International Classes:
B01D21/01; C01F7/0653; C01F7/47; C02F1/52; C02F1/56; C08F220/58; C08F246/00; (IPC1-7): C08G67/02; C08F120/58; C08F120/54; C08F20/10; C08F122/10; C08F118/16; C08F220/68; C08F220/10
Foreign References:
| US3290270A | 1966-12-06 | |||
| US2883361A | 1959-04-21 | |||
| US2624690A | 1953-01-06 |
Other References:
BONACCORSI ET AL.: "Coordiantion chemical concepts applied to the design of metal ions", INTERN. J. POLYMERIC MATERIALS, vol. 18, 1992, pages 165 - 177, XP008049659
BRAUN D. ET AL.: "Reversible crosslinking by complaex formation: Polymers containing 2-hydroxybenzoic acid residues", EUROPEAN POLYMER JOURNAL, vol. 12, 1976, pages 525 - 528, XP002909704
BRAUN D. ET AL.: "Reversible crosslinking by complaex formation: Polymers containing 2-hydroxybenzoic acid residues", EUROPEAN POLYMER JOURNAL, vol. 12, 1976, pages 525 - 528, XP002909704
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