Title:
FLOCCULANTS
Document Type and Number:
WIPO Patent Application WO2001044110
Kind Code:
B1
Abstract:
Polyaluminium chloride solutions may tend to be unstable in storage particularly those having a high basicity or charge density. This may markedly reduce the efficiency of the flocculant. The invention provides an aqueous polyaluminium chloride flocculant solution containing a stabilising quantity of a dissolved boron compound or compounds such as, for example, the boric acids or salts. The stabiliser may be included during the production of the focculant or to an existing flocculant.
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Inventors:
CLARKE NEIL (GB)
NEWTON JOHN (GB)
HALLIWELL ANNETTE (GB)
WOOD WENDY (GB)
NEWTON JOHN (GB)
HALLIWELL ANNETTE (GB)
WOOD WENDY (GB)
Application Number:
PCT/EP2000/012870
Publication Date:
October 25, 2001
Filing Date:
December 07, 2000
Export Citation:
Assignee:
FERALCO AB (SE)
CLARKE NEIL (GB)
NEWTON JOHN (GB)
HALLIWELL ANNETTE (GB)
WOOD WENDY (GB)
CLARKE NEIL (GB)
NEWTON JOHN (GB)
HALLIWELL ANNETTE (GB)
WOOD WENDY (GB)
International Classes:
C01F7/57; C02F1/52; (IPC1-7): C01F7/56; C02F1/52
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Previous Patent: WO/2001/044109
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