WO1991007351A1
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Silica sols, a process for the production of silica sols and use of the sols
Assignee: Nouryon Pulp and Performance Chemicals AB
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Filing: 1990-10-24
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Granted: —
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Expires: 2010-10-24
Abstract
Abstract Silica sols which have a large alkali excess, i.e. a low molar ratio SiO2 to M2O, and which contain silica particles with a high specific surface area. The silica sols can be prepared through acidification of a water glass solution and subsequent alkalization of the acid sol to the molar ratio in question. The sols are particularly suitable for use as additives, in combination with cationic polymers, in papermaking.
Inventors
- 👤 Hans Erik Johansson
- 👤 Bo Valdemar Larsson
Bibliographic Details
Application Number
—
Jurisdiction
WO
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/63; D21H17/67; D21H17/68; C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/146; C01B33/148; C01B33/1485
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