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US 2003/0149115 A1Published application
Synthetic platy magadiite and octasilicate
AssigneeThe Dow Chemical Company
InventorsJuan M. Garces, Steven R Lasko, Brian J Schoeman
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AssigneeThe Dow Chemical Company
InventorsJuan M. Garces, Steven R Lasko, Brian J Schoeman
Estimating the term…
A method for producing synthetic magadiite, including the step of: heating a liquid aqueous colloidal silica suspension, the liquid aqueous colloidal silica suspension having a mole ratio of sodium hydroxide to silica and a mole ratio of water to silica effective to produce a synthetic magadiite wherein more than fifty percent by weight of the synthetic magadiite is platy synthetic magadiite. The synthetic platy magadiite can be converted to the acid form and: (a) heated to produce quartz-like plates; or (b) alkylated to produce an organophilic material. A method for the production of platy sodium octasilicate and a method for preparing a liquid aqueous colloidal silica dispersion having a mole ratio of silica to sodium oxide of 3.5 to 10 are further disclosed.
A method for producing synthetic magadiite, comprising the step of:
Synthetic magadiite wherein more than fifty percent by weight of the synthetic magadiite is platy magadiite.
Synthetic magadiite wherein more than eighty percent by weight of the synthetic magadiite is platy magadiite.
Synthetic magadiite wherein more than ninety percent by weight of the synthetic magadiite is platy magadiite.
A method for the production of platy sodium octasilicate, comprising the step of:
A method for preparing a liquid aqueous colloidal silica dispersion, the dispersion having a mole ratio of silica to sodium oxide of from 3.5 to 10, comprising the step of:
Dependencies are inferred from the claim text.