FIELD: chemical technology, materials technology.
SUBSTANCE: method for preparing mullite involves mixing kaolin with ammonium bifluoride in the mass ratio kaolin to ammonium bifluoride = (1:1)-1.1, roasting to temperature 350-6000C and caking at temperature 1200-13000C. Invention provides preparing pure mullite without silicon oxide as impurity.
EFFECT: improved preparing method.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| CERAMIC BODY | 1999 |
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|
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|
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| CERAMIC BODY | 1999 |
|
RU2162829C2 |
