Process for production of high-purity mullites

Details Process for production of high-purity mullites Process for production of high-purity mullites

1992-05-20

1994-08-16

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501128, 501153, C03C 300

Patent

active

053387074

ABSTRACT:
A process is disclosed for the production of high purity mullites. The process involves reacting a mixture of aluminum alkoxide and silicon alkoxide with an atomic ratio (weight) of Al/Si in the range of 2-7 in an aromatic hydrocarbon solvent at a temperature of 200.degree.-350.degree. C. and calcining the resulting reaction product at a temperature above 900.degree. C. The mullite product obtained finds wide application as a high temperature service structural material such as for automotive engines and turbines as well as a support for combustion catalyst.

REFERENCES:
patent: 5045514 (1991-09-01), Ismail et al.
patent: 5064783 (1991-11-01), Luckevich
patent: 5173455 (1992-12-01), Terbot et al.

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