Process for the preparation of ettringite fibers

Details Process for the preparation of ettringite fibers Process for the preparation of ettringite fibers

1977-10-28

1979-02-20

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106102, 106 97, C09C 102

Patent

active

041405404

ABSTRACT:
The present invention relates to an improvement in the process of U.S. Pat. No. 4,002,484, making it possible to obtain ettringite in fiber form.
According to the invention, the process is carried out in the same way as in U.S. Pat. No. 4,002,484 but with enough water to assure having a suspension containing a maximum of 25% dry matter at the end of the reaction, and in subjecting said suspension to moderate stirring of 1 to 5 times the force necessary to maintain a homogeneous suspension.
Application to the replacement of asbestos fibers, notably as a fire-proof product.

REFERENCES:
patent: 3992217 (1976-11-01), Baudouin et al.
patent: 4002484 (1977-01-01), Baudouin
Journal of the American Ceramic Society, 1973, vol. 56, No. 6, p. 318.

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