Process for the preparation of ettringite fibres

Details Process for the preparation of ettringite fibres Process for the preparation of ettringite fibres

C - Chemistry, Metallurgy

01

F

23/103, 261/45

C01F 11/06 (2006.01) C04B 14/38 (2006.01) D01F 9/08 (2006.01)

Patent

CA 1079480

ABSTRACT OF THE DISCLOSURE The present invention relates to an improvement to the process of our earlier Canadian patent No. 1,000,470, making it possible to obtain ettringite in fibre form. According to the invention, the process is carried out in the same way as the earlier patent but using enough water to always have 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 fibres, notably as a fire-proof product.

290322

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