Process for the preparation of asbestiform crystalline...

Details Process for the preparation of asbestiform crystalline... Process for the preparation of asbestiform crystalline...

C - Chemistry, Metallurgy

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B

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C01B 25/445 (2006.01) C01B 25/44 (2006.01) C01B 25/45 (2006.01)

Patent

CA 1289724

PROCESS FOR THE PREPARATION OF ASBESTIFORM CRYSTALLINE CALCIUM SODIUM METAPHOSPHATE FIBER ABSTRACT OF THE INVENTION Asbestiform crystalline calcium sodium metaphosphate fiber is prepared by (a) forming a wet mix slurry having a composition on a dry basis equiva- lent to a CaO/Na2O/P2O5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na2O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate, and (c) fiberizing the product crystals of calcium sodium metaphosphate.

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