Method for manufacturing water glass cement hardeners

Details Method for manufacturing water glass cement hardeners Method for manufacturing water glass cement hardeners

C - Chemistry, Metallurgy

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B

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C01B 25/36 (2006.01) C01B 25/38 (2006.01) C04B 22/16 (2006.01)

Patent

CA 1178023

- I - Abstract of the Disclosure Condensed aluminum phosphates, useful as hardeners for water glass cements, are prepared in a solid state reaction by dry mixing aluminum hydroxide with an ammonium phosphate, heating the mixture at an initial temperature below 250°C for longer than about 2 hours and then raising the temperature in stages to at least about 400°C so as to minimize foaming and to avoid any liquefaction of the mixture during the reaction.

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