Preparation of silicate or glass in a furnace with burners...

C - Chemistry – Metallurgy – 01 – B

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Details

C01B 33/20 (2006.01) C01B 33/187 (2006.01) C01B 33/24 (2006.01) C01B 33/32 (2006.01) C03B 3/02 (2006.01) C03B 5/235 (2006.01) C03C 1/02 (2006.01)

Patent

CA 2539533

The invention relates to a method for the preparation of silicates of an element, selected from amongst the alkaline, alkaline earth or rare earth elements, comprising a reaction between silica and the sulphate of said element in a reactor provided with at least one burner immersed in a fused mass, said immersed burner being supplied with a gas comprising oxygen, whereby an excess of reducing fuel is introduced into the reactor with relation to the oxygen effectively consumed. The method permits the satisfactory execution of the method at a relatively low temperature.

L'invention concerne un procédé de préparation de silicate d'un élément choisi parmi les alcalins, alcalino-terreux ou terre rare, comprenant une réaction entre de la silice et un sulfate dudit élément dans un réacteur équipé d'au moins un brûleur immergé dans une masse en fusion, ledit brûleur immergé étant alimenté par un gaz comprenant de l'oxygène, un excès de combustible réducteur étant introduit dans le réacteur par rapport à l'oxygène effectivement consommé. Le procédé permet le déroulement de la réaction de façon satisfaisante et à relativement basse température.

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