Process for drying boron-containing minerals and products...

C - Chemistry – Metallurgy – 01 – B

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C01B 35/12 (2006.01) C01B 35/00 (2006.01) C09K 8/68 (2006.01) F26B 3/00 (2006.01)

Patent

CA 2700542

Processes for the rapid and efficient drying of boron-containing compounds, in particular boron-containing minerals and ores, are described, as well as the products which result from such processes. The process comprises the steps of providing a boron-containing material; introducing the boron-containing material into a pre-heated furnace; heating the boron-containing material in the furnace at a temperature between about 800 °F and 1000 °F; retaining the boron-containing material within the furnace for a time ranging from about 5 minutes to about 120 minutes; and removing the boron-containing material from the furnace and allowing it to cool to ambient temperature. Optionally, the process may also comprise one or more steps of grinding and/or sizing the boron-containing material to a specific particle size prior to the introduction of the material to a furnace.

La présente invention se rapporte à des procédés de séchage rapide et efficace de composés contenant du bore, en particulier des minéraux et des minerais contenant du bore ainsi que sur des produits qui résultent de tels procédés. Le procédé comprend l'étape d'obtention d'un matériau contenant du bore ; l'introduction du matériau contenant du bore dans un four préchauffé ; le chauffage du matériau contenant du bore dans le four à une température comprise entre environ 800 °F et 1000 °F ; le maintien du matériau contenant du bore dans le four pendant un temps variant entre environ 5 minutes et environ 120 minutes ; et l'enlèvement du matériau contenant du bore du four et son refroidissement à température ambiante. Facultativement, le procédé peut également comprendre une ou plusieurs étapes consistant à moudre et/ou dimensionner le matériau contenant du bore à une taille particulaire spécifique avant l'introduction du matériau dans un four.

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