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Información tecnológica

On-line version ISSN 0718-0764


DOMINGUEZ, Orlando J; SERRANO, Emilio M; FLORES, Jorge E  and  MICHEL, Raquel L. A New Method to Improve the Production Process of Boric Acid. Inf. tecnol. [online]. 2011, vol.22, n.1, pp.101-108. ISSN 0718-0764.

This paper proposes a modification to the traditional process for obtaining boric acid with the addition of acid leaching split, to get a highly soluble product, as sodium pentaborate. In this way the mineral can be dissolved without heating, decreasing the amount of leaching reagent, thus saving energy. The pH of the clarified liquid is decreased leading to the precipitation of boric acid. The gangue runs out at different stages of precipitation and filtration, with its successive washes, improving process performance. The produced boric acid has characteristics, such as texture and purity, comparable with that obtained by traditional processes.

Keywords : borates; boric acid; ulexite; sodium pentaborate; leaching.

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