Treatment process for an impure phosphoric acid

Details Treatment process for an impure phosphoric acid Treatment process for an impure phosphoric acid

C - Chemistry, Metallurgy

01

B

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C01B 25/234 (2006.01) C01B 25/235 (2006.01)

Patent

CA 1134119

PRECIS DE LA DIVULGATION: L' invention concerne un procédé de prétraitement d'un acide phosphorique brut de voie humide. Ce procédé comporte le traitement de l'acide brut au moyen d'un agent adsorbant dans des conditions telles qu'il y ait suspension de l'agent, puis le traitement de la suspension au moyen d'un agent de floculation, le maintien du mélange résultant sous agitation non cisaillante et la séparation de l'acide purifié et du floculat. On obtient ainsi un acide purifié apte à subir des traitements par extraction liquide-liquide.

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