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PANMETAL AND PROCESSES Inc
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PANMETAL AND PROCESSES Inc
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Publication date
Application filed by PANMETAL AND PROCESSES IncfiledCriticalPANMETAL AND PROCESSES Inc
Publication of ES260421A1publicationCriticalpatent/ES260421A1/es
Solid-Sorbent Or Filter-Aiding Compositions
(AREA)
Catalysts
(AREA)
Abstract
Procedimiento de preparación de fosfatos minerales destinados a la fabricación de ácido fosfórico por vía húmeda, caracterizado por el hecho de que el fosfato, antes de ser introduido en la cuba de reacción ordinaria, es sometido a un tratamiento previo con ácido fosfórico para provocar el desprendimiento de la mayor parte del CO2.
ES0260421A1960-08-141960-08-16Procedimiento de preparacion de fosfatos minerales destinados a la fabricacion de acido fosforico por via humeda
ExpiredES260421A1
(es)
Process for the purification of residual gypsum produced in the manufacture of phosphoric acid by the reaction of sulphuric acid with natural phosphates