Process for removing organic contaminants from wet-processed phosphoric acid
AssigneeHoechst Aktiengesellschaft
InventorsReinhard Gradl, Hans-Werner Stephan, Gero Heymer, Gunther Schimmel
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Abstract
The disclosure relates to a process for removing organic compounds from wet-processed phosphoric acid with the aid of an adsorbant. To this end the disclosure provides for the acid to be heated to at least 250.degree. C. prior to treating it with the adsorbant. The disclosure also relates to an apparatus for carrying out the process.
Claims4
A process for removing organic compounds from crude wet-processed phosphoric acid comprising heating the acid to a temperature of at least 250.degree. C. under a pressure of 15 to 85 bars, prior to contacting it with an adsorbant of active carbon or carbon black.
Dependencies are inferred from the claim text.