The Removal of Fluorine from Wet Process Phosphoric Acid

Fathi Habashi; Farouk T. Awadalla

doi:10.1080/01496398308060289

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JOURNAL ARTICLE

The Removal of Fluorine from Wet Process Phosphoric Acid

Fathi Habashi Farouk T. Awadalla

Year: 1983 Journal: Separation Science and Technology Vol: 18 (5)Pages: 485-491 Publisher: Taylor & Francis

DOI: 10.1080/01496398308060289

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Abstract

Abstract Fluorine (and silicon) can be removed from technical phosphoric acid (30% P2O5) and recovered quantitatively as a by-product by adding a sodium or a potassium salt, preferably the carbonate, and boiling for a few minutes. The corresponding fluorosilicates precipitate, e.g.

Keywords:

Chemistry Phosphoric acid Fluorine Potassium carbonate Salt (chemistry) Sodium carbonate Boiling Potassium Silicon Inorganic chemistry Sodium Nuclear chemistry Radiochemistry Organic chemistry

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Extraction and Separation Processes

Physical Sciences → Engineering → Mechanical Engineering

Geochemistry and Elemental Analysis

Physical Sciences → Earth and Planetary Sciences → Geochemistry and Petrology

Minerals Flotation and Separation Techniques

Physical Sciences → Environmental Science → Water Science and Technology

The Removal of Fluorine from Wet Process Phosphoric Acid

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