Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by اوكسيد ينتال بتروليوم كوربوريشنfiledCriticalاوكسيد ينتال بتروليوم كوربوريشن
Priority to JO1977860ApriorityCriticalpatent/JO860B1/en
Application grantedgrantedCritical
Publication of JO860B1publicationCriticalpatent/JO860B1/en
A process for the extraction of metallic impurities from unpurified phosphoric acid by solvent extraction employing an organic extractant phase containing an organic sulphonic acid in its H+ form. after the extraction step and separation of the extractant phase and phosphoric acid, residual P2O5 values are selectively recovered from the extractant phase by washing the extractant phase with dilute equeous phosphoric acid. the sulphonic acid in the extractant phase can be regenerated to its H+ form with a mineral acid and recycled
JO1977860A1977-04-191977-04-19Process for purification of phosphoric Acid
JO860B1
(en)