ES441305A1 - Perfected method for the acidulate of the phosphate stone. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Perfected method for the acidulate of the phosphate stone. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status 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 status listed.)
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PennzEnergy Co
Original Assignee
Pennzoil Co
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Publication date
Priority claimed from US05/608,973external-prioritypatent/US4086322A/en
Application filed by Pennzoil CofiledCriticalPennzoil Co
Publication of ES441305A1publicationCriticalpatent/ES441305A1/en
Improved method for the acidification of the phosphate stone, which comprises reacting the phosphate stone with a phosphoric acid solution containing alkali metal ion values in a acidulated reactor that uses a sufficient amount of phosphoric acid to solubilize it. Complete the calcium phosphates present, and sufficient alkali metal ions to cause the fluorides present in the phosphate stone to precipitate essentially in a solid alkali metal fluosilicate and form a slurry of the solid in a solution of monocalcium phosphate and phosphoric acid, separating the fluosilicate from solid alkali metal, and recovering a solution of calcium phosphate in phosphoric acid. (Machine-translation by Google Translate, not legally binding)
ES441305A1974-10-071975-09-26Perfected method for the acidulate of the phosphate stone. (Machine-translation by Google Translate, not legally binding)
ExpiredES441305A1
(en)
Process for preparing phosphates and a uranium-containing concentrate from wet-process phosphoric acid, as well as phosphates and uranium-containing concentrate obtained with application of this process.