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Heurtey SA
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Heurtey SA
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Publication of ES289697A1publicationCriticalpatent/ES289697A1/en
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/18—Phosphoric acid
C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
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Chemical & Material Sciences
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Organic Chemistry
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Inorganic Chemistry
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Glass Compositions
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Abstract
Improved process for obtaining phosphoric acid, by wet process, characterized in that the sulfuric acid is introduced directly into the evaporator in vacuum by spraying it on the surface of the phosphoric slurry that is then subjected to a recirculation in the tanks used as attack tanks in the classic wet process. (Machine-translation by Google Translate, not legally binding)
ES0289697A1962-07-061963-07-05Perfect procedure for the obtaining of phosphoric acid (Machine-translation by Google Translate, not legally binding)
ExpiredES289697A1
(en)
Procedure for the preparation of mineral phosphates intended for the manufacture of phosphoric acid by the wet (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of a difficult derivative solubility of the calicreine inactivator (Machine-translation by Google Translate, not legally binding)