ES341587A1 - A procedure for the production of a phosphonitrogenated fertilizer. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the production of a phosphonitrogenated fertilizer. (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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Power Gas Corp Ltd
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Power Gas Corp Ltd
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Publication of ES341587A1publicationCriticalpatent/ES341587A1/en
C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)
Abstract
A process to produce a phosphonitrogenous fertilizer, characterized by the steps of decomposing phosphate mineral with nitric acid, so that substantially all the P2O5 of the phosphate mineral is converted to monocalcium phosphate, also forming calcium nitrate; add ammonium sulfate in sufficient quantity to precipitate all the calcium from the solution, in the form of calcium sulfate; separating the precipitated calcium sulfate from the reaction product; and remove the remaining reaction product. (Machine-translation by Google Translate, not legally binding)
ES341587A1966-06-101967-06-09A procedure for the production of a phosphonitrogenated fertilizer. (Machine-translation by Google Translate, not legally binding)
ExpiredES341587A1
(en)
Process for the purification of residual gypsum produced in the manufacture of phosphoric acid by the reaction of sulphuric acid with natural phosphates
A process in which phosphorite is digested in an aqueous mixture of nitric acid and ammonium sulfate to produce a clear filtrable paste. (Machine-translation by Google Translate, not legally binding)
Procedure for the production of composite fertilizers containing nitrogen, phosphorus, potassium and magnesium (Machine-translation by Google Translate, not legally binding)