PROCEDE DE FABRICATION SIMULTANEE D'ACIDE PHOSPHORIQUE OU DE SELS DE CET ACIDE, AINSI QUE D'ENGRAIS MINERAL COMPLEXE
In the process according to the invention, raw phosphate rock is decomposed with an aqueous solution of sulfuric acid and ammonium sulfate recycled from the conversion step of phosphogypsum into chalk, and then the decomposition liquor stream is divided into a partial acid plant stream (Liquor I) to...
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| creator | JERZY SCHROEDER, JERZY SYNOWIEC, TADEUSZ ZRUBEK, HENRYK GORECKI, ZDZISLAW WOLNICKI ET ROMAN HNATOWICZ |
| description | In the process according to the invention, raw phosphate rock is decomposed with an aqueous solution of sulfuric acid and ammonium sulfate recycled from the conversion step of phosphogypsum into chalk, and then the decomposition liquor stream is divided into a partial acid plant stream (Liquor I) to be converted into phosphoric acid and a partial fertilizer plant stream (Liquor II) to be processed to a multi-component mineral fertilizer. From the acid plant stream (Liquor I) constituting up to 30 per cent by weight of the total decomposition stream, ammonium sulfate is precipitated and introduced into the fertilizer plant stream (Liquor II), all the above mentioned processes of decomposition, separation and precipitation being carried out continuously. |
| format | Patent |
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From the acid plant stream (Liquor I) constituting up to 30 per cent by weight of the total decomposition stream, ammonium sulfate is precipitated and introduced into the fertilizer plant stream (Liquor II), all the above mentioned processes of decomposition, separation and precipitation being carried out continuously.</abstract><oa>free_for_read</oa></addata></record> |
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| language | fre |
| recordid | cdi_epo_espacenet_FR2302965A1 |
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| subjects | CHEMISTRY COMPOUNDS THEREOF FERTILISERS FERTILISERS PRODUCING CARBON DIOXIDE INORGANIC CHEMISTRY INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C MANUFACTURE THEREOF METALLURGY NON-METALLIC ELEMENTS PHOSPHATIC FERTILISERS |
| title | PROCEDE DE FABRICATION SIMULTANEE D'ACIDE PHOSPHORIQUE OU DE SELS DE CET ACIDE, AINSI QUE D'ENGRAIS MINERAL COMPLEXE |
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