METHOD FOR PRODUCTION OF NITRIC GRANULATED FERTILIZER FROM TECHNOGENE SOLUTION OF SULFURIC ACID

A method for production of nitric granulated fertilizer from technogene solution of a sulfuric acid containing iron compounds consists in mixing the acid with products of powder-gas cleaning of waste gases of manufacture, neutralization of a mix by ammonia, granulation and drying of products of neut...

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Hauptverfasser:	DMYTRIIEV VOLODYMYR YEVHENOVYCH, TERENTIEV ALBERT MYKHAILOVYCH, SILICH HANNA VASYLIVNA, VAKAL SERHII VASYLIOVYCH, KHAKONOV AMIN ISMAILOVYCH, KARPOVYCH EDUARD OLEKSANDROVYCH, KALMYKOV VALERII VOLODYMYROVYCH, ZARECHENYI VOLODYMYR HRYHOROVYCH
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERTILISERS FERTILISERS PRODUCING CARBON DIOXIDE INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C MANUFACTURE THEREOF METALLURGY NITROGENOUS FERTILISERS
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Beschreibung
Zusammenfassung:	A method for production of nitric granulated fertilizer from technogene solution of a sulfuric acid containing iron compounds consists in mixing the acid with products of powder-gas cleaning of waste gases of manufacture, neutralization of a mix by ammonia, granulation and drying of products of neutralization, classification and cooling of the granulated fertilizer, cleaning of the waste gases with returning products of powder-gas cleaning in manufacture. Neutralization is conducted by liquid ammonia, and in a product of neutralization which moves on granulation and drying, pH is supported within the range of 4.2-8, and a ratio of Fe+3:Fetotal in the range of (0.15-0.5) :1.