3

The methods of nitric acid processing of phosphate raw materials are analyzed. A technology has been developed for the nitric acid processing of phosphate raw materials into nitrogen-phosphorus fertilizer with the implementation of the process in a condensed pulp by adding sulfuric acid. A technology for producing complex fertilizers with a wide range of N:P2O5:K2O ratios with improved physico-chemical parameters due to the introduction of various potassium salts into the process is proposed

  • Read count 3
  • Date of publication 01-05-2024
  • Main LanguageIngliz
  • Pages212-221
English

The methods of nitric acid processing of phosphate raw materials are analyzed. A technology has been developed for the nitric acid processing of phosphate raw materials into nitrogen-phosphorus fertilizer with the implementation of the process in a condensed pulp by adding sulfuric acid. A technology for producing complex fertilizers with a wide range of N:P2O5:K2O ratios with improved physico-chemical parameters due to the introduction of various potassium salts into the process is proposed

№ Name of reference
1 1.Preliminary patent of the Republic of Uzbekistan IDP 05291 .MKI 7S 05V 13/06. Method for producing complex fertilizer. / Erkaev A.U. Yusupbekov N.R. Artikov G.O. and etc. //Ichthirolar . Rasmiy akhbor o tnoma. 2002 г. No. 4.2.Patent of the Republic of Uzbekistan No. IAP 05335. Method for processing highly carbonized phosphorites / Erkaev A.U., Yakubov R.Ya., Allamuratova A., Toirov Z.K. // Publ . 01/04/2017. –Bulletin No 2.3.Reimov A.M., Erkaev A.U., Namazov Sh.S., Beglov B.M. Physico-chemical properties of nitrocalcium phosphate pulps//Uzb. Chem. Zh. 2001, No6, P.6-11.4.Reimov A.M., Erkanv A.U., Namazov Sh.S., Beglov B.M. Nitrogen -_ phosphorus -calcium fertilizers based on the decomposition of ordinary and phosphamide of the Central Kyzylkum with an incomplete norm of nitric acid // Reports of the Academy of Sciences of the Republic of Uzbekistan, No 5, P. 50-52.5.Reimov A.M. Development of a technology for the production of nitrocalcium phosphate and nitrocalcium sulphophosphate fertilizers based on the decomposition of Kyzylkum phosphorites at a reduced rate of nitric acid: Author 's abstract ..... candidate oftechnical sciences. -Tashkent, 2004 -23 pages.6.Radzhabov R.R. Pilot plant for producing nitrocalcium phosphate fertilizer // Chemical technology. Control and management. -2006, No 3, p. 5-11.7.Radzhabov R.R., Namazov Sh.S.. Granulation and drying of nitrophosphate fertilizers. Current problems of chemical processing of phosphorites of the Central Kyzylkum . Conference materials Tashkent, 2006, 32-36 pp.8.Pozin M.E. Technology of mineral fertilizers : Textbook for universities. L.: Chemistry, 1989.-358 pp.9.Mineev V.G., Gryzlov V.P. Complex fertilizers : Agropriemizdat , 1986.-252 pp.10.Kuvshinnikov I.M. Mineral fertilizers and salts: properties and methods for their improvement. -M: Chemistry 1987. –256 p.11.Yakubov R.Ya., Ibragimov K.G., Erkaev A.U. and others. Research on ways to improve the physical and chemical properties of nitrocalcium phosphate fertilizer // Proc . d okl . international _ scientific _ Conf .: Volgograd. –2009. –P.31.12.Yakubov R.Ya., Erkaev A.U., Ibragimov K.G., Toirov Z.K. Determination of the effectiveness of the influence of modifying mineral salts on the hygroscopicity of complex fertilizers. // Chemical Technology. Control and management.-2010y No3, pp 5-11 .13.Yakubov R.Ya., Erkaev A.U., Ibragimov K.G. , Toirov Z.K. Organization of production of NPK fertilizers using low-grade phosphorites of the Central Kyzylkum . // Chemical technology. Monitoring and management.-2010y, No 3, pp.5-11 14.Erkaev A.U., Ibragimov K.G., Toirov Z.K., Yakubov R.Ya. Conditioning of nitrocalcium phosphate fertilizer with inorganic additives. // Chemistry and chemical technology. –2010y, No 2 , pp. 7-12
Waiting