Bugárová, Zuzana,Polák, Anton,Batyka, Dezider,Papp, Jozef
申请号：
EP20050103956
公开号：
EP1595860(B1)
申请日:
2005.05.11
申请国别(地区):
欧洲专利局
年份:
2018
代理人:
摘要：
Granulated ammonium nitrate-sulphate fertilizer is prepared so that a solution slurry of ammonium nitrate-sulphate is prepared by divided dosing of ammonium sulphate for the slurry with the molar ratio ammonium nitrate : ammonium sulphate of 1.8 to 2.2 : 1, to this slurry the remaining ammonium sulphate is added at a temperature of 65 to 110 °C in such an amount that the molar ratio ammonium nitrate : ammonium sulphate be less than 2, this ensuring that ammonium nitrate reacts completely to the double salt with two molecules of ammonium nitrate and one molecule of ammonium sulphate. Salts of trace elements and filling agents may be added to the nitrate-sulphate solution to improve physical-mechanical properties and nutritional value of the granulate.
