INTRODUCTIONThe present work is prepared based on Contract № 699/2013/PVFCCo/NCPTNIIK/D_URedt. « 17 » _December_2013 for the research work «Granulation technologyof urea based compound fertilizers in High Speed Drum Granulator» for PetroVietnamFertilizer & Chemicals Corporation, Vietnam.The subject of research is production method of fertilizers in High Speed DrumGranulator.The purpose of work is development of production method of urea basedcompound fertilizers in High Speed Drum Granulator.The purposes of the research work are the following:- Granulation tests of the following four formulations of multicomponent compoundfertilizers in laboratory High Speed Drum Granulator designed by NIIK:
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