Studies on the screw granulation of fertilizers on the base of urea and calcium sulfate adduct
Journal Title: CHEMIK nauka-technika-rynek - Year 2012, Vol 66, Issue 5
Abstract
Results of studies on preparation possibility of fertilizers of calcium sulfate and urea type from phosphogypsum with screw granulation method are presented. One screw extruder was used in the studies. It was found that products of high degree of urea conversion into the adduct form (over 80%) can be obtained by extrusion. The prepared granular product had very high mechanical strength.
Authors and Affiliations
Mieczysław Borowik, Przemysław Malinowski, Andrzej Biskupski, Michał Dawidowicz, Sebastian Schab, Piotr Rusek
Keywords
Related Articles
- EP ID EP155988
- DOI -
- Views 85
- Downloads 0
Electrodeposition Coatings – the perfect symbiosis of water/electro/paint chemistry
Electrodeposition coatings are – since 5 decades – the basis for good corrosion protection of industrial goods, especially known worldwide for the production of passenger cars. In contrast to the application of most o...
Microstructure of sodium tripolyphosphate obtained by spry-kiln method
Sodium tripolyphosphate was prepared by thermal intermolecular dehydration of a spray dried mixture of sodium phosphates, so that Na/P was 1.67. The results indicate that calcination temperature is the controlled paramet...
Wykorzystanie rezultatów badawczych foresightu przy wspomaganiu decyzji strategicznych w przedsiębiorstwach
W ostatnich czterech latach w Polsce zrealizowano lub rozpoczęto realizację kilkudziesięciu projektów foresightu technologicznego lub regionalnego, finansowanych ze środków Programów Operacyjnych: Wzrost Konkurencyjności...
Wpływ elementów zgarniających w granulatorze talerzowym na przebieg procesu
W pracy przestawiono wyniki badań wpływu łopatek granulacyjnych na wymiar cząstek otrzymanego granulatu, całkowity czas granulacji oraz wydajność procesu. Proces prowadzono w granulatorze talerzowym o średnicy 0,5 m dost...
Assessment of possibility of using sodium liquid glass for removal of the most toxic metals: Pb, Hg, Cd from contaminated ecosystems
Three most toxic metals (Pb, Hg and Cd) were characterized, considering their impact on organisms and environment. Turbidimetric method that consists in obtaining of dissolved colloidal silicate for assessment of possibi...