Abstract
Calcium aluminium phosphate fertilizers prepared by calcination of Christmas Island C-grade ore at temperatures between 400°C and 600°C are amorphous and soluble in neutral ammonium citrate. Hydrothermal treatment of calcines at temperatures between 60°C and 150°C for periods of up to one year resulted in various amounts of reversion to an insoluble form due to rehydroxylation and recrystalization of crandalite. The rate at which reversion occurs increases with increasing temperature of hydrothermal treatment. Reversion did not occur within one year at 45°C, and is therefore unlikeley to affect fertilizer performance in the field.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
