PRODUCTION OF LIME NITROGEN-BASED FERTILIZER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a lime nitrogen-based fertilizer excellent in productivity without lowering the nitrogen content of the lime nitrogen. SOLUTION: This method for producing a lime nitrogen-based fertilizer is to slake quick lime in the lime nitrogen with steam while keeping the quick lime in the lime nitrogen at >=80 deg.C temperature. The method preferably comprises adding slaking water in an amount so as to react with the quick lime in the lime nitrogen and form steam from the total amount to the lime nitrogen at >=80 deg.C temperature and more preferably comprises keeping a mixture in which the slaking water in an amount of 5-20 pts.wt. based on 100 pts.wt. of the lime nitrogen is added thereto at >=80 deg.C temperature.