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C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
Abstract
Granules are produced from finely ground raw material such as N-P-K fertiliser, natural phosphates, basic slag, limestone and similar water-insoluble materials using a soln. of a binding agent in a hot liquid. A large proportion of the heat generated in the grinding operation is deliberately retained in the material to assist the coating operation when binding solution is applied. No steam is needed for the binding process so avoiding agglomeration and increasing product yield by 10-15%.
FR7139505A1971-11-041971-11-04Granulation of dry solids - using hot liquid binder and retaining heat from grinding
ExpiredFR2159587A5
(en)
Manufacturing procedure of phosphate fertilizer, granulated based on enriched superphosphate (Machine-translation by Google Translate, not legally binding)
Procedure to increase the acorresistent capacity of granulated fertilizers improving their appearance. (Machine-translation by Google Translate, not legally binding)