Abstract: A method for separating elemental phosphorus from iron oxide-containing and phosphate-containing materials includes at least the following steps: providing at least one iron oxide-containing and phosphate-containing material, adding at least one aluminum carrier to the at least one iron oxide-containing and phosphate-containing material and melting the at least one aluminum carrier together with the at least one iron oxide-containing and phosphate-containing material to form an aluminum-containing and optionally aluminum oxide-containing phosphate slag melt, reacting the aluminum-containing and optionally aluminum oxide-containing phosphate slag melt to elemental, gaseous phosphorus, iron and Al2O3-containing slag in a melting vessel, withdrawing the elemental, gaseous phosphorus and tapping off the iron and the Al2O3-containing slag.

Abstract: For a method for granulating molten material, in particular slags, in which the molten material is introduced into a granulating chamber in which water is held as a cooling liquid, wherein the molten material is preferably quenched and granulated with evaporation of the water, an acid is added to the water.