Abstract: A method for the management of phosphogypsum consists in that a reactor (2) is charged with apatite and/or phosphorite phosphogypsum and with an aqueous or ammoniacal solution of ammonium carbonate and/or bicarbonate from a pre-reactor (1), at 1: (0.1-4) ratio of phosphogypsum to the aqueous or ammoniacal solution of ammonium carbonate and/or bicarbonate, the entire contents are stirred at ?10° C. to 200° C.
Type:
Grant
Filed:
September 14, 2017
Date of Patent:
February 16, 2021
Assignee:
FERIN SP. Z O.O.
Inventors:
Agata Toczek, Wlodzimierz Merka, Patryk Gosciniak, Maciej Gosciniak
Abstract: A method for complex treatment of phosphogypsum comprising crushing of phosphogypsum and its washing with a solution of sulphuric acid, concentration 2-15%, and stirring at 50-80? C.