A method of carrying out a basic separation of calcium nitrate from acids in a solution obtained in the decomposition of mineral phosphate (Machine-translation by Google Translate, not legally binding)

摘要

A method of carrying out an approximate separation of calcium nitrate from the acids in a solution obtained in the decomposition of mineral phosphate, as defined in the specification, by means of nitric acid, which method comprises extracting most of the acid phosphoric and nitric acid of the solution with a polar organic solvent, or a mixture of polar organic solvents, which have a limited miscibility with water, leaving most of the calcium nitrate and a small amount of the acids in the aqueous phase. (Machine-translation by Google Translate, not legally binding)