C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/26—Phosphates
C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
C01B25/324—Preparation from a reaction solution obtained by acidifying with an acid other than orthophosphoric acid
C—CHEMISTRY; METALLURGY
C05—FERTILISERS; MANUFACTURE THEREOF
C05B—PHOSPHATIC FERTILISERS
C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)