| 摘要 |
PURPOSE:To produce calcium tetraphosphate, especially useful as a raw material for calcium phosphate for organisms in high purity and large amount, compared with a conventional drying method or a mechanochemical powdering method. CONSTITUTION:This wet mass-producing method of calcium tetraphosphate is to carry out wet synthesis from a calcium feed raw material and a phosphorus feed raw material so that a molar ratio Ca/P of the calcium feed raw material to the phosphorus feed raw material become >2.00 and <=2.10 in an aqueous solution kept to <=30 deg.C, providing raw material slurry, dehydrate and dry the resultant slurry and calcine the dried material at 400-1200 deg.C and further bake the calcined material at 1300-1500 deg.C. |
