Title:
【発明の名称】第4リン酸カルシウムの大量湿式製造方法
Document Type and Number:
Japanese Patent JP3371539
Kind Code:
B2
Abstract:
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.
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Inventors:
Masahiro Hirano
Application Number:
JP10939894A
Publication Date:
January 27, 2003
Filing Date:
May 24, 1994
Export Citation:
Assignee:
Mitsubishi Materials Corporation
International Classes:
A61L27/00; A61K6/838; C01B25/32; C04B12/02; (IPC1-7): C01B25/32; A61L27/00
Domestic Patent References:
| JP5319812A |
Attorney, Agent or Firm:
Hajime Sakai