Title:
METHOD FOR MODIFYING ACID SODIUM METAPHOSPHATE
Document Type and Number:
Japanese Patent JPH04175214
Kind Code:
A
Abstract:
PURPOSE: To modify acid sodium metaphosphate so as to exhibit excellent solubility and fluidity with low hygroscopicity by granulating powdery acid sodium metaphosphate with a high P2O5 content under specific conditions and providing a granular form.
CONSTITUTION: To powdery acid sodium metaphosphate (with 72-77% P2O5 content), are added 2-15wt.%, preferably 3-10wt.% water as a binder. The resultant mixture is then granulated with a fluidizing gas (air, N2, CO2, etc.) with ≤20g/m3, preferably ≤10g/m3 moisture content according to a fluidized granulating method (the operating temperature is preferably 40-80°C) to provide granules having 0.5-1.0g/cc bulk density.
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| WO/2001/042133 | METHOD FOR PRODUCING LITHIUM HEXAFLUOROPHOSPHATE |
Inventors:
ODA MASAOKI
NAKATSUCHI KIYOSHI
NOJIRI YASUO
NAKATSUCHI KIYOSHI
NOJIRI YASUO
Application Number:
JP30301890A
Publication Date:
June 23, 1992
Filing Date:
November 08, 1990
Export Citation:
Assignee:
PHOSPHORUS CHEM IND
International Classes:
C01B25/445; (IPC1-7): C01B25/445
Attorney, Agent or Firm:
Noriaki Miyakoshi
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