Title:
EXTRACTION OF SOLUBLE PHOSPHATE FROM NATURAL PHOSPHATE OF IRON AND ALUMINUM BY USE OF CARBONATE OF ALKALI METAL AND HYDROXIDE SOLUTION
Document Type and Number:
Japanese Patent JPS6054908
Kind Code:
A
Abstract:
A process for production of alkali metal phosphates from material containing iron and aluminium phosphates comprises leaching the said material with alkali metal carbonate solution to produce a leachate containing dissolved phosphates, and recovering alkali metal phosphates from the leachate. In a preferred embodiment, the carbonate leach is followed by further leaching wth alkali metal hydroxide to effect further dissolution of phosphates from the material, before recovering alkali metal phosphates from the leachate.
Inventors:
GURIFUISU TOOMASU
Application Number:
JP16297984A
Publication Date:
March 29, 1985
Filing Date:
August 03, 1984
Export Citation:
Assignee:
GURIFUISU TOOMASU
International Classes:
C01B25/01; C01B25/30; (IPC1-7): C01B25/30
Attorney, Agent or Firm:
Hideto Asamura
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