Process for producing a phosphate of the lanthanoids, and...

Details Process for producing a phosphate of the lanthanoids, and... Process for producing a phosphate of the lanthanoids, and...

2007-09-18

2007-09-18

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Rare earth compound

Reexamination Certificate

active

11012112

ABSTRACT:
A process for producing a phosphate of the lanthanoids is described. The process is based on a two-jet precipitation, starting from separate reservoirs of a rare earth salt solution and a phosphate solution which are introduced simultaneously by separate feedlines into an aqueous acidified initial charge with stirring at a pH of 0≦pH≦1. After the solutions are added, the pH is raised to a pH of >2 to complete the phosphate precipitation.

REFERENCES:
patent: 4423349 (1983-12-01), Nakajima et al.
patent: 5091110 (1992-02-01), Fan et al.
patent: 5340556 (1994-08-01), Collin et al.
patent: 5415851 (1995-05-01), Kimura et al.
patent: 5470503 (1995-11-01), Braconnier
patent: 5725800 (1998-03-01), Hugeunin
patent: 5746944 (1998-05-01), Braconnier
patent: 2003/0232005 (2003-12-01), Okada et al.
patent: 0 685 549 (1995-12-01), None
patent: 0 751 201 (1997-01-01), None
patent: 0 818 416 (2000-09-01), None
patent: 1 108 772 (2001-06-01), None
Abstract, JP 9-296168 (Nov. 18, 1997).

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