Method of producing alkali metal phosphate

Details Method of producing alkali metal phosphate Method of producing alkali metal phosphate

1994-12-12

1995-08-22

Langel, Wayne

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

71 34, 423313, 423314, C01B 2530, C01B 25445

Patent

active

054438080

ABSTRACT:
The invention relates to a method for producing alkali metal phosphate, in particular monopotassium phosphate or its aqueous solution, by reacting fertilizer-grade phosphoric acid with alkali metal chloride at 350.degree. . . . 700.degree. C. to produce alkali metal metaphosphate, hydrolyzing thus obtained solid reaction product, removing the insoluble residue containing impurities from the hydrolysis solution in order to achieve a pure solution of alkali metal phosphate, and if further desired, crystallizing and separating the alkali metal phosphate from said aqueous solution.

REFERENCES:
patent: 3347627 (1967-10-01), Shen
patent: 3554729 (1971-01-01), Curless
patent: 3607213 (1971-09-01), Schroeder et al.
patent: 3650684 (1972-03-01), Watson
patent: 3718453 (1973-02-01), Thompson
patent: 3770410 (1973-11-01), Mills et al.
patent: 3784367 (1974-01-01), Moore
patent: 4134964 (1979-01-01), Ehlers et al.
patent: 4158558 (1979-06-01), Thompson et al.
patent: 4885148 (1989-12-01), Erickson et al.
patent: 5055124 (1991-10-01), Nguyen et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 17 (1982) No month available, John Wiley & Sons, pp. 448-453.
Von Wazer, J. R., "Phosphoric Acid and Phosphates", Kirk-Othmer Encyclopedia of Chemical Technology vol. 15, p. 252. (H. F. Mark, John Wiley & Sons, Inc., New York 1968). No month available.

Affiliated with

Also associated with

Rating

Method of producing alkali metal phosphate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing alkali metal phosphate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing alkali metal phosphate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2140232