Process for producing alkali metal polyphosphates

Details Process for producing alkali metal polyphosphates Process for producing alkali metal polyphosphates

1998-08-05

1999-09-21

Langel, Wayne

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423314, 423315, C01B 2539, C01B 2541, C01B 2542, C01B 25445

Patent

active

059550473

ABSTRACT:
A process for producing an alkali metal polyphosphate, comprising heating a solution comprising a solvent, alkali metal ions, phosphate ions, and 3 to 50% by weight of organic matter, wherein the solution contains, in total, 5 to 65% by weight of the alkali metal ions and the phosphate ions, and the ratio M/P is 1.0 to 3.0, wherein M is the number of moles of alkali metal ions in the solution and P is the number of moles of orthophosphate ions in the solution, at a temperature of 800.degree. to 1200.degree. C. in the presence of excess air, optionally after the solution is at least partially dried to solid, to produce the alkali metal polyphosphate.

REFERENCES:
patent: 3233967 (1966-02-01), Shen
patent: 3309174 (1967-03-01), Pals
patent: 3382037 (1968-05-01), Shaffery et al.
patent: 3387924 (1968-06-01), Heymer et al.
patent: 3682588 (1972-08-01), Fuchs et al.
patent: 4431620 (1984-02-01), Schenck et al.
patent: 4556525 (1985-12-01), Berglund

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-77306