Method of defluorinating phosphoric acid

Details Method of defluorinating phosphoric acid Method of defluorinating phosphoric acid

C - Chemistry, Metallurgy

01

B

23/72

C01B 25/18 (2006.01) A23K 1/175 (2006.01) C01B 25/234 (2006.01)

Patent

CA 1043536

A METHOD OF DEFLUORINATING PHOSPHORIC ACID ABSTRACT OF THE DISCLOSURE A method of defluorinating phosphoric acid contain- ing fluorine compounds which are present particularly in quan- tities of about 0.3% by weight of fluorine relative to phos- phoric acid, expressed as P2O5, wherein the final product contains less than 10 p.p.m. of fluorine relative to phos- phoric acid, expressed as P2O5. Phosphoric acid, in solution in an organic solvent which is only slightly miscible with water, is washed with an aqueous solution of a soluble compound of one of the metals Al, Fe, Ti or Zr; an aqueous phase containing the fluorine compounds is separated; and an organic phase is collected, from which the solvent and the purified phosphoric acid are regenerated. Phosphoric acid defluorinated by the method of the invention may be used for nutritional purposes.

233287

Affiliated with

Also associated with

Rating

Method of defluorinating phosphoric acid 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 defluorinating phosphoric acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of defluorinating phosphoric acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-383946