B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/96 (2006.01) B01D 53/14 (2006.01) B01D 53/50 (2006.01) C01B 17/60 (2006.01) C01D 5/16 (2006.01)
Patent
CA 2402057
The present invention describes a procedure for the removal of sodium sulphate from a phosphate solution that has been used for absorption of SO2 from flue gases, whereby a precipitate forms when the absorption solution is regenerated by evaporation. In this procedure a part of the precipitate is separated from its solution and treated with water and SO2 for transformation of disodium-hydrogen phosphate into monosodium dihydrogen phosphate in the aqueous solution, whereby the sodium sulphate remains undissolved and is removed by filtration, whereafter the filtrate is added back to the main process.
La présente invention concerne un procédé d'élimination du sulfate de sodium d'une solution de phosphate qui a été utilisée en vue d'absorber du SO2 de gaz de carneau. Au cours dudit procédé, un précipité se forme lorsque la solution d'absorption est régénérée par évaporation. Dans ce procédé, une partie du précipité est séparée de sa solution et est traitée avec de l'eau et du SO2 pour permettre la transformation du phosphate disodique en phosphate monosodique dans la solution aqueuse. Le sulfate de sodium demeure non dissout et est éliminé par filtration, puis le filtrat est ajouté en retour au processus principal.
Borden Ladner Gervais Llp
Erga Olav
LandOfFree
Process for purifying aqueous buffer solutions 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 purifying aqueous buffer solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purifying aqueous buffer solutions will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1689412