Process for treating an aqueous kf waste stream and for...

C - Chemistry – Metallurgy – 02 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C02F 1/58 (2006.01) B01D 61/44 (2006.01) C01B 7/19 (2006.01) C01D 1/38 (2006.01) C01D 3/14 (2006.01) C01D 3/16 (2006.01) C25B 1/24 (2006.01)

Patent

CA 2199723

The present invention is directed to a process for treating an aqueous KF waste stream comprising at least one treatment step selected from the group consisting of inert gas stripping the aqueous KF waste stream, passing said waste stream through a carbon bed, concentrating said waste stream or a combination thereof to remove dissolved organic compounds. The present invention is also directed to subjecting the treated KF waste stream to electrodialytic splitting in a water splitting cell to form HF and either KOH or an acid depleted salt stream. The dilute HF can be concentrated to a concentrated and commercially viable product.

La présente invention se rapporte à un procédé de traitement d'un courant résiduaire aqueux de fluorure de potassium (KF), comprenant au moins une étape de traitement ou une combinaison d'étapes choisie parmi celles consistant à soumettre le courant résiduaire aqueux de KF à une extraction par gaz inerte, à faire passer ledit courant à travers un lit de charbon, et à concentrer ce courant, afin d'en extraire des composés organiques dissous. Le procédé de la présente invention consiste également à soumettre le courant résiduaire de KF traité à une séparation par électrodialyse dans une cellule de séparation à eau pour former du fluorure d'hydrogène (HF) et de l'hydroxyde de potassium (KOH) ou un courant salin appauvri en acide. L'HF dilué peut être concentré afin de former un produit concentré et commercialisable.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for treating an aqueous kf waste stream and for... 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 treating an aqueous kf waste stream and for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for treating an aqueous kf waste stream and for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1876919

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.