Process for preparing pure alkali and/or ammonium tungstate...

Details Process for preparing pure alkali and/or ammonium tungstate... Process for preparing pure alkali and/or ammonium tungstate...

C - Chemistry, Metallurgy

01

G

C01G 41/02 (2006.01) C01G 39/02 (2006.01) C01G 39/06 (2006.01) C01G 41/00 (2006.01) C22B 34/34 (2006.01) C22B 34/36 (2006.01)

Patent

CA 2259461

The invention concerns a process for preparing pure alkali and/or ammonium- tungstate solutions in particular from alkali tungstate solutions contaminated with silicon, phosphorus, arsenic, tin, antimony, vanadium, tantalum, niobium, titanium and molybdenum. The solution is acidified and the precipitate produced without the addition of precipitating agents or auxiliary agents is then filtered.

L'invention concerne un procédé de préparation de solutions alcalines et/ou à base d'ammonium et de tungstate pures, issues notamment de solutions de tungstate alcalines, contaminées par du silicium, du phosphore, de l'arsenic, de l'étain, de l'antimoine, du vanadium, du tantale, du niobium, du titane et du molybdène. La solution est acidifiée et le précipité obtenu sans adjonction d'agents de précipitation ou d'auxiliaires de précipitation est ensuite filtré.

Affiliated with

Also associated with

Rating

Process for preparing pure alkali and/or ammonium tungstate... 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 preparing pure alkali and/or ammonium tungstate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing pure alkali and/or ammonium tungstate... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1718290