C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/42 (2006.01) B01D 15/08 (2006.01) B01D 59/30 (2006.01) C22B 3/44 (2006.01) C22B 34/14 (2006.01) G01N 30/58 (2006.01)
Patent
CA 2224116
A method and system for improved ion exchange chromatographic elemental separations of zirconium and hafnium elements and also, if desired, separations of the isotopes thereof from crude zirconium minerals by using improved crude aqueous zirconium (also containing hafnium) chloride feedstock solutions, aqueous chloride eluant solutions, cationic or anionic exchange resins, and reduced ion exchange chromatographic operating temperatures. The method and system of the invention provides improved crude aqueous zirconium chloride feedstock solutions by carbochlorinating zircon sand and hydrolyzing and dissolving the chlorination products under controlled conditions to substantially eliminate cross-polymerization of the carbochlorination products, which undesirably yield inseparable zirconium and hafnium co-polymers during hydrolysis, by inhibiting the hydrolysis exotherm and/or the free acid generation during hydrolysis.
Beleski Richard J.
Byers Charles H.
Francis Timothy Lloyd
Nayak Umesh
Sisson Warren G.
Bereskin & Parr
Westinghouse Electric Corporation
LandOfFree
Zirconium and hafnium separation in chloride solutions using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Zirconium and hafnium separation in chloride solutions using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zirconium and hafnium separation in chloride solutions using... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1446442