Distillation: processes – separatory – Adding material to distilland except water or steam per se – At least two materials
Patent
1986-12-18
1988-06-07
Bascomb, Wilbur
Distillation: processes, separatory
Adding material to distilland except water or steam per se
At least two materials
203 84, 423 73, 423 76, 423492, B01D 340, C01G 2504, C01G 2704
Patent
active
047494484
ABSTRACT:
This is a molten salt extractive distillation process for separating hafnium from zirconium. It utilizes at least principally a ZnCl.sub.2 --Ca/MgCl.sub.2 molten salt solvent, and preferably ZnCl.sub.2 --Ca/MgCl.sub.2 in a near 95-15 mixture. The extraction column is preferably run about 380.degree.-420.degree. C. at about one atmosphere and stripping is preferably done at about 385.degree.-450.degree. C. utilizing an inert gas carrier.
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McLaughlin David F.
Stoltz Richard A.
Bascomb Wilbur
Stoltz R. A.
Westinghouse Electric Corp.
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