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US 5,205,980 AGranted
Sublimer assembly
AssigneeWestinghouse Electric Corp.
InventorsHani A. Abodishish, R. James Adams
Life of this patent
Estimating the term…
Abstract
A sublimer assembly vaporizes zirconium tetrachloride in a Kroll reduction process. A retort for vaporizing the feed has a sidewall extending from a bottom wall with a peripheral heater adjacent to the sidewall and an internal heater extending through the retort. Substantial contact between the feed and the surfaces of the internal heater and retort sidewall is maintained so that the vaporization rate tends to cycle and the time required to vaporize the feed may be substantially reduced.
Claims6
A sublimer assembly for vaporizing particulates, comprising:
- a retort having a sidewall extending from a bottom wall for containing particulates, the sidewall having an outer surface;
- a peripheral heater adjacent the outer surface of the side wall;
- an interior heater extending through the retort, the interior heater having a plurality of spaced apart members on maximum centers of about one foot from each other, the members having a total surface area of at least about 20% of the surface area of the sidewall of the retort.
Dependencies are inferred from the claim text.