Cold trap for the purification of liquid metals containing dissolved impurities
AssigneeCommissariat a l'Energie Atomique
InventorChristian Latge
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Abstract
Cold trap for the purification of liquid metals containing dissolved impurities comprises several independently operating cooling modules, so as to bring about the crystallization of impurities, a liquid metal supply pipe, a purified liquid metal discharge pipe and a series of filter assemblies arranged in a staggared manner and on which the impurities crystallize. The cold trap is particularly suitable for the purification of the molten sodium used in nuclear power stations.
Claims8
A liquid metal purification cold trap comprising a reservoir pipe for supplying the liquid metal to be purified and linked with the intake of the reservoir, a pipe for discharging the purified metal linked with the outlet of the reservoir, a plurality of independently operating cooling means around said reservoir, and in series along the reservoir and, in the reservoir, a plurality of filter assemblies having perforated bases lined with metal wool, the filter assemblies being arranged perpendicular to the overall direction of the outflow of the liquid metal to be purified, being spaced from one another and each defining an opening, the openings being staggered so so as to permit a staggered outflow of the liquid metal in the reservoir.
Dependencies are inferred from the claim text.