Abstract
Structural steels are susceptible to dissolution when exposed to liquid Pb—17Li. In order to remove the corrosion products transferred into the alloy, purification systems may be used. The efficiency of a cold trap fitted to the Anapurna liquid metal loop has been studied. The removal of nickel from solution in Pb—17Li has been shown to be possible by adding manganese to the Pb—17Li. Experiments carried out with a cold trap temperature of 523 K and an alloy temperature of 673 K have shown that nickel concentration as low as 1 wppm may be achieved by this method. The result is interpreted by the formation of nickel—manganese compounds deposited in the cold parts of the trap. This observation which suggests an interaction between both nickel and manganese in Pb—17Li is confirmed by equilibrium tests of Ni Mn alloys with Pb—17Li.
Published Version
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