Method of stabilization of a mixture of nitrates and nitrites molten metal which can be used as heat-transfer fluid and thus obtained were stabilized

摘要

The present invention relates to a process for stabilizing a mixture of molten metal nitrates and nitrites, which can be used as heat-transfer fluid, as well as the mixture thus stabilizes obtained. / p & & p & the process is characterizes by the fact that there is added to the mixing a quantity of alkali metal hydroxide such as the value of the logarithm of the ratio p (ho) oh (or p (ho) is the partial pressure of water vapour expressed in the atmosphere and oh the concentration of the hydroxide ions expressed in moleskg) is between a value b corresponding to the dismutation of nitrites in nitrate and nitrogen monoxide and a value corresponding to the appearance of the peroxides, the values a and b being determined for a ratio nitratenitrite, a temperature, and the partial pressures of the gas, constituting the cover of the mixture, deals. / p & & p & application in particular as a heat-conducting fluid.