Salt slags

Smirnov, M. V., Komarov, V. E., and Baraboshkin, A. N., Proc. All-Union Conf. Phys. Chem. Molten Salts Slags, Moscow, 1960. Engl. Transl. by U.S. At. Energy Comm. AEC-TR 5948 pp. 438-448. 

Salt slags are generated from aluminum and other metal recycling wherein scrap metal is melted in ovens where molten salts, like sodium and potassium chloride, float on top of the metal to prevent its oxidation. The dross (salt slag) includes metal oxide, salt, and elemental metals. 

Finally, there is a method of separating samarium, europium and ytterbium, based on the fact that the metals Sm, Eu, and Yb cannot be produced by metal-lothermic reduction" of their halides. When a mixmre of anhydrous rare-earth halides is reduced with calcium, the halides of Sm, Eu, and Yb are not reduced and remain in the salt slag. They can subsequently be separated from this (Gupta and Krishnamurthy 2005). 

Jaw crushers These are used to break up substances with medium to extreme hardness ratings as well as brittle to tough materials, such as bakelite, bauxite, concrete, dolomite, ores, feldspar, ferroalloys, granite, glass, limestone, gravel, coal, coke, corundum, synthetic resins, quartz, salts, slag, silicates, sintered products, and many other substances. 

Table F.2. Container material for handling molten salts, slags and fluxes ... 

An additional path for the removal of a small amount of heat from the reactor is provided by organizing the free convection of the ambient environmental air in the annular gap of the double-walled reactor vessel. Under normal operating conditions, the application of such a technical feature ensures the formation of a thin layer of frozen salt (slag lining) on the vessel inner surface, protecting the vessel against corrosion. Under a loss of heat sink accident, this feature ensures passive removal of the residual heat. 

The high melting point of salt coolants complicates the start-up and operation of a nuclear installation however, the same feature offers certain benefits related to the formation of a salt slag layer on the inner surface of the reactor vessel, which minimizes corrosion interactions between the vessel and the circulating salt coolant retention of the salt in the reactor at hypothetical leaks also improves, as well as operating conditions of the armature based on freeze stop valves ... 

The reactor vessel cooled on the outside by natural air circulation, has no side inlets or outlets. All of them are located only in the reactor upper head (CPS rod drives, input and output air pipelines, etc ). A double vessel is used for safety and to ensure that a thin layer of salt (slag lining) protecting the vessel against corrosion is frozen on the vessel inner surface. To reduce the neutron flux incident on the vessel, shielding with a neutron absorber, for example of boron-containing steel, can be installed along the vessel surface. 

Ray HS (2006) Introduction to melts molt salts, slags and glasses. Allied Publishers, New Delhi... 

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