C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/06 (2006.01) C09K 5/06 (2006.01)
Patent
CA 2081378
(57) Abstract The invention relates to lalent heat storage agents for storing thermal energy, The proposal is for the use of mixtures or var- ious perchlorates or perchlorates-hydrates with other organic substances or inorganic salts or hydrate salts. As is known, pure lithium perchlorate trihydrate melts at a temperature of 94.3 °C and, with a value of 306 J/g, has a markedly high melting en- thalpy. Its density of 1.89 also gives the very high volume-specific figure of 578 J/cm3. Because, however, its melting point is close to the boiling point of water it is not of practicable use in upressurised systems in which water is the heat conveyor. However, the various mixtures proposes by the invention have lower melting points in a broad temperature range, also with very considerable melting enthalpies which are almost the same or not very much lower than that of the pure initial sub- stances.
Hoermannsdoerfer Gerd
Smart & Biggar
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