JP2013516531A5 - - Google Patents

Claims (18)

A mixture of alkali metal polysulfides having the general formula (M ¹ _x M ² _(1-x) ) ₂ S _y
[Wherein M ¹ is K, M ² is Na, 0.50 ≦ x ≦ 0.90, and y is 4.0, 5.0, or 6.0]
The said mixture shown by. A mixture of alkali metal polysulfides having the general formula (M ¹ _x M ² _(1-x) ) ₂ S _y
[Wherein, M ¹ and M ² represent Li, Na and K, M ¹ is not the same as M ² , and 0.05 ≦ x ≦ 0.95 and 2.0 ≦ y ≦ 6.0. ]
Use of the mixture represented by the above as a heat transfer fluid or a heat storage fluid. Use of a mixture according to claim 2, wherein M ¹ is K and M ² is Na.   Use of a mixture according to any one of claims 2 or 3, wherein 0.20≤x≤0.95.   Use of a mixture according to any one of claims 2 to 4, wherein 3.0 ≤ y ≤ 6.0. Use of a mixture according to any one of claims 2 to 5, wherein, M ¹ is a K, M ² is Na, 0.20 ≦ x ≦ 0.95 and 3. Said use wherein 0 ≦ y ≦ 6.0. Use of a mixture according to any one of claims 2 to 6, wherein M ¹ is K, M ² is Na, 0.50 ≦ x ≦ 0.90 and y is Said use being 4.0, 5.0 or 6.0. A mixture of an alkali metal polysulfide and an alkali metal thiocyanate having the general formula ((M ¹ _x M ² _(1-x) ) ₂ S _y ) _m (M ³ _z M ⁴ _(1-z) SCN) _{(1 −m)}
[Wherein, 0.05 ≦ x ≦ 1, 0.05 ≦ z ≦ 1, 3.0 ≦ y ≦ 6.0, and the substance amount ratio m is 0.05 ≦ m ≦ 0.95, and Where M ¹ and M ³ are K and M ² and M ⁴ are Na]
The said mixture shown by.   9. The mixture according to claim 8, wherein 0.20 ≦ x ≦ 1.   The mixture according to any one of claims 8 to 9, wherein 0.20≤z≤1.   11. The mixture according to any one of claims 8 to 10, wherein 0.20≤m≤0.80. A mixture according to any one of claims 8 to 11, wherein, M ¹ and M ³ are K, M ² and M ⁴ are Na, 0.20 ≦ x ≦ 1, Said mixture wherein 0.20 ≦ z ≦ 0.95, 3.0 ≦ y ≦ 6.0, and 0.20 ≦ m ≦ 0.95. A mixture according to any one of claims 8 to 12, wherein, M ¹ and M ³ are K, M ² and M ⁴ are Na, 0.50 ≦ x ≦ 1, 0.50 ≦ z ≦ 0.95, y is 4.0, 5.0 or 6.0, and 0.33 ≦ m ≦ 0.80.   Use of the mixture according to any one of claims 8 to 13 as a heat transfer fluid or a heat storage fluid.   A heat transfer fluid or a heat storage fluid comprising the one type of mixture according to any one of claims 8 to 13. A mixture of alkali metal polysulfides having the composition (K _(1-x) Na _x ) ₂ S _z , wherein x is 0.5 to 0.7 and z is 2.4 to 2.9 The mixture.   Use of the mixture according to claim 16 as a heat transfer fluid or a heat storage fluid.   A heat transfer fluid or a heat storage fluid comprising a mixture according to claim 16.