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HYDRATE OF RARE EARTH METAL SULFATE, METHOD FOR PRODUCING SAME, AND CHEMICAL THERMAL STORAGE MATERIAL UPDATE

外国特許コード F180009635
整理番号 5274
掲載日 2018年11月20日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP086634
国際公開番号 WO 2017099197
国際出願日 平成28年12月8日(2016.12.8)
国際公開日 平成29年6月15日(2017.6.15)
優先権データ
  • 特願2015-241182 (2015.12.10) JP
発明の名称 (英語) HYDRATE OF RARE EARTH METAL SULFATE, METHOD FOR PRODUCING SAME, AND CHEMICAL THERMAL STORAGE MATERIAL UPDATE
発明の概要(英語) The problem of the invention is to provide a compound useful as a chemical thermal storage material that is inexpensive, highly safe, has high reproducibility even when reacted repeatedly (high repetition durability), and also makes it possible to proceed reversibly with heat storage and heat release even in a relatively low temperature range. The invention is a hydrate of a rare earth metal sulfate having a characteristic peak at a specific diffraction angle (2θ) in an x-ray diffraction pattern measured using λ=1.5418Å copper radiation through a monochromator.
従来技術、競合技術の概要(英語) BACKGROUND ART
Current, such as Japanese plants 100-250 degrees in the exhaust heat of the large amount of wasted. Such exhaust heat accumulation, effective utilization of energy can be activated and, as a result, the use of fossil fuels is believed to reduce the amount of.
Above point of view, the prior art, with the heat storage techniques have been developed. For example, organic latent-heat storage using latent heat of fusion of the heat storage material but the technique has been developed, and high cost due to the heat storage density is low (for example, non-patent document 1) are.
Disclosed in Patent Document @num@ is an image processing apparatus, for detecting a difference between two images of the @num@ when, one of @num@ and adjust the displacement of the image. For example, about 100°C or more in a temperature range of the heat storage and heat can be supplied as a reaction system, as shown in the following Table 1 solid/gas reaction system has been studied. In addition, the table 1, in terms of safety and versatility of the benefits, a system for using the vapor as the gas components are enumerated.
TABLE 1
1-3 is a reaction system of Table 1, the equilibrium temperature is promising but relatively at a low point, the hydration reaction is a reverse reaction is almost does not progress, the heat supply cannot be performed. Therefore, this is an industrially effective reaction system and it is not considered. In addition, 3 used in the reaction system CuO is expensive, high from the viewpoint of cost problem.
In addition, the reaction system is 4-6, the reaction proceeds reversibly. Further, the reaction system is 4-6, low cost, safety, non-corrosive and relatively promising from the viewpoint of certain. However, as is clear from table 1, the heat storage operation (dehydration reaction) the reaction system temperature is 4-6 higher than 250°C, the reaction system is 4, also in the durability in a case where repeated use of the problem.
In this way, the chemical heat storage material used has not yet been in practical use yet embodiment of the present invention (the reaction system 4 of the MgO/H2 Ofor non-patent document 2, the reaction system 5 of LaOOH/H2 ONon-patent Document 3 for reference).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • HATADA, Naoyuki
  • UDA, Tetsuya
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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