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    • 83. 发明授权
    • Hydrogen production process
    • 氢气生产过程
    • US09457334B2
    • 2016-10-04
    • US14759104
    • 2014-01-09
    • Hitachi Zosen CorporationKyoto University
    • Susumu HikazudaniAtsushi WakuiKazuyuki HiraoToshimi FukuiJunko NakamotoHeidy H. Visbal Mendoza
    • H01B1/02B01J19/12H01M8/06C01F7/16C01B3/06
    • B01J19/123C01B3/061C01F7/164C01P2002/72C01P2002/84H01M8/0606Y02E60/36
    • The present invention provides a hydrogen production process, which is capable of producing hydrogen, which is a clean source of energy, simply and conveniently without using conventionally-used ammonia, with an extremely high level of safety. In accordance with the present invention, hydrogen is produced by substituting hydrogen for free oxygen in mayenite (Ca24Al28O644+.2O2−) to obtain hydrogen-substituted mayenite (Ca24Al28O644+.4H−) and reacting the resultant hydrogen-substituted mayenite (Ca24Al28O644+.4H−) with water to produce hydrogen, and hydrogen is produced by substituting hydrogen for free oxygen in mayenite (Ca24Al28O644+.2O2−) to obtain hydrogen-substituted mayenite (Ca24Al28O644+.4H−), irradiating the resultant hydrogen-substituted mayenite (Ca24Al28O644+.4H−) with ultraviolet rays to obtain conductive mayenite (Ca24Al28O644+.4e−), and reacting the resultant conductive mayenite (Ca24Al28O644+.4e−) with water to produce hydrogen.
    • 本发明提供一种氢生产方法,其能够以非常高的安全水平简单且方便地生产作为清洁能源的氢气,而不使用常规使用的氨。 根据本发明,通过在钙铝石(Ca24Al28O644 + .2O2-)中用氢代替游离氧,得到氢取代的钙铝石(Ca24Al28O644 + .4H-),并使所得氢取代的钙铝石(Ca24Al28O644 + .4H-) 用氢气生成氢,通过在钙铝石(Ca24Al28O644 + .2O2-)中用氢代替游离氧,得到氢取代的钙铝石(Ca24Al28O644 + .4H-),照射得到的氢取代的钙铝石(Ca24Al28O644 + .4H-) 用紫外线获得导电的钙铝石(Ca24Al28O644 + .4e-),并使所得的导电钙铝石(Ca24Al28O644 + .4e-)与水反应产生氢。
    • 85. 发明授权
    • Method for preparing mayenite-containing oxide and method for preparing electroconductive mayenite-containing oxide
    • 制备含钙锰氧化物的方法及其制备含导电钙铝氧化物的方法
    • US08377413B2
    • 2013-02-19
    • US13192568
    • 2011-07-28
    • Kazuhiro ItoSatoru WatanabeNaomichi MiyakawaSetsuro ItoKazunari Watanabe
    • Kazuhiro ItoSatoru WatanabeNaomichi MiyakawaSetsuro ItoKazunari Watanabe
    • C01F7/00
    • C01F7/164C01P2006/40
    • To provide a method for preparing a mayenite-containing oxide containing a mayenite type compound and having a hydride ion density of at least 1×1018/cm3 without need for expensive facilities, control of complicated reaction conditions or a long period of reaction time. A method for preparing a mayenite-containing oxide, which comprises a firing step of heating a starting material having a molar ratio of CaO:Al2O3 being from 9:10 to 14:5 based on the oxides at a temperature of from 900 to 1,300° C. to obtain a fired powder and a hydrogenation step of firing the fired powder at a temperature of at least 1,210° C. and lower than 1,350° C. in a hydrogen-containing gas having an oxygen partial pressure of at most 1,000 Pa to obtain a mayenite-containing oxide containing a mayenite type compound and having a hydride ion density of at least 1×1018/cm3, and a method for preparing an electroconductive mayenite-containing oxide, which comprises irradiating the obtained mayenite-containing oxide with an ultraviolet ray etc. to obtain a mayenite-containing oxide containing an electroconductive mayenite type compound.
    • 为了提供一种制备含有钙铝石型化合物并且氢化物离子密度为至少1×1018 / cm3而不需要昂贵的设备,控制复杂的反应条件或长时间的反应时间的钙铝氧化物的方法。 一种含有钙铝石的氧化物的制造方法,其特征在于,在900〜1300℃的温度下,对CaO:Al 2 O 3的摩尔比为9:10〜14:5的原料进行加热, 以获得烧制粉末和氢化步骤,在氧分压至多为1000Pa的含氢气体中,在至少1,210℃且低于1350℃的温度下焙烧烧制粉末至 得到含有钙铝石型化合物,含氢离子密度为1×1018 / cm3以上的含钙锰矿的氧化物,以及制造含导电性钙铝的氧化物的方法,其包括用紫外线照射所得到的含有钙铝的氧化物 以获得含有导电钙铝石型化合物的含有钙铝的氧化物。
    • 87. 发明申请
    • PROCESS FOR PRODUCING AN OXIDE
    • 生产氧化物的方法
    • US20110182803A1
    • 2011-07-28
    • US13080769
    • 2011-04-06
    • Kazuhiro ITOSatoru WatanabeKazunari WatanabeSetsuro Ito
    • Kazuhiro ITOSatoru WatanabeKazunari WatanabeSetsuro Ito
    • C01F7/16
    • C01F7/164C01P2004/61C01P2006/40
    • The present invention relates to a method for producing an oxide containing a conductive mayenite type compound and having an electron concentration of 1×1018/cm3 or more, from a raw material which is a combination of a calcium compound and an aluminum compound or is a compound containing calcium and aluminum, each having a molar ratio of calcium oxide and aluminum oxide ranging from 9:10 to 14:5 in terms of the oxides, the method including the steps of: heating and holding the raw material at 900 to 1,300° C. to produce a calcined powder containing at least one oxide selected from the group consisting of a calcium aluminate, calcium oxide and aluminum oxide; and heating and holding the calcined powder at 1,200° C. to less than 1,415° C. under a reduction atmosphere in an inert gas atmosphere or a vacuum atmosphere each having an oxygen partial pressure of 1,000 Pa or less.
    • 本发明涉及由钙化合物和铝化合物的组合的原料生成含有导电性钙铝石型化合物的氧化物的电子浓度为1×1018 / cm3以上的氧化物的方法, 包含钙和铝的化合物,其氧化物和氧化铝的摩尔比为9:10至14:5,氧化物的方法包括以下步骤:将原料加热至900至1300℃ 以制备含有选自铝酸钙,氧化钙和氧化铝中的至少一种氧化物的煅烧粉末; 在惰性气体气氛或氧气分压为1000Pa以下的真空气氛中,在还原气氛下,将煅烧后的粉末在1,200℃加热保持至小于1415℃。
    • 90. 发明授权
    • Electroconductive 12CaO—7Al2O3 and compound of same type, and method for preparation thereof
    • 导电性12CaO-7Al2O3和相同类型的化合物及其制备方法
    • US07507289B2
    • 2009-03-24
    • US10561968
    • 2004-02-12
    • Hideo HosonoMasahiro HiranoKatsuro HayashiMasashi MiyakawaIsao Tanaka
    • Hideo HosonoMasahiro HiranoKatsuro HayashiMasashi MiyakawaIsao Tanaka
    • C30B1/10
    • H01B1/08C01F7/164C01F7/166C01P2006/40C04B35/44C04B35/653C04B2235/3208C04B2235/3213C04B2235/604C04B2235/6587C04B2235/664C04B2235/787C04B2235/94
    • In a solid solution system of Al2O3 and CAO or SrO, it has been difficult to obtain a material having a high electrical conductivity (>10−4 S·cm−) at room temperature.A compound is provided in which electrons at a high concentration are introduced into a 12CaO.7Al2O3 compound, a 12SrO.7Al2O3 compound, or a mixed crystal compound containing 12CaO.7Al2O3 and 12SrO.7Al2O3. The compound formed by substituting all the free oxygen ions with electrons is regarded as an electride compound in which [Ca24Al28O64]4+(4e−) or [Sr24Al28O64]4+(4e−) serves as a cation and electrons serve as anions. When a single crystal or a hydrostatic pressure press molded material of a fine powder thereof is held at approximately 700° C. in an alkaline metal vapor or an alkaline earth metal vapor, melt of a hydrostatic pressure press molded material of a powder is held at approximately 1,600° C. in a carbon crucible, followed by slow cooling for solidification, or a thin film of the compound held at approximately 600° C. is implanted with rare gas ions, a great number of the free oxygen ions can be substituted with electrons.
    • 在Al 2 O 3和CAO或SrO的固溶体系中,难以在室温下获得具有高电导率(> 10 -4 S.cm-)的材料。 提供了一种化合物,其中将高浓度的电子引入12CaO.7Al2O3化合物,12SrO.7Al2O3化合物或含有12CaO.7Al2O3和12SrO.7Al2O3的混合晶体化合物。 通过用电子代替全部游离氧离子形成的化合物被认为是其中[Ca24Al28O64] 4+(4e-)或[Sr24Al28O64] 4+(4e-)用作阳离子的电子化合物,电子用作阴离子。 当在碱金属蒸气或碱土金属蒸气中将其细粉末的单晶或静水压成型材料保持在约700℃时,将粉末的流体静压加压成型材料的熔体保持在 在碳坩埚中约1600℃,然后缓慢冷却固化,或者在约600℃保持的化合物薄膜注入稀有气体离子,大量的游离氧离子可被 电子。