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    • 2. 发明专利
    • Sintered compact of new yttrium oxide and its production
    • 新型氧化铝的烧结及其生产
    • JPH11278935A
    • 1999-10-12
    • JP8771698
    • 1998-03-31
    • Natl Inst For Res In Inorganic MaterialsNgk Insulators Ltd日本碍子株式会社科学技術庁無機材質研究所長
    • SAITO NORIKOIKEGAMI TAKAYASUSAKAI HIROAKIICHIKAWA SHUICHIICHIKAWA AKIMASA
    • H01S3/16C01F17/00C04B35/50
    • PROBLEM TO BE SOLVED: To obtain a sintered compact having a rectilinear transmittance in a definite value or above by including a specific amount of fluorine which exists in a solid solution in crystals.
      SOLUTION: This sintered compact of yttrium oxide has ≥50% linear transmittance and contains at least 10 ppm fluorine which exists in a solid solution in crystals. The sintered compact is obtained by preparing a formed product for baking from yttrium oxide powder containing fluorine and baking the formed product. The yttrium oxide powder is preferably obtained by calcining yttrium carbonate. The fluorine can be added in calcination or preparation of formed product. In this time, a fluororesin such as PTFE or an inorganic fluorine compound, etc., such as ammonium fluoride is used. The fluorine-based substance is preferably added so that content in yttrium oxide powder in preparation of the formed product expressed in terms of fluorine atom becomes 20-2200 ppm.
      COPYRIGHT: (C)1999,JPO
    • 要解决的问题:通过包含存在于晶体中的固溶体中的特定量的氟获得具有一定值以上的直线透射率的烧结体。 解决方案:这种氧化钇烧结体具有> = 50%的线性透射率,并且在晶体的固溶体中含有至少10ppm的氟。 通过制备由含氟的氧化钇粉末烘焙的成形体,烘焙成形体,得到烧结体。 优选通过煅烧碳酸钇获得氧化钇粉末。 可以在煅烧或成型产品的制备中加入氟。 此时,使用诸如氟化铵的氟树脂如PTFE或无机氟化合物等。 优选添加氟类物质,使得以氟原子表示的成形物质的制备中的氧化钇粉末中的含量为20〜200ppm。
    • 3. 发明专利
    • Production of sintered compact of yttrium oxide
    • 生产氧化锆的烧结紧密
    • JPH11278934A
    • 1999-10-12
    • JP8771498
    • 1998-03-31
    • Natl Inst For Res In Inorganic MaterialsNgk Insulators Ltd日本碍子株式会社科学技術庁無機材質研究所長
    • SAITO NORIKOIKEGAMI TAKAYASUSAKAI HIROAKIICHIKAWA SHUICHIICHIKAWA AKIMASA
    • H01S3/16C01B13/32C01F17/00C04B35/50
    • PROBLEM TO BE SOLVED: To reduce dispersion in rectilinear transmissivity by controlling atmosphere in a reaction tank so that a definite equilibrium state is kept between carbon dioxide partial pressure in atmosphere in the reaction tank and carbon dioxide partial pressure in reaction solution while keeping a reaction solution constant within a specific temperature range and carrying out aging of yttrium carbonate. SOLUTION: The temperature of reaction solution of yttrium carbonate during aging is controlled within the range of 25-40 deg.C. Preferable temperature is 30 deg.C and the temperature is controlled within the range of ±3.0 deg.C. Although a method for controlling atmosphere in a reaction tank can be carried out by providing a vent hole having a prescribed size in the upper lid of the reaction tank, forced ventilation is not usually required therefor. It is preferable so as to uniformly produce nucleus of yttrium carbonate in a definite value or above in the reaction tank. A rate enough to uniformly produce nucleus of yttrium carbonate in a definite value or above in the reaction tank and control crystal growth of yttrium carbonate is preferably selected as a stirring rate of yttrium carbonate during aging.
    • 要解决的问题:通过控制反应罐中的气氛来减少直线透射率的分散,使得在保持反应溶液的同时在反应罐中的大气中的二氧化碳分压和反应溶液中的二氧化碳分压之间保持一定的平衡状态 在特定温度范围内恒定,并进行碳酸钇的老化。 解决方案:老化过程中碳酸钇反应溶液的温度控制在25-40℃的范围内。 优选温度为30℃,温度控制在±3.0℃的范围内。 尽管通过在反应罐的上盖中设置具有规定尺寸的排气孔来控制反应罐中的气氛的控制方法,但通常不需要强制通风。 优选在反应槽中均匀地产生一定值以上的碳酸钇的核。 优选选择足以在反应槽中均匀地产生一定值以上的碳酸钇并控制碳酸钇的晶体生长的速率作为老化时的碳酸钇的搅拌速度。
    • 8. 发明专利
    • Method for manufacturing separation membrane
    • 制造分离膜的方法
    • JP2010099559A
    • 2010-05-06
    • JP2008271662
    • 2008-10-22
    • Ngk Insulators Ltd日本碍子株式会社
    • TAKENO SHOGOSUZUKI HIDEYUKISAKAI TETSUYAICHIKAWA AKIMASA
    • B01D69/04B01D69/10B01D69/12B01D71/02C04B41/85
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a separation membrane that obtains a membrane composed of a precursor solution that is to be a separation membrane on the internal surface of a throughout hole in a monolith substrate, the membrane having an even thickness by drying, particularly a membrane of high separation performance even in a long large-sized monolith substrate of a large diameter.
      SOLUTION: The method for manufacturing the separation membrane includes a film forming step of forming a membrane composed of a precursor solution by allowing the precursor solution to be a separation membrane to pass through the throughout hole 3 formed in the porous monolith substrate 1 and a drying step of drying the membrane composed of the precursor solution by ventilation drying with hot blast, wherein a film is formed in the monolith substrate 1 disposed so as to allow one edge 34 of the longitudinal direction 60 in the monolith substrate to be an upper position of the other edge 35 in the film forming step, an inversion step of inverting the monolith substrate so as to allow one edge 34 of the monolith substrate 1 to be a lower position of the other edge 35 after the film forming step, and the drying step is started within 20 minutes from the time at which the inversion step is finished.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决问题的方法为了提供一种分离膜的制造方法,该分离膜在整体式基板的整个孔的内表面上获得由作为分离膜的前体溶液构成的膜,所述膜具有 即使在大直径的长尺寸的整体式大型基板中,即使通过干燥也能获得均匀的厚度,特别是具有高分离性能的膜。 解决方案:制造分离膜的方法包括:通过使前体溶液作为分离膜通过形成在多孔整料基板1中的整个孔3,形成由前体溶液构成的膜的成膜步骤 以及干燥步骤,通过用热风进行通风干燥来干燥由所述前体溶液组成的膜,其中在所述整料基板1中形成膜,以使得所述整料基板中的纵向方向60的一个边缘34为 在成膜步骤中,另一边缘35的上部位置,反转步骤,使成形衬底1反转,以使成形衬底1的一个边缘34成为成膜步骤之后的另一个边缘35的下部位置;以及 干燥步骤在从反转步骤完成的时间开始的20分钟内开始。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Manufacturing method for separation membrane
    • 分离膜的制造方法
    • JP2010110704A
    • 2010-05-20
    • JP2008286064
    • 2008-11-07
    • Ngk Insulators Ltd日本碍子株式会社
    • TAKENO SHOGOSUZUKI HIDEYUKISAKAI TETSUYAICHIKAWA AKIMASA
    • B01D69/04B01D69/12B01D71/02
    • PROBLEM TO BE SOLVED: To provide a manufacturing method for a lengthy and large sized separation membrane having a large diameter and being excellent in productivity.
      SOLUTION: The manufacturing method for the separation membrane includes a separation membrane formation step for forming the separation membrane in through holes having opening holes on both end surfaces in a longitudinal direction 60 of a porous monolith substrate 1, and a protection seal formation step for forming a protection seal membrane comprising a protection seal material 22 for covering one end surface 61 and a surface of the opening hole 51 by pouring the liquid-like protection seal material 22 onto the opening hole 51 of one end surface 61 in the state that one end surface 61 is made upward after the separation membrane formation step, further forming the protection seal of one end surface 61 by drying the protection seal membrane, subsequently similarly forming the protection seal membrane by pouring the liquid-like protection seal material 22 onto the opening hole of the other end surface 62 in the state that the other end surface 62 in the longitudinal direction 60 of the monolith substrate 1 is made upward by vertically reversing the monolith substrate 1, and further forming the protection seal of the other end surface 62 by drying it.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种具有大直径并且生产率优异的长尺寸和大尺寸分离膜的制造方法。 解决方案:分离膜的制造方法包括:分离膜形成步骤,用于在多孔整料基板1的纵向方向60的两个端面上形成具有开孔的通孔中形成分离膜,以及保护密封形成 用于形成保护密封膜的步骤,该保护密封膜包括保护密封材料22,用于通过将液体状保护密封材料22倾倒在一个端面61的开口孔51上而覆盖一个端面61和开口孔51的表面 在分离膜形成步骤之后使一个端面61向上制造,通过干燥保护密封膜进一步形成一个端面61的保护密封,随后类似地通过将液体状保护密封材料22浇注到保护密封膜上而形成保护密封膜 在另一端面62的长度方向60的状态下,另一端面62的开孔 通过使整料基板1垂直反转而将整体基板1向上方形成,并通过干燥另外的端面62进一步形成保护密封。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Method of manufacturing separation membrane
    • 制造分离膜的方法
    • JP2010089000A
    • 2010-04-22
    • JP2008260770
    • 2008-10-07
    • Ngk Insulators Ltd日本碍子株式会社
    • TAKENO SHOGOICHIKAWA AKIMASA
    • B01D69/10B01D69/04B01D71/02
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing a separation membrane by which a membrane of a precursor solution of a separation membrane formed on one surface of a porous substrate is dried evenly in the entire membrane and which is excellent in dense membrane formation. SOLUTION: The method of manufacturing a separation membrane involves a membrane formation step of forming a membrane 2 of a precursor solution on one surface 39 by depositing the precursor solution for giving the separation membrane on one surface 39 of the porous substrate 100 and a drying step of ventilation-drying the membrane 2 of the precursor solution by hot air. In the drying step, ventilation-drying of the membrane 2 of the precursor solution is carried out by making hot air pass above the surface 39 while suppressing gas from flowing out of the other surface 38 of the porous substrate 100 in a state that the surface 38, which is to be a permeating surface in use of the separation membrane, is kept air-tightly. COPYRIGHT: (C)2010,JPO&INPIT
    • 解决问题的方法:提供一种分离膜的制造方法,其中在多孔基材的一个表面上形成的分离膜的前体溶液的膜在整个膜中均匀地干燥,并且具有优异的致密性 膜形成。 解决方案:制造分离膜的方法包括:通过在多孔基材100的一个表面39上沉积用于得到分离膜的前体溶液,在一个表面39上形成前体溶液的膜2的膜形成步骤,以及 通过热风对前体溶液的膜2进行通风干燥的干燥步骤。 在干燥步骤中,通过使热空气在表面39上方通过,同时抑制气体从多孔基材100的另一个表面38流出的状态下进行前体溶液的膜2的通气干燥, 作为使用分离膜的渗透表面38被保持气密。 版权所有(C)2010,JPO&INPIT