公开(公告)号：US5750038A

公开(公告)日：1998-05-12

申请号：US813684

申请日：1997-03-07

申请人： Shuji Tsunematsu ,  Hideo Yamada ,  Eiichi Abe ,  Kozo Inoue

发明人： Shuji Tsunematsu ,  Hideo Yamada ,  Eiichi Abe ,  Kozo Inoue

IPC分类号： B01D37/02 ,  B01J20/10 ,  C01B33/24

CPC分类号： B01J20/10

摘要： A novel method is proposed for the preparation of a calcium silicate powder particularly useful as a filter aid in the filtration of an acidic aqueous liquid by virtue of the extremely high acid resistance of the calcium silicate powder. The inventive method comprises a hydrothermal reaction of a blend of a silica-containing material and calcium oxide or hydroxide in a specified molar ratio under specified reaction conditions to form calcium silicate, which is then subjected to a heat treatment at 800.degree.-1200.degree. C. for 0.5-2 hours. An improvement can be obtained in the clarity of the filtrate obtained by the filtration using the calcium silicate powder prepared by the inventive method as a filter aid when the hydrothermal reaction for the preparation thereof is conducted in an aqueous solution of potassium hydroxide in a specified concentration.

摘要翻译： 提出了一种制备硅酸钙粉末的新方法，该硅酸钙粉末由于硅酸钙粉末的极高耐酸性而特别可用作过滤酸性含水液体中的助滤剂。 本发明的方法包括在规定的反应条件下将含二氧化硅的材料与氧化钙或氢氧化物的混合物以规定的摩尔比水热反应，形成硅酸钙，然后在800-1200℃下进行热处理 0.5-2小时。 在通过本发明方法制备的硅酸钙粉末过滤获得的滤液的澄清度可以获得，当其制备的水热反应在规定浓度的氢氧化钾水溶液中进行时，作为助滤剂 。

公开(公告)号：US20100196726A1

公开(公告)日：2010-08-05

申请号：US12452797

申请日：2008-07-23

申请人： Kinue Tsunematsu ,  Kozo Inoue ,  Shuji Tsunematsu ,  Michiru Sakamoto

发明人： Kinue Tsunematsu ,  Kozo Inoue ,  Shuji Tsunematsu ,  Michiru Sakamoto

IPC分类号： B32B15/04 ,  B05D3/04 ,  B05D3/02

CPC分类号： C23C22/08 ,  C22C1/002 ,  C25D11/30 ,  Y10T428/31678

摘要： A magnesium alloy material contains a complex made from a phosphate-containing magnesium, such as dittmarite and the like, and magnesium hydroxide, the complex being formed by a steam curing of the magnesium alloy material conducted using (i) at least one compound chosen among diammonium hydrogen phosphate, ammonium dihydrogen phosphate, and triammonium phosphate, and (ii) water. In this way, it is possible to provide a magnesium alloy material having excellent corrosion resistance, shock resistance and the like, and to provide a method for treatment of surface of magnesium alloy material allowing the manufacture of a magnesium alloy material having excellent corrosion resistance, shock resistance and the like.

摘要翻译： 一种镁合金材料含有由含磷酸盐的镁如二氧化钛等形成的络合物和氢氧化镁，该复合物通过使用（i）至少一种选自以下的化合物进行的镁合金材料的蒸汽固化而形成： 磷酸氢二铵，磷酸二氢铵和磷酸三铵，和（ii）水。 以这种方式，可以提供具有优异的耐腐蚀性，抗冲击性等的镁合金材料，并且提供一种镁合金材料的表面处理方法，其允许制造具有优异耐腐蚀性的镁合金材料， 抗冲击性等。

公开(公告)号：US6068825A

公开(公告)日：2000-05-30

申请号：US213376

申请日：1998-12-17

申请人： Shuji Tsunematsu

发明人： Shuji Tsunematsu

IPC分类号： B01D37/02 ,  C01B33/18 ,  C01B33/187 ,  C01B33/193 ,  C01B33/12

CPC分类号： C01B33/187 ,  C01P2002/02 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/60

摘要： Disclosed is an improvement in the process for the preparation of amorphous silicic acid particles useful, for example, as a filtration aid comprising the steps of a hydrothermal reaction to prepare calcium silicate particles and decalcification of the calcium silicate particles, after or without undertaking carbonation by the reaction of carbon dioxide, with an acid to form particles of amorphous silicic acid followed by drying of the amorphous silicic acid particles. Different from the conventional methods in which great shrinkage of the amorphous silicic acid cakes wet with water is unavoidable in the drying step to adversely affect the quality of the product, the final step of treatment preceding drying of the wet cake is undertaken in a liquid medium which is a mixture of water and a water-miscible organic solvent such as ethyl alcohol in a specified proportion so that the drying of the wet cake is performed without the disadvantage due to the large surface tension of water responsible to the drying shrinkage of wet cakes.

摘要翻译： 公开了用于制备无定形硅酸颗粒的方法的改进，所述无定形硅酸颗粒可用作例如作为过滤助剂，其包括以下步骤：水热反应以制备硅酸钙颗粒和脱硅钙硅酸盐颗粒，在或不进行碳酸化之后 二氧化碳与酸反应形成无定形硅酸颗粒，然后干燥无定形硅酸颗粒。 与在干燥步骤中不可避免地使无定形硅酸蛋糕用水湿润的大的收缩率不利地影响产品质量的常规方法不同，在湿滤饼干燥之前的处理的最后步骤在液体介质中进行 其是水和水混溶性有机溶剂如乙醇的混合物，以规定的比例进行，从而干燥湿滤饼的干燥不会因为湿蛋糕的干燥收缩引起的水的表面张力大而不利 。

公开(公告)号：US4095986A

公开(公告)日：1978-06-20

申请号：US718102

申请日：1976-08-27

申请人： Osaku Matsuda ,  Kouzo Inoue ,  Shuji Tsunematsu

发明人： Osaku Matsuda ,  Kouzo Inoue ,  Shuji Tsunematsu

IPC分类号： C04B14/42 ,  C03C3/087 ,  C03C4/20 ,  C03C13/00 ,  C03C13/02 ,  C03C5/04 ,  C04B31/06

CPC分类号： C03C13/002 ,  C03C3/087 ,  C03C4/20

摘要： An alkali-resistant glass composition which comprises 40 - 55% by weight ofiO.sub.2, 6 - 12% by weight of Al.sub.2 O.sub.3, 8 - 30% by weight of CaO, 3 - 6% by weight of an alkali metal oxide of Na.sub.2 O and/or K.sub.2 O, 3 - 10%, by weight of ZrO.sub.2 and 2 - 20% by weight of ZnO together with or without 2 - 7% by weight of Fe.sub.2 O.sub.3. This glass composition has especially remarkable alkali-resistance and is excellent in fusibility, workability, spinnability and devitrification-resistance.

摘要翻译： 一种耐碱玻璃组合物，其包含40-55重量％的SiO 2，6-12重量％的Al 2 O 3，8-30重量％的CaO，3-6重量％的Na 2 O的碱金属氧化物和/ 或K 2 O，3-10重量％的ZrO 2和2-20重量％的ZnO，以及2-7重量％的Fe 2 O 3。 该玻璃组合物具有特别显着的耐碱性，并且具有优异的可熔性，可加工性，可纺性和耐失透性。