公开(公告)号：US4845068A

公开(公告)日：1989-07-04

申请号：US184958

申请日：1988-04-22

申请人： Yasuhito Takahashi ,  Shigeru Sakai ,  Yoshimasa Inoue

发明人： Yasuhito Takahashi ,  Shigeru Sakai ,  Yoshimasa Inoue

IPC分类号： B01J21/04 ,  B01J23/85 ,  B01J23/883 ,  B01J27/188 ,  B01J31/02 ,  B01J31/28 ,  B01J35/10 ,  B01J37/20 ,  C10G45/08

CPC分类号： B01J31/0217 ,  B01J23/85 ,  B01J23/883 ,  B01J27/188 ,  B01J31/0237 ,  B01J31/0271 ,  B01J31/28 ,  B01J37/20 ,  C10G45/08 ,  B01J21/04 ,  B01J35/1019 ,  B01J35/1042

摘要： Supported catalysts for hydrotreating hydrocarbons comprise (a) at least one member selected from the group consisting of oxides of metals in Groups IV and VIII of the Periodic Table, and (b) at least one organic compound having a mercapto radical or radicals (--SH) selected from the group consisting of mercapto-carboxylic acids, including alkali metal, alkaline earth metal and ammonium salts thereof and esters thereof, bivalent mercaptans, amino-substituted mercaptans, and thiocarboxylic acids. These catalysts can be easily activated by treatment in the presence of hydrogen gas at a temperature in the range from room temperature to 400.degree. C. show higher activity than catalysts activated by conventional methods.

公开(公告)号：US4992403A

公开(公告)日：1991-02-12

申请号：US394560

申请日：1989-08-16

申请人： Yasuhito Takahashi ,  Tomio Kawaguchi ,  Shigeru Sakai

发明人： Yasuhito Takahashi ,  Tomio Kawaguchi ,  Shigeru Sakai

IPC分类号： B01J37/20 ,  C10G49/04

CPC分类号： B01J37/20 ,  C10G49/04

摘要： Catalysts for hydrotreating hydrocarbons are composed of a carrier substance consisting essentially of an oxide of aluminum and/or an oxide hydrate of aluminum, at least one compound selected from water-soluble compounds of metals of Group VI and Group VIII of the Periodic Table and at least one organic compound selected from mercapto-carboxylic acids of formula HS--(CH.sub.2).sub.n --COOR (where n is 1 to 3; R is H, alkali metal, alkaline earth metal or ammonium group or alkyl group with 1-10 carbons), thio-acids of formula R'--COSH (where R' is monovalent hydrocarbon with 1-15 carbons), amino-substituted mercaptans of formula H.sub.2 N--R"--SH (R" is divalent hydrocarbon with 1-15 carbons), dimercaptans of formula HS--R"--SH (R" is same as above) and mercapto-alcohols of formula (R.sup.a S--R"'--(OH).sub.n (where R"' is hydrocarbon with 1-15 carbons; R.sup.a is H or alkyl group with 1-2 carbons; and n is 1-2), and optionally phosphoric acid. The catalysts require neither presulfurization nor heat-treatment and can be directly applied to hydrotreating hydrocarbons.

公开(公告)号：US4997801A

公开(公告)日：1991-03-05

申请号：US340518

申请日：1989-04-19

申请人： Yukuaki Mitarai ,  Naoto Kinbara ,  Yasuhito Takahashi ,  Tomio Kawaguchi ,  Shigeru Sakai

发明人： Yukuaki Mitarai ,  Naoto Kinbara ,  Yasuhito Takahashi ,  Tomio Kawaguchi ,  Shigeru Sakai

IPC分类号： B01J27/047 ,  B01J21/04 ,  B01J23/85 ,  B01J23/883 ,  B01J27/232 ,  B01J31/02 ,  B01J31/04 ,  B01J31/26 ,  B01J35/00 ,  B01J35/10 ,  B01J37/20 ,  C10G45/08 ,  C10G47/10

CPC分类号： B01J31/26 ,  B01J23/85 ,  B01J23/883 ,  B01J31/0217 ,  B01J31/0218 ,  B01J35/002 ,  B01J37/20 ,  C10G45/08 ,  B01J21/04 ,  B01J31/04 ,  B01J35/1019 ,  B01J35/1042

摘要： There is disclosed a catalyst which hydrotreats hydrocarbons without need of presulfiding. The catalyst comprises a carrier of an inorganic oxide containing a sulfurizing agent and a water-soluble compound of two metals one of which belongs to the Group VI of the Periodic Table, while the other belongs to the Group VIII. The carrier has pores in which a precursor of a sulfide is formed. The coordination number of the closest Group VI metal found from the radial distribution function around the Group VI metal is less than 0.25. The function is obtained from the Fourier transform of the extended x-ray absorption fine structure of the precursor.

公开(公告)号：US4981828A

公开(公告)日：1991-01-01

申请号：US442448

申请日：1989-11-28

申请人： Yasuhito Takahashi ,  Shigeru Sakai

发明人： Yasuhito Takahashi ,  Shigeru Sakai

IPC分类号： B01J23/88 ,  B01J23/888 ,  B01J27/188 ,  B01J31/02 ,  B01J31/04 ,  B01J31/34 ,  B01J37/20 ,  C10G49/02 ,  C10G49/04

CPC分类号： B01J31/0217 ,  B01J23/88 ,  B01J23/882 ,  B01J23/888 ,  B01J27/188 ,  B01J31/04 ,  B01J31/34 ,  B01J37/20 ,  C10G49/02 ,  C10G49/04

摘要： A catalyst for the hydrotreatment of a hydrocarbon oil comprises a carrier of an inorganic oxide and an active component supported on the carrier and formed of at least one member selected from the group consisting of water-soluble compounds of molybdenum, tungsten, and the metal of Group 8 in the Periodic Table of Elements and at least one mercapto (--SH) group-containing organic compound selected from the group consisting a mercaptocarboxylic acids represented by the general formula:HS--(CH.sub.2).sub.n --COOR(wherein n stands for an integer in the range of 1 to 3 and R for a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or a linear or branched naphthenic alkyl group having 1 to 10 carbon atoms), amino-substituted mercaptans represented by the general formula:H.sub.2 N--R'--SH(wherein R' stands for a divalent hydrocarbon group), divalent mercaptans represented by the general formula:HS--R'--SH(wherein R' stands for a divalent hydrocarbon group), and thio acids represented by the general formula:R"--COSH(wherein R" stands for a monovalent hydrocarbon group).

公开(公告)号：US5914287A

公开(公告)日：1999-06-22

申请号：US984187

申请日：1997-12-03

申请人： Fumihiko Saito ,  Shigeru Sakai

发明人： Fumihiko Saito ,  Shigeru Sakai

IPC分类号： C01F17/00 ,  C04B35/50 ,  C04B35/626 ,  C04B35/628 ,  C04B41/45 ,  C04B41/81

CPC分类号： C04B35/62815 ,  C01F17/0043 ,  C04B35/111 ,  C04B35/468 ,  C04B35/486 ,  C04B35/50 ,  C04B35/581 ,  C04B35/584 ,  C04B35/597 ,  C04B35/6263 ,  C04B35/628 ,  C04B35/62897 ,  C04B35/63424 ,  C04B41/009 ,  C04B41/4584 ,  C04B41/81 ,  C01P2004/80 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/5436 ,  Y10T428/2991

摘要： Proposed is a powder consisting of rare earth oxide-based composite particles having an average particle diameter in the range from 0.1 to 100 .mu.m, each of which has a composite structure consisting of a core of a rare earth oxide and a coating layer of a rare earth hydroxide, the coating layer of the rare earth hydroxide having an average thickness of at least 5 nm but not exceeding 10% of the average particle diameter of the composite particles. While a rare earth oxide powder is useful as a sintering aid of a ceramic powder which is used in molding usually in the form of an aqueous slurry, the composite particles when added to an aqueous slurry of a ceramic powder exhibit a remarkable effect as a viscosity stabilizer or gelation inhibitor of the aqueous slurry so that improvements can be obtained in the productivity of the manufacturing process and quality of ceramic products.

摘要翻译： 提出了由平均粒径为0.1〜100μm的稀土氧化物系复合粒子构成的粉末，其中，所述复合粒子的复合结构由稀土类氧化物的核心和 稀土氢氧化物，稀土氢氧化物的涂层的平均厚度为复合颗粒的平均粒径至少5nm但不超过10％。 虽然稀土氧化物粉末可用作陶瓷粉末的烧结助剂，其通常以水性浆液的形式用于模塑中，但当加入到陶瓷粉末的水性浆料中时，复合颗粒显示出显着的效果，作为粘度 稳定剂或凝胶抑制剂，从而可以在制造过程的生产率和陶瓷产品的质量方面获得改进。

公开(公告)号：US5644037A

公开(公告)日：1997-07-01

申请号：US433925

申请日：1995-05-02

申请人： Masami Kaneyoshi ,  Isamu Fujioka ,  Shigeru Sakai

发明人： Masami Kaneyoshi ,  Isamu Fujioka ,  Shigeru Sakai

IPC分类号： C01F17/00 ,  C07C51/41 ,  C07F5/00 ,  C04B35/58 ,  C09K11/08

CPC分类号： C07C51/412

摘要： Disclosed is a method for the preparation of particles of a rare earth ammonium double oxalate by mixing a first aqueous solution of ammonium oxalate and a second aqueous solution of a water-soluble rare earth salt. The double oxalate particles have a polyhedral particle configuration with a uniform particle size distribution, from which a rare earth oxide powder of a polyhedral particle configuration with good flowability can be obtained by calcination, when the first and second aqueous solutions are prepared under exact control of the concentrations of the respective ionic species and the aqueous slurry containing the precipitates of the double oxalate is subjected to an aging treatment during which changes take place in the particle morphology and in the crystallographic structure of the double oxalate particles.

摘要翻译： 公开了通过混合草酸铵的第一水溶液和水溶性稀土盐的第二水溶液来制备双草酸稀土铵的颗粒的方法。 双草酸盐颗粒具有均匀粒度分布的多面体颗粒构型，当第一和第二水溶液在精确控制下制备第一和第二水溶液时，可以通过煅烧获得具有良好流动性的多面体颗粒构型的稀土氧化物粉末 对含有双草酸盐的析出物的各离子种类和含水浆料的浓度进行时效处理，在该处理期间，在双重草酸盐颗粒的颗粒形态和晶体结构中发生变化。

公开(公告)号：US5439656A

公开(公告)日：1995-08-08

申请号：US227323

申请日：1994-04-14

申请人： Yuji Kimura ,  Shigeru Sakai

发明人： Yuji Kimura ,  Shigeru Sakai

IPC分类号： C01F17/00 ,  C04B35/50

CPC分类号： C01F17/005 ,  C01F17/0043

摘要： An improved method is proposed for the preparation of a powder of a rare earth oxide having good dispersibility containing no agglomerates of particles even without undertaking disintegration indispensable heretofore. The improved method comprises precipitation of a rare earth carbonate by the admixture of an aqueous solution of an inorganic rare earth salt with an aqueous solution of ammonium hydrogen carbonate in an excess amount over the stoichiometrically equivalent amount to give a slurry of the rare earth carbonate which is subjected to heating treatment in two steps each under specified conditions to effect aging of the carbonate precipitates. Characteristically, the aqueous slurry after the first aging treatment is subjected to an adjustment in three differently specified ways prior to the second aging treatment including, first, admixture of an additional amount of ammonium hydrogen carbonate, second, addition of water to decrease the solid content in the slurry and, third, addition of an inorganic acid to decrease the pH of the slurry.

摘要翻译： 提出了一种改进的方法，用于制备即使不进行迄今不可或缺的分解的具有不含颗粒附聚物的良好分散性的稀土氧化物粉末。 改进的方法包括通过将无机稀土盐的水溶液与过量的碳酸氢铵水溶液以化学计量当量的量混合来沉淀稀土碳酸盐，得到稀土碳酸盐的浆料， 在规定条件下分两步进行加热处理，以使碳酸盐析出物老化。 特征地，第一时效处理后的含水浆料在第二时效处理之前以三种不同的方式进行调节，包括：首先混合附加量的碳酸氢铵，其次，加入水以降低固含量 在浆料中，第三，加入无机酸以降低浆料的pH。

公开(公告)号：US5846674A

公开(公告)日：1998-12-08

申请号：US879602

申请日：1997-06-20

申请人： Shigeru Sakai ,  Toru Mangahara ,  Kazuo Umeda ,  Kiyoshi Oguchi ,  Mitsuru Tsuchiya

发明人： Shigeru Sakai ,  Toru Mangahara ,  Kazuo Umeda ,  Kiyoshi Oguchi ,  Mitsuru Tsuchiya

IPC分类号： H01M4/02 ,  H01M4/62 ,  H01M10/40

CPC分类号： H01M4/621 ,  H01M4/02 ,  H01M2300/0025 ,  Y10T29/49115

摘要： An electrode for a rechargeable battery with a nonaqueous electrolyte is provided wherein the active material layer has a sufficient flexibility, the adhesion between the active material coating and the metal foil collector is good, none of peeling, falling, cracking and other unfavorable phenomena occur in the active material coating in the step of assembling a battery and excellent discharge characteristics can be developed. The electrode for a rechargeable battery with a nonaqueous electrolyte comprises a metal foil collector and, formed on at least a part of the metal foil collector, an active material layer comprising an active material and a cured reaction-curing binder as essential components.

摘要翻译： 提供一种具有非水电解质的可再充电电池用电极，其中活性物质层具有足够的柔软性，活性物质涂层与金属箔收集体之间的粘附性良好，不会发生剥离，脱落，开裂等不利现象 可以开发组装电池的步骤中的活性材料涂层和优异的放电特性。 用于具有非水电解质的可再充电电池的电极包括金属箔收集器，并且在金属箔收集器的至少一部分上形成包含活性材料的活性材料层和固化的反应固化粘合剂作为必要组分。

公开(公告)号：US5567403A

公开(公告)日：1996-10-22

申请号：US453400

申请日：1995-05-30

申请人： Yuji Kimura ,  Shigeru Sakai

发明人： Yuji Kimura ,  Shigeru Sakai

IPC分类号： C01B25/37 ,  C09K11/77 ,  C09K11/81 ,  C09K11/83 ,  C01F17/00

CPC分类号： C01B25/37 ,  C09K11/7777

摘要： Proposed is a method for the preparation of a rare earth phosphate powder or, in particular, a composite rare earth phosphate powder of lanthanum, cerium and terbium having properties suitable for use as a base material of phosphors in fluorescent lamps in respect of particle size distribution of 1-10 .mu.m and globular particle configuration. The method is basically a precipitation method by mixing aqueous solutions of a water-soluble salt of the rare earth element or elements and phosphoric acid but the inventive method is characterized by completing introduction of the rare earth salt solution into the phosphoric acid solution within a limited length of time of 3 seconds to 5 minutes at a specified temperature, each of the solutions having a specified concentration.

摘要翻译： 提出了一种制备稀土磷酸盐粉末或特别是具有适合用作荧光灯中的荧光体的基础材料的特性的镧，铈和铽的复合稀土磷酸盐粉末的方法，用于粒度分布 1-10μm，球状颗粒构型。 该方法基本上是通过混合稀土元素或磷酸的水溶性盐的水溶液和磷酸的沉淀方法，但是本发明的方法的特征在于在有限的范围内完成将稀土盐溶液引入磷酸溶液 在指定温度下3秒至5分钟的时间长短，每个溶液具有指定的浓度。

公开(公告)号：US5225449A

公开(公告)日：1993-07-06

申请号：US943576

申请日：1992-09-11

申请人： Hisashi Tada ,  Yoshinobu Shiraishi ,  Tetsuya Sawano ,  Tetsuya Yamamoto ,  Shigeru Sakai

发明人： Hisashi Tada ,  Yoshinobu Shiraishi ,  Tetsuya Sawano ,  Tetsuya Yamamoto ,  Shigeru Sakai

IPC分类号： C08J9/00 ,  C08J9/02 ,  C08L33/02 ,  C08L33/04 ,  C08L33/08 ,  C08L33/18 ,  C08L33/20

CPC分类号： C08J9/02 ,  C08J2333/00

摘要： The present invention provides expandable plastics having a molecular weight of 50,000 to 500,000 which comprises the following structural units (I), (II) and (III) giving a foam having heat resistance and fine structure by heating, the molar ratio of (I+II) to (III) being 1 to 0.6-1.5 and the proportion of (I) being 5 to 50 wt. % of the total components: ##STR1## wherein R represents a hydrogen atom or a methyl group. When the copolymer, the expandable plastics, of the present invention is used, white foams having a very fine texture are obtained without using special foaming agents, and besides the heat resistance of the foams is high and the amount of water absorbed thereby is little. The foams of the present invention, therefore, can be used in a wide range as soundproofing materials and heat insulators for which the conventional foams cannot be used because of their low heat resistance, and substitutes for honeycomb structures used in airplanes.