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1096 条记录 (耗时 0.032 秒)

    Rear earth-iron-boron permanent magnets containing aluminum
    82.
    发明授权
    Rear earth-iron-boron permanent magnets containing aluminum 失效
    含有铝的后置土 - 铁 - 硼永磁体

    公开(公告)号：US4954186A

    公开(公告)日：1990-09-04

    申请号：US177094

    申请日：1988-04-04

    申请人： Mohammad H. Ghandehari

    发明人： Mohammad H. Ghandehari

    IPC分类号： B22F1/00 ,  C22C1/04 ,  H01F1/057

    CPC分类号： H01F1/0577 ,  B22F1/0003 ,  C22C1/0441

    摘要： Permanent magnets are prepared by a method comprising mixing a particular rare earth-iron-boron alloy with particulate aluminum, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape.

    摘要翻译： 通过将特定的稀土 - 铁 - 硼合金与微粒铝混合，对准混合物的磁畴，压实对准的混合物以形成形状并烧结压实形状的方法制备永磁体。

    Composition for preparing rare earth-iron-boron-permanent magnets
    83.
    发明授权
    Composition for preparing rare earth-iron-boron-permanent magnets 失效
    制备稀土 - 铁 - 硼 - 永磁体的组成

    公开(公告)号：US4933009A

    公开(公告)日：1990-06-12

    申请号：US201943

    申请日：1988-06-03

    申请人： Mohammad H. Ghandehari

    发明人： Mohammad H. Ghandehari

    IPC分类号： H01F1/057

    CPC分类号： H01F1/0577

    摘要： Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with a particulate rare earth oxide, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape.

    摘要翻译： 通过以下方法制备永久磁铁，该方法包括将稀土 - 铁 - 硼合金颗粒与稀土类稀土氧化物混合，使混合物的磁畴对准，压实对准的混合物以形成形状，并烧结压实形状。

    Scarifying plant seeds
    84.
    发明授权
    Scarifying plant seeds 失效
    澄清植物种子

    公开(公告)号：US4931079A

    公开(公告)日：1990-06-05

    申请号：US329644

    申请日：1989-03-28

    申请人： Donald C. Young

    发明人： Donald C. Young

    IPC分类号： A01N59/02 ,  B27K5/00

    CPC分类号： A01N59/02

    摘要： Plant seeds are beneficiated by contacting them with an aqueous solution of a urea-sulfuric acid component containing the monourea adduct of sulfuric acid. The molar ratio of urea to sulfuric acid in the aqueous solution is preferably within the range of about 1/4 to about 7/4 so that at least about 25 percent of the sulfuric acid is present in the solution as the monourea adduct. The treatment of plant seeds with the aqueous urea-sulfuric acid components is particularly useful for removing residual plant matter from plant seeds, scarifying and improving the germination of plant seeds, and improving the processability and digestibility of plant seeds. Improvements in processability result from softened seed hulls or husks, improved extractability of oil from oil-containing seeds, and improved quality of treated seeds for the manufacture of seedderived products, particularly for the manufacture of grain-derived products. Compositions which involves mixtures of plant seeds and the urea-sulfuric acid components are also provided.

    摘要翻译： 通过将植物种子与含有硫酸单脲加合物的尿素 - 硫酸组分的水溶液接触来选择植物种子。 水溶液中尿素与硫酸的摩尔比优选在约1/4至约7/4的范围内，使得至少约25％的硫酸作为单脲加合物存在于溶液中。 用尿素 - 硫酸水溶液处理植物种子特别适用于从植物种子中除去残留的植物物质，使植物种子发芽，改善植物种子发芽，提高植物种子的加工性和消化率。 可加工性的改善是由于软化的种皮壳或外壳，来自含油种子的油的提取能力提高，以及用于制造造粒产品，特别是用于制造谷物衍生产品的处理过的种子的质量。 还提供了涉及植物种子和尿素 - 硫酸组分的混合物的组合物。

    Crystalline galliosilicate with the zeolite L type structure
    85.
    发明授权
    Crystalline galliosilicate with the zeolite L type structure 失效
    具有沸石L型结构的结晶镓硅酸盐

    公开(公告)号：US4919907A

    公开(公告)日：1990-04-24

    申请号：US274621

    申请日：1988-11-22

    申请人： Mario L. Occelli

    发明人： Mario L. Occelli

    IPC分类号： B01J29/87 ,  C01B39/08 ,  C10G47/16

    CPC分类号： B01J29/87 ,  C01B39/082 ,  C10G47/16

    摘要： A crystalline, galliosilicate molecular sieve having the zeolite L type structure and the following composition expressed in terms of oxide mole ratios in the anhydrous state:Ga.sub.2 O.sub.3 :xSiO.sub.2 :yM.sub.2 O:zK.sub.2 Owhere M is an alkali metal other than potassium, preferably sodium, x equals at least 3.0, preferably 4 to 10, y equals 0 to 0.9, z equals 0.1 to 1.0, and y+z equals about 1.0. The crystalline, galliosilicate molecular sieve of the invention may be employed, after reducing its alkali metal content, as a component of a catalyst which can be used in a variety of chemical conversion processes, preferably hydrocarbon conversion processes, and most preferably hydrocracking and isomerization processes.

    摘要翻译： 具有沸石L型结构的结晶的镓硅酸盐分子筛，并且以无水状态的氧化物摩尔比表示的以下组成：Ga 2 O 3：xSiO 2：yM 2 O：z K 2 O其中M是钾以外的碱金属，优选钠，x等于 至少3.0，优选4至10，y等于0至0.9，z等于0.1至1.0，y + z等于约1.0。 本发明的结晶，胆硅酸盐分子筛在降低其碱金属含量之后，可用作可用于各种化学转化方法，优选烃转化方法，最优选加氢裂化和异构化方法的催化剂组分 。

    Synthesis of sulfonic acids and carboxylic acid ester derivatives thereof
    86.
    发明授权
    Synthesis of sulfonic acids and carboxylic acid ester derivatives thereof 失效
    磺酸及其羧酸酯衍生物的合成

    公开(公告)号：US4910330A

    公开(公告)日：1990-03-20

    申请号：US101146

    申请日：1987-09-25

    申请人： Dennis E. McGee ,  Ted S. Hallen

    发明人： Dennis E. McGee ,  Ted S. Hallen

    IPC分类号： C07C303/16

    CPC分类号： C07C303/16

    摘要： Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is pure enough to be used directly in the synthesis of sulfo-acrylic esters which are finding considerable use as stabilizers in producing vinylidene chloride copolymers used for FDA approved packaging films.

    摘要翻译： 通常通过用过氧化氢选择性氧化前体羟基硫醇，通常可以制备羟基磺酸和羟乙磺酸（2-羟基乙基磺酸），其纯度为99 +％，产率高。 所得产物纯度足以直接用于磺基丙烯酸酯的合成中，其在制备用于FDA批准的包装膜的偏二氯乙烯共聚物中被认为可用作稳定剂。

    ID catalyzed reactions and compositions for use therein
    87.
    发明授权
    ID catalyzed reactions and compositions for use therein 失效
    ID催化反应和其中使用的组合物

    公开(公告)号：US4910179A

    公开(公告)日：1990-03-20

    申请号：US453496

    申请日：1982-12-27

    申请人： Donald C. Young

    发明人： Donald C. Young

    IPC分类号： A01N59/02 ,  C05C9/00 ,  C23F11/04

    CPC分类号： C23F11/04 ,  A01N59/02 ,  C05C9/00

    摘要： Certain urea-sulfuric acid components, comprised of urea and sulfuric acid in a 1/4 to 7/4 molar ratio, contain a monourea adduct of sulfuric acid, which is catalytically active for promoting organic chemical reactions. The invention provides methods employing such urea-sulfuric acid components for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerization (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis. Novel catalysts are disclosed which involve combinations of the urea-sulfuric component with one or more transition metal halides and/or with one or more surfactants. The surfactant-containing compositions are particularly useful for the treatment of materials containing lipophilic substances. Novel compositions containing the urea-sulfuric acid component and one or more organic reactants are also disclosed.

    摘要翻译： 由1/4至7/4摩尔比的尿素和硫酸组成的某些尿素 - 硫酸组分含有一种硫酸的单脲加合物，它对促进有机化学反应具有催化活性。 本发明提供了使用这种尿素 - 硫酸组分催化氧化，氧化添加，还原，还原加成，酯化，酯交换，氢化，异构化（包括光学异构体的外消旋化），烷基化，聚合，有机金属化合物的金属脱金属等有机反应的方法。 硝化，Friedel-Crafts反应和水解。 公开了新的催化剂，其涉及尿素 - 硫酸组分与一种或多种过渡金属卤化物和/或与一种或多种表面活性剂的组合。 含表面活性剂的组合物特别可用于处理含有亲脂性物质的材料。 还公开了含有尿素 - 硫酸组分和一种或多种有机反应物的新型组合物。

    Process for using sludge from geothermal brine to make concrete and concrete composition
    90.
    发明授权
    Process for using sludge from geothermal brine to make concrete and concrete composition 失效
    使用地热盐水泥浆制作混凝土和混凝土组成的工艺

    公开(公告)号：US4900360A

    公开(公告)日：1990-02-13

    申请号：US226286

    申请日：1988-07-29

    申请人： Olin D. Whitescarver ,  Jonathan T. Kwan ,  M. Kenneth Chan ,  Daniel P. Hoyer

    发明人： Olin D. Whitescarver ,  Jonathan T. Kwan ,  M. Kenneth Chan ,  Daniel P. Hoyer

    IPC分类号： C04B18/04 ,  E21B43/34

    CPC分类号： C04B18/0418 ,  E21B43/34 ,  Y02W30/91 ,  Y10S106/01

    摘要： A process is provided for using siliceous sludge (filter cake), obtained by precipitation of silica from silica-rich geothermal brine, to make a concrete material (geocrete). The process includes combining the sludge with a cementitious material, such as Portland cement and/or flyash and activating the cementitious material with an activating media. When water is used as the activating media, the sludge is preferably dewatered and the residual water content is determined, the entrapped brine adding to the water content of the mixture. The dry weight ratio of sludge to cementing material may be greater than about 3:1 and ratios as high as about 12:1 can be used to produce high strength geocrete.

    摘要翻译： 提供了一种使用通过从二氧化硅富集的地热盐水中沉淀二氧化硅得到的硅质污泥（滤饼）制成混凝土材料（混凝土）的方法。 该方法包括将污泥与诸如波特兰水泥和/或飞灰之类的水泥质材料组合，并用活化介质活化水泥质材料。 当使用水作为活化介质时，优选将污泥脱水并确定残留水分含量，将捕获的盐水加入到混合物的水分中。 污泥与固井材料的干重比可以大于约3:1，可以使用高达约12:1的比例来生产高强度混凝土。