-
公开(公告)号：US4301124A
公开(公告)日：1981-11-17
申请号：US162538
申请日：1980-06-24
CPC分类号： C22B3/0017 , C01G3/003 , C01G51/003 , C01G53/003 , Y02P10/234
摘要： Dioxime extractants having the following general formula: ##STR1## where R and R' may be any of a variety of organic hydrocarbon radicals such as aliphatic, alkyl and aryl radicals. R and R' may also be hydrogen. Preferably R is an unsaturated hydrocarbon or branch chain alkyl group containing from about 3 to 20 carbon atoms and R' is hydrogen or an unsaturated hydrocarbon or branch chain alkyl group containing from about 1 to 10 carbon atoms. Preferably, there is a difference of about 3 to 10 carbon atoms between R and R' resulting in dissymmetry of the resulting dioxime molecule. Preferably, the dioximes also contain a total of about 5 to 32 carbon atoms. Representative compounds are methyl octyl dioxime and methyl hexyl dioxime.Organic preparations containing such dioximes are useful for the extraction of copper, nickel and cobalt metal values from acid or basic aqueous solution.
摘要翻译： 具有以下通式的肟酸萃取剂：其中R和R'可以是各种有机烃基中的任何一种，例如脂族，烷基和芳基。 R和R'也可以是氢。 R优选为含有约3至20个碳原子的不饱和烃或支链烷基，R'是氢或含有约1-10个碳原子的不饱和烃或支链烷基。 优选地，在R和R'之间存在约3至10个碳原子的差异，导致所得二肟分子不对称。 优选地，二肟还含有总共约5至32个碳原子。 代表性的化合物是甲基辛基二肟和甲基己基二肟。 含有这种二肟的有机制剂可用于从酸性或碱性水溶液中提取铜，镍和钴的金属值。
-
公开(公告)号：US4293111A
公开(公告)日：1981-10-06
申请号：US563537
申请日：1975-03-31
申请人： Paul Henri
发明人： Paul Henri
CPC分类号： B01D46/06 , B01D2201/0415
摘要： The support frame of the invention is comprised of wire mesh bent to cylindrical form with hook-shaped wire stubs projecting from its confronting edges which are hooked and clinched in a fillet with channeled edges providing a side closure; the resultant cage being fitted with base end caps.
摘要翻译： 本发明的支撑框架由弯曲成圆柱形的金属丝网组成，其钩形线材短截线从其相对的边缘突出，钩状和钩状地嵌入圆角，并具有提供侧封闭的通道边缘; 所得的笼子装配有基端盖。
-
公开(公告)号：US4287145A
公开(公告)日：1981-09-01
申请号：US133182
申请日：1980-03-24
摘要： A neutron absorbing article, preferably in long, thin, flat form, suitable for but not necessarily limited to use in storage racks for spent nuclear fuel at locations between volumes of such stored fuel to absorb neutrons from said spent fuel and prevent uncontrolled nuclear reaction of the spent fuel material, is composed of finely divided boron carbide particles and a solid, irreversibly cured phenolic polymer forming a continuous matrix about the boron carbide particles, in such proportions that at least 6% of B.sup.10 from the boron carbide content is present therein. The described structures possess a multiplicity of desirable properties for the use mentioned, including withstanding thermal cycling from repeated spent fuel insertions and removals, withstanding radiation from said spent nuclear fuel over long periods of time without losing desirable neutron absorbing and physical properties, being sufficiently chemically inert to water so as to retain neutron absorbing properties if brought into contact with it, not being galvanically corroding and being sufficiently flexible so as to withstand operational basis earthquake and safe shutdown earthquake seismic events without loss of neutron absorbing capability and other desirable properties when installed in storage racks for spent nuclear fuel. In preferred embodiments of the invention the phenolic polymer is a phenol formaldehyde type polymer, such as a trimethylol phenol formaldehyde type polymer, the boron carbide contains at least 12% of B.sup.10, the plate contains from 8.0 to 11.5% thereof, the plate density is 1.6 to 2.1 g./cc. and the proportions of boron carbide (which may be accompanied by limited amounts of certain impurities) and phenol formaldehyde type polymer (preferably free of halogens, mercury, lead and sulfur) are from 20 to 35% of the former and 65 to 80% of the latter. The invention also relates to a plurality of such neutron absorbing articles in a storage rack for spent nuclear fuel and to a method for the manufacture of the articles. In the manufacturing method a portion of the phenol formaldehyde type resin, in liquid state, is mixed with the boron carbide particles, compacted and cured, after which the cured article is impregnated with additional phenol formaldehyde type resin, which is then cured to make the final product.
-
104.发明授权Method and apparatus for distributing the load between sections of a vertical column 失效用于在垂直柱的部分之间分配负载的方法和装置
公开(公告)号：US4761025A
公开(公告)日：1988-08-02
申请号：US83704
申请日：1987-08-07
申请人： Erwin J. Nunlist
发明人： Erwin J. Nunlist
CPC分类号： B01D3/32
摘要： The present invention relates to a method and apparatus for sharing a load between individual sections of a vertical column. Although particularly useful in conjunction with glass lined steel columns, the present load distribution means is also useful in other vertical columns which are assembled in sections and have gasketed joints. The load sharing, or distribution, means comprises a radially extending annular member, rigidly secured along the outer periphery of each column section to be joined. The annular member is positioned adjacent to the section end. The annular members are aligned as the column sections are assembled and are spacedly secured one from another. Thus, the annular member on one section is secured, but at a distance, from the annular member on an adjacent section.
摘要翻译： 本发明涉及一种用于在垂直列的各个部分之间共享负载的方法和装置。 尽管与玻璃衬里钢柱结合使用特别有用，但现在的负载分配装置也可用于其它垂直立柱，它们是分段组装并具有密封接头。 负载分配或分配装置包括径向延伸的环形构件，其沿着待连接的每个柱段的外周刚性地固定。 环形构件邻近截面端定位。 当柱部分组装并且彼此间隔开地固定时，环形构件对准。 因此，一个部分上的环形构件在相邻部分上固定距离环形构件一定距离。
-
公开(公告)号：US4707583A
公开(公告)日：1987-11-17
申请号：US718376
申请日：1985-04-01
IPC分类号： B01J19/08 , B22F3/10 , C04B35/565 , C04B35/64 , C04B35/65 , F27B3/08 , F27D11/08 , H05B7/00 , H05H1/44 , B23K9/00
CPC分类号： C04B35/65 , C04B35/565 , C04B35/64 , H05B7/00 , H05H1/44
摘要： A furnace for the sintering of refractory or ceramic materials using plasma heated gases. The furnace comprises a sintering chamber with strategic positioning of the plasma torch inlets and exhaust outlet, a furnace temperature controlling device during sintering so that the article being sintered does not decompose. The devices which can be used for controlling the temperature of the furnace during sintering include: (1) Tangential injection of a secondary colder gas stream into the hot primary plasma gas stream; (2) Utilization of a plasma torch or torches which can be temperature controlled to achieve stable and lower plasma gas temperatures; and (3) Introduction of a secondary cooler gas directly into the furnace sintering chamber.
摘要翻译： 使用等离子体加热气体烧结耐火材料或陶瓷材料的炉子。 该炉包括具有等离子体焰炬入口和排气出口的战略定位的烧结室，烧结期间的炉温控制装置，使得待烧结的制品不分解。 可用于控制烧结炉内温度的装置包括：（1）将二次较冷的气流切向注入热的初级等离子体气流; （2）使用等离子体焰炬或火炬，可以进行温度控制，以获得稳定和较低的等离子体气体温度; 和（3）将二次冷却器气体直接引入炉内烧结室。
-
106.发明授权Method and apparatus for the continuous production of strip using oscillating mold assembly 失效使用振荡模具组件连续生产带材的方法和设备
公开(公告)号：US4683938A
公开(公告)日：1987-08-04
申请号：US825662
申请日：1986-02-03
IPC分类号： B21B3/00 , B22D11/055 , B22D11/14 , B22D11/04
CPC分类号： B21B3/003 , B22D11/055 , B22D11/145 , B21B2003/005
摘要： Disclosed is an apparatus and method for the integrated, continuous, high speed manufacture of metallic strip, especially brass, from a melt. The apparatus comprises a chilled casting mold in liquid communication with a melt, means for drawing a rod through the mold at a constant rate and means for oscillating the mold in a pattern of forward and reverse strokes with respect to the direction of travel of the rod. Conversion of the rod to strip comprises flattening in a hot rolling mill, and quenching. In accordance with known procedures, the produced strip can be further reduced in cross section in one or more cold rolling mill or other hot rolling mills if desired.
摘要翻译： 公开了一种从熔体中一体化，连续，高速地制造金属带，特别是黄铜的设备和方法。 该设备包括与熔体液体连通的冷却铸造模具，用于以恒定速率拉伸模具通过模具的装置，以及用于相对于杆的行进方向以正向和反向冲程的模式摆动模具的装置 。 将棒转化成带材包括在热轧机中的扁平化和淬火。 根据已知的方法，如果需要，可以在一个或多个冷轧机或其它热轧机中进一步减少生产的带材的横截面。
-
公开(公告)号：US4676940A
公开(公告)日：1987-06-30
申请号：US718375
申请日：1985-04-01
IPC分类号： C04B35/565 , C04B35/64 , F27B9/04
CPC分类号： C04B35/64 , C04B35/565
摘要： A process for the sintering of silicon carbide refractory or ceramic articles using plasma arc gases. In the process of the invention, a formed silicon carbide article is heated in a plasma fired furnace to a sintering temperature of between 2000.degree. C.-2500.degree. C. at a heating rate of 300.degree. C./hr-2000.degree. C./hr, and held at the sintering temperature for 0.1-2 hours. The enthalpy of the plasma gas is 2000 BTU/lb-4000 BTU/lb, when nitrogen is used as the plasma gas. The total cycle time for the process of the invention, including cooling and loading, is 1.5-20 hours. Silicon carbide articles, produced in accordance with the invention, have high strength, high density, high corrosion resistance and high dimensional stability.
摘要翻译： 使用等离子体电弧气体烧结碳化硅耐火材料或陶瓷制品的方法。 在本发明的方法中，将形成的碳化硅制品在等离子体烧制炉中以300℃/hr-2000℃的加热速率加热到2000℃-2500℃的烧结温度。 / hr，并在烧结温度下保持0.1-2小时。 当使用氮气作为等离子体气体时，等离子体气体的焓为2000BTU / lb-4000BTU / lb。 本发明方法的总循环时间（包括冷却和加载）为1.5-20小时。 根据本发明生产的碳化硅制品具有高强度，高密度，高耐腐蚀性和高尺寸稳定性。
-
108.发明授权
公开(公告)号：US4621017A
公开(公告)日：1986-11-04
申请号：US586297
申请日：1984-03-05
申请人： Richard C. Chandler , Lutfi H. Amra
发明人： Richard C. Chandler , Lutfi H. Amra
CPC分类号： F04B15/04 , C04B41/52 , C04B41/89 , Y10T428/256 , Y10T428/30
摘要： The invention provides a composite carbon or graphite having desirable properties such as corrosion and wear resistance. The invention combines a graphite substrate with a protective porous zone of silicon carbide. The whole body of graphite plus silicon carbide then is infiltrated with aluminum phosphate. An adhered barrier of silicon carbide, ranging in thickness between 0.015 and 0.050 inch thick is integrated with a graphite stratum to form a very hard surface, resistant to mechanical and chemical wear. The silicon carbide barrier is closely compatible to the graphite substrate, in resistance to thermal shock and in qualities of thermal expansion. In order to improve oxidation resistance further, a new composition was formed by infiltrating aluminum phosphate through the silicon carbide into the graphite to form a single body of composite graphite.
摘要翻译： 本发明提供具有所需性质如耐腐蚀性和耐磨性的复合碳或石墨。 本发明将石墨基底与碳化硅的保护性多孔区组合在一起。 然后将全体石墨加碳化硅浸入磷酸铝中。 厚度在0.015和0.050英寸之间的碳化硅粘附屏障与石墨层结合在一起形成非常硬的表面，耐机械和化学磨损。 碳化硅阻挡层与石墨基材密切相容，耐热冲击性和热膨胀性。 为了进一步提高抗氧化性，通过将磷酸铝通过碳化硅渗透到石墨中形成复合石墨的单体而形成新的组合物。
-
109.发明授权
公开(公告)号：US4612971A
公开(公告)日：1986-09-23
申请号：US708115
申请日：1985-03-05
CPC分类号： B21B3/003 , B22D11/055 , B22D11/145 , B21B2003/005
摘要： Disclosed is an apparatus and method for the integrated, continuous, high speed manufacture of metallic strip, especially brass, from a melt. The apparatus comprises a chilled casting mold in liquid communication with a melt, means for drawing a rod through the mold at a constant rate and means for oscillating the mold in a pattern of forward and reverse strokes with respect to the direction of travel of the rod. Conversion of the rod to strip comprises flattening in a hot rolling mill, and quenching. In accordance with known procedures, the produced strip can be further reduced in cross section in one or more cold rolling mill or other hot rolling mills if desired.
-
公开(公告)号：US4601583A
公开(公告)日：1986-07-22
申请号：US695321
申请日：1985-01-28
申请人： Franklyn J. Amorese
发明人： Franklyn J. Amorese
CPC分类号： B01F7/00016 , B01F7/00041 , B01F7/001 , B01F7/00275
摘要： What is disclosed is a multi-hubbed, separable blade agitator assembly wherein the exterior surfaces of the hubs of each agitator blade as well as the exterior surface of the drive shaft are coated with glass and the hubs are interference fitted to the drive shaft in glass-to-glass surface contact sufficient to withstand torque imparted to the agitator blades by the drive shaft.
摘要翻译： 所公开的是一种多毂式可分离叶片搅拌器组件，其中每个搅拌器叶片的轮毂的外表面以及驱动轴的外表面涂覆有玻璃，并且毂与玻璃中的驱动轴干涉配合 玻璃表面接触足以承受由驱动轴施加到搅拌器叶片的扭矩。
-
-
-
-
-
-
-
-
-
搜索结果
128 条记录 (耗时 0.022 秒)
