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15 条记录 (耗时 0.014 秒)

    Containment and densification of particulate material
    2.
    发明授权
    Containment and densification of particulate material 失效
    颗粒材料的封闭和致密化

    公开(公告)号：US4645624A

    公开(公告)日：1987-02-24

    申请号：US524841

    申请日：1983-08-19

    申请人： Eric J. Ramm ,  Alfred E. Ringwood

    发明人： Eric J. Ramm ,  Alfred E. Ringwood

    IPC分类号： G21F9/30 ,  G21F9/00 ,  G21F9/34 ,  G21F9/16 ,  G21F9/12

    CPC分类号： G21F9/34

    摘要： Particulate material is poured into a container which is decay and heat resistant, the container is sealed and subjected to axial compression at elevated temperature to cause densification of the material, there being an arrangement for preventing substantial radially outward deformation of the container during compression. An important application is to immobilization of nuclear reactor waste in a synthetic rock structure formed during the high temperature compression step, and advantageously the containers are secured within an outer metal cannister for subsequent safe handling and disposal. An important embodiment includes a bellows container which advantageously is upwardly pressed into an inverted metal cannister restrained by an upper abutment, the bellows container becoming an interference fit within the metal cannister during the final portion of compression, but the bellows container wall itself being substantially sufficient to prevent gross outward deformation of the bellows container.

    摘要翻译： 将颗粒料倒入容器中，该容器是腐蚀和耐热的，容器被密封并在升高的温度下进行轴向压缩以使材料致密化，因此存在防止压缩过程中容器的径向向外变形的布置。 重要的应用是将核反应堆废物固定在高温压缩步骤中形成的合成岩石结构中，并且有利地将容器固定在外金属罐内，以便随后的安全处理和处置。 一个重要的实施例包括一个波纹管容器，其有利地向上压入由上邻接件约束的倒置的金属罐中，波纹管容器在压缩的最后部分期间成为金属罐内的过盈配合，但是波纹管容器壁本身基本上足够 以防止波纹管容器的总体向外变形。

    Container for radioactive nuclear waste materials
    3.
    发明授权
    Container for radioactive nuclear waste materials 失效
    放射性核废料容器

    公开(公告)号：US4192765A

    公开(公告)日：1980-03-11

    申请号：US878113

    申请日：1978-02-15

    申请人： John M. Bird ,  Alfred E. Ringwood

    发明人： John M. Bird ,  Alfred E. Ringwood

    IPC分类号： G21F1/08 ,  G21F5/005 ,  G21F9/36 ,  G21F5/00 ,  G21F9/00

    CPC分类号： G21F9/36 ,  G21F1/08 ,  G21F5/005

    摘要： Disclosed are two improved container alloys for radioactive nuclear waste. Radioactive nuclear waste can be contained over extended periods of time by encapsulating the waste materials in containers composed of these alloys and burying the containers underground in an impervious, stable rock formation.

    摘要翻译： 公开了两种改进的放射性核废料容器合金。 放射性核废料可以通过将废料封装在由这些合金组成的容器中并将地下的容器埋入不渗透，稳定的岩层中，从而延长使用时间。

    Treatment of high level nuclear reactor wastes
    4.
    发明授权
    Treatment of high level nuclear reactor wastes 失效
    处理高水平核反应堆废物

    公开(公告)号：US4274976A

    公开(公告)日：1981-06-23

    申请号：US54957

    申请日：1979-07-03

    申请人： Alfred E. Ringwood

    发明人： Alfred E. Ringwood

    IPC分类号： G21F9/30 ,  G21F9/34

    CPC分类号： G21F9/302

    摘要： A process for immobilizing high level radioactive waste (HLW) calcine comprises the steps of:(1) mixing the HLW calcine with a mixture of oxides, the oxides in the mixture and the relative proportions thereof being selected so as to form a mixture which, when heated and then cooled, crystallizes to produce a mineral assemblage containing well-formed crystals capable of providing lattice sites in which elements of the HLW are securely bound, the crystals belonging to or possessing crystal structures closely related to crystals belonging to mineral classes which are resistant to leaching and alteration in appropriate geological environments and including crystals belonging to the titanate classes of minerals; and(2) heating and then cooling the mixture so as to cause crystallization of the mixture to a mineral assemblage having the elements of the HLW incorporated as solid solutions within the crystals thereof.A mineral assemblage having elements of HLW calcine incorporated within the crystals thereof is also disclosed.

    摘要翻译： 固定高级放射性废物（HLW）煅烧的方法包括以下步骤：（1）将HLW煅烧物与氧化物的混合物混合，混合物中的氧化物及其相对比例被选择以形成混合物， 当加热然后冷却时，结晶以产生含有良好形成的晶体的矿物组合，其能够提供其中HLW的元素被牢固地结合的晶格位置，属于或具有与属于矿物类别的晶体密切相关的晶体结构的晶体 在适当的地质环境中耐浸出和变质，包括属于钛酸盐矿物的晶体; 和（2）加热然后冷却混合物，以使混合物结晶成矿物组合物，其中HLW的元素作为固体溶液掺入其晶体内。 还公开了一种具有并入其晶体内的HLW煅烧元素的矿物组合物。

    Process for the treatment of high level nuclear wastes
    7.
    发明授权
    Process for the treatment of high level nuclear wastes 失效
    处理高水平核废料的过程

    公开(公告)号：US4329248A

    公开(公告)日：1982-05-11

    申请号：US124953

    申请日：1980-02-26

    申请人： Alfred E. Ringwood

    发明人： Alfred E. Ringwood

    IPC分类号： G21F9/16

    CPC分类号： G21F9/162

    摘要： A process for immobilizing high level waste (HLW) sludge containing aluminium and/or iron compounds which comprises the steps of:(1) mixing the sludge with a mixture of oxides, the oxides in said mixture and the relative proportions thereof being selected so as to form a mixture when heated at temperatures between 800.degree. and 1400.degree. C. crystallizes to produce a mineral assemblage containing (i) crystals capable of providing lattice sites in which the fission product and actinide elements of said HLW sludge are securely bound, and (ii) crystals of at least one inert phase containing excess aluminium and/or iron, said crystals belonging to or possessing crystal structures closely related to crystals belonging to mineral classes which are resistant to leaching and alteration in appropriate geologic environments; and(2) heating and then cooling said mixture under reducing conditions so as to cause crystallization of the mixture to a mineral assemblage having the fission product and actinide elements of said HLW sludge incorporated as solid solutions within the crystals thereof, and the excess aluminium and/or iron crystallized in at least one inert phase.A mineral assemblage containing immobilized HLW sludge containing aluminium and/or iron compounds incorporated within the crystals thereof is also disclosed.

    摘要翻译： 一种用于固定含有铝和/或铁化合物的高级废物（HLW）污泥的方法，其包括以下步骤：（1）将污泥与氧化物的混合物混合，所述混合物中的氧化物及其相对比例选择为 在800至1400℃的温度下加热时形成混合物，结晶以产生矿物组合物，其中含有（i）能够提供晶格位点的晶体，其中所述HLW污泥的裂变产物和锕系元素被牢固地结合，和 ii）含有过量的铝和/或铁的至少一个惰性相的晶体，所述晶体属于或具有与属于矿物类的晶体密切相关的晶体结构，其在适当的地质环境中耐浸出和变化; 和（2）在还原条件下加热然后冷却所述混合物，以使混合物结晶成矿物组合物，其中所述HLW污泥的裂变产物和锕系元素作为固溶体掺入其晶体内，并且过量的铝和 /或铁在至少一个惰性相中结晶。 还公开了含有结合在其晶体内的含有铝和/或铁化合物的固定化HLW污泥的矿物组合物。

    Abrasive compact of cubic boron nitride and method of making same
    8.
    发明授权
    Abrasive compact of cubic boron nitride and method of making same 失效
    立方氮化硼磨料及其制作方法

    公开(公告)号：US5288297A

    公开(公告)日：1994-02-22

    申请号：US978386

    申请日：1992-11-18

    申请人： Alfred E. Ringwood

    发明人： Alfred E. Ringwood

    IPC分类号： B24D3/00 ,  B01J3/06 ,  C04B35/58 ,  C04B35/583 ,  C04B35/5831 ,  C04B35/584 ,  C09K3/14 ,  C22C26/00

    CPC分类号： C22C26/00 ,  B01J3/062 ,  C04B35/5831 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0685 ,  C22C2026/005

    摘要： An abrasive compact comprising 40 to 90 volume percent of cubic boron nitride (CBN) crystals bonded by 60 to 10 volume percent of a bonding matrix comprised mainly of an intimate mixture of silicon nitride and metallic diboride MB.sub.2 where M represents metal atoms chosen from the group of titanium, zirconium and hafnium atoms. The compact may be produced by a method which comprises intimately mixing particulate CBN crystals with a bonding agent in the proportion 95 to 60 volume percent of CBN and 5 to 40 volume percent of bonding agent, the bonding agent containing the metal atoms in the atomic proportions Si.sub.30 M.sub.70 to Si.sub.85 M.sub.15, subjecting the mixture of CBN crystals and bonding agent to temperatures in the range 900.degree. to 1800.degree. C. and pressures in the range 5 to 70 Kilobars, and maintaining the temperature and pressure conditions for a period of at least about 30 seconds, sufficient to cause most of bonding agent to form the bonding matrix.

    摘要翻译： 一种包含40至90体积％的立方氮化硼（CBN）晶体的研磨压块，其通过60至10体积％的主要由氮化硅和金属二硼化物MB2的紧密混合物组成的键合基体结合，其中M表示选自组中的金属原子 的钛，锆和铪原子。 压块可以通过以下方法制备：将CBN晶粒与结合剂以95〜60体积％的CBN和5〜40体积％的粘合剂的比例密合地混合，所述粘合剂含有原子比例的金属原子 Si30M70至Si85M15，将CBN晶体和粘合剂的混合物经受900至1800摄氏度的温度和5至70千帕的范围内的压力，并将温度和压力条件保持至少约 30秒，足以使大部分粘结剂形成接合基质。

    Diamond compact possessing low electrical resistivity
    9.
    发明授权
    Diamond compact possessing low electrical resistivity 失效
    金刚石紧凑型低电阻率

    公开(公告)号：US5106393A

    公开(公告)日：1992-04-21

    申请号：US499300

    申请日：1990-05-15

    申请人： Alfred E. Ringwood

    发明人： Alfred E. Ringwood

    IPC分类号： B23P15/28 ,  B01J3/06 ,  B24D3/34 ,  C04B35/52 ,  C09K3/14 ,  E21B10/56 ,  E21B10/567

    CPC分类号： E21B10/567 ,  B01J3/062 ,  B24D3/34 ,  C04B35/52 ,  C04B35/6316 ,  C04B35/645 ,  C09K3/1436 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  C04B2235/3826 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/42 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/616 ,  C04B2235/6562 ,  C04B2235/721 ,  C04B2235/722 ,  C04B2235/727 ,  C04B2235/728 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/95 ,  C04B2235/96

    摘要： A diamond compact comprised of more than 60 volume percent and less than 90 volume percent of diamond crystals connected by a silicon carbide bond. The bond contains more than 500 parts per million of nitrogen and/or phosphorus and the compact possesses a low electrical resistivity of less than 0.2 ohm cm. The compact may be produced by a process in which the diamond crystals are intimately mixed with a bonding agent comprising silicon and the mixture is subjected within a confining space to a high temperature and pressure within the graphite stability field to cause silicon in the bonding agent to react extensively with carbon in the diamond crystals to form the silicon carbide bond. To produce the low electrical resistivity, a material containing nitrogen and/or phosphorus is introduced into the confining space prior to application of the high temperature and pressure conditions. In a modified process, the mixed diamond crystals and bonding agent are placed immediately adjacent to one or more bodies of silicon within the confining space prior to application of the high pressure and temperature conditions. In this process, the nitrogen and/or phosphorus containing material may be mixed with the diamond crystals and bonding agent and/or with one of the additional bodies of silicon prior to application of the high temperature and pressure conditions.

    摘要翻译： PCT No.PCT / AU89 / 00273 Sec。 371日期1990年5月15日 102（e）日期1990年5月15日PCT提交1989年6月27日PCT公布。 第WO90 / 01986号公报 1990年3月8日。一种由超过60体积百分比和小于90体积百分比的由碳化硅键连接的金刚石晶体组成的金刚石压块。 该键含有超过500ppm的氮和/或磷，并且致密体具有小于0.2欧姆厘米的低电阻率。 可以通过将金刚石晶体与包含硅的粘合剂紧密混合的方法来制造压块，并且将该混合物在限制空间内经受石墨稳定性场内的高温和高压，以使粘合剂中的硅 与金刚石晶体中的碳充分反应形成碳化硅键。 为了产生低电阻率，在施加高温和高压条件之前，将含氮和/或磷的材料引入约束空间。 在改进的方法中，混合金刚石晶体和粘合剂在施加高压和温度条件之前立即与封闭空间内的一个或多个硅体立即相邻。 在该方法中，在施加高温和高压条件之前，可以将含氮和/或磷的材料与金刚石晶体和粘合剂和/或与一种额外的硅体混合。

    Hot pressing of bellows like canisters
    10.
    发明授权
    Hot pressing of bellows like canisters 失效
    热压波纹管像罐

    公开(公告)号：US4808337A

    公开(公告)日：1989-02-28

    申请号：US884981

    申请日：1986-07-14

    申请人： Eric J. Ramm ,  Wilhelmus J. Bukyx ,  John G. Padgett ,  Alfred E. Ringwood

    发明人： Eric J. Ramm ,  Wilhelmus J. Bukyx ,  John G. Padgett ,  Alfred E. Ringwood

    IPC分类号： G21F9/30 ,  G21F9/00 ,  G21F9/34 ,  G21F9/36 ,  G21F9/16 ,  G21F9/12

    CPC分类号： G21F9/34

    摘要： A compressible bellows type metal canister is used in a hot pressing process for immobilizing high level radioactive nuclear waste material in the form of synthetic rock, the canister comprises a base wall and a corrugated bellows side wall of generally circular cross-section, concentrically arranged within the corrugated side wall is a cylindrical liner. In the center of the base wall a conically-tapered aperture is provided with a filter plug. Diametrically opposed apertures are provided in the base wall and are connected by an outlet pipe for removal of waste gases.

    摘要翻译： 一种可压缩波纹管式金属罐用于热压工艺中，用于固定合成岩石形式的高放射性核废料，该罐包括基本壁和基本圆形横截面的波纹波纹管侧壁，同心地布置在 波纹侧壁是圆柱形衬套。 在底壁的中心，锥形锥形孔设有过滤塞。 直径相对的孔设置在底壁中，并通过出口管连接，用于除去废气。