利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.021 秒)

    Air sparged hydrocyclone flotation apparatus and methods for separating particles from a particulate suspension
    12.
    发明授权
    Air sparged hydrocyclone flotation apparatus and methods for separating particles from a particulate suspension 失效
    气动旋流旋流器浮选装置和从颗粒悬浮液中分离颗粒的方法

    公开(公告)号：US4838434A

    公开(公告)日：1989-06-13

    申请号：US194823

    申请日：1988-05-17

    申请人： Jan D. Miller ,  Ye Yi

    发明人： Jan D. Miller ,  Ye Yi

    IPC分类号： B03D1/14 ,  B03D1/24 ,  B04C5/10 ,  B04C7/00 ,  B04C9/00

    CPC分类号： B03D1/1425 ,  B03D1/028 ,  B03D1/1462 ,  B03D1/1493 ,  B03D1/24 ,  B04C5/10 ,  B04C7/00 ,  B04C9/00

    摘要： The present invention is directed to air sparged hydrocyclone flotation apparatus and methods for separating particles from particulate suspensions (such as coal and mineral ore slurries), wherein fluid discharge is removed annularly from a flotation vessel. Preferably, the flotation apparatus includes a vertically oriented cylindrical flotation vessel having a tangential inlet at its upper end and an annular outlet at its lower end. The annular outlet allows for the smooth exit of fluid discharge from the flotation vessel so as to avoid disturbance of the fluid flow within the flotation vessel. Air is sparged into the vessel and a froth which contains the recovery products exits through a vortex finder positioned in the upper end of the vessel. The apparatus includes a froth pedestal positioned within the vessel which forms the annular outlet with the wall of the vessel. The froth pedestal may take a generally cylindrical or a generally conical configuration. The conical froth pedestal extends into the vessel from near the bottom of the vessel to at least one-half the distance to the vortex finder. The froth pedestal further serves, among other things, to support the froth column formed within the flotation vessel and isolate the froth column from the fluid discharge so as to minimize mixing therebetween.

    摘要翻译： 本发明涉及用于从颗粒悬浮液（例如煤和矿石浆料）中分离颗粒的鼓风水力旋流浮选装置和方法，其中流体排放物从浮选槽环形地移除。 优选地，浮选装置包括垂直定向的圆柱形浮选槽，其上端具有切向入口，在其下端具有环形出口。 环形出口允许流体从浮选槽排出的顺利排出，以避免扰动浮选槽内的流体流动。 空气被喷射到容器中，并且含有回收产物的泡沫通过定位在容器上端的涡流取样器排出。 该装置包括位于容器内的泡沫底座，其与容器的壁形成环形出口。 泡沫基座可以采用大致圆柱形或大致圆锥形的构型。 圆锥形泡沫基座从容器底部延伸到容器中至少距离涡流探测器的距离的一半。 泡沫基座进一步用于支撑形成在浮选槽内的泡沫塔，并将泡沫塔与流体排放隔离，以使其间的混合最小化。

    Process for recovering products from tar sand
    15.
    发明授权
    Process for recovering products from tar sand 失效
    从焦油砂中回收产品的工艺

    公开(公告)号：US4409090A

    公开(公告)日：1983-10-11

    申请号：US344324

    申请日：1982-02-01

    申请人： Francis V. Hanson ,  Jan D. Miller ,  Alex G. Oblad

    发明人： Francis V. Hanson ,  Jan D. Miller ,  Alex G. Oblad

    IPC分类号： C10G1/00 ,  C10G1/02 ,  C10G1/04

    CPC分类号： C10G1/02 ,  C10G1/006 ,  C10G1/047

    摘要： A combination physical separation process and thermal fluidized bed process for recovering products from tar sands. The process includes initially separating a portion of the sand from the tar sand through a physical separation process, yielding a bitumen-rich concentrate. The bitumen-rich concentrate is introduced into a heated fluidized bed and products are recovered and distilled into their respective fractions. A coked sand is removed from the fluidized bed and placed into a combustor where the carbonaceous residue on the sand is burned to produce a hot burnt sand, a portion of which may be recycled to provide heat to the bitumen-rich concentrate in the fluidized bed. The coked sand and a certain fraction of the distilled products may be recycled to the physical separation process to improve the separation efficiency thereof.

    摘要翻译： 用于从焦油砂中回收产物的组合物理分离过程和热流化床方法。 该方法包括首先通过物理分离方法将一部分砂与焦油砂分离，产生富含沥青的浓缩物。 将富含沥青的浓缩物引入加热的流化床中，将产物回收并蒸馏成各自的馏分。 将焦化的砂从流化床中移出并放置在燃烧器中，其中在砂上的碳质残余物被燃烧以产生热的烧砂，其一部分可以再循环以向流化床中的富含沥青的浓缩物提供热量 。 焦化砂和一定馏分的蒸馏产物可以再循环到物理分离过程中以提高其分离效率。

    Bitumen recovery from tar sands
    17.
    发明授权
    Bitumen recovery from tar sands 失效
    沥青从沥青砂中回收

    公开(公告)号：US4470899A

    公开(公告)日：1984-09-11

    申请号：US466282

    申请日：1983-02-14

    申请人： Jan D. Miller ,  Jan Hupka

    发明人： Jan D. Miller ,  Jan Hupka

    IPC分类号： C10G1/04

    CPC分类号： C10G1/047

    摘要： A process for recovering bitumen from tar sands wherein the tar sands are pretreated with a diluent, such as kerosene in the preferred embodiment, to lower the viscosity of the bitumen such that it is in the range of about 5 to about 20 poise at the digestion temperature. The tar sands are then digested at a temperature in the range of about 45.degree. C. to about 60.degree. C. and at a pH of about 7.8 to about 8.6. The tar sands are then transferred to a flotation cell where the bitumen-rich concentrate is separated from the sand.

    摘要翻译： 从焦油砂中回收沥青的方法，其中焦油砂在优选实施方案中用稀释剂例如煤油进行预处理，以降低沥青的粘度，使其在消化时在约5至约20泊的范围内 温度。 沥青砂然后在约45℃至约60℃的温度和约7.8至约8.6的pH下消化。 然后将焦油砂转移到浮选槽中，其中富含沥青的浓缩物与砂分离。

    Process for obtaining products from tar sand
    19.
    发明授权
    Process for obtaining products from tar sand 失效
    从焦油砂获得产品的工艺

    公开(公告)号：US4337143A

    公开(公告)日：1982-06-29

    申请号：US155257

    申请日：1980-06-02

    申请人： Francis V. Hanson ,  Jan D. Miller ,  Alex G. Oblad

    发明人： Francis V. Hanson ,  Jan D. Miller ,  Alex G. Oblad

    IPC分类号： C10G1/00 ,  C10G1/02 ,  C10G1/04

    CPC分类号： C10G1/02 ,  C10G1/006 ,  C10G1/047

    摘要： A novel thermal process for recovering hydrocarbon and other products from tar sand. The process includes blending tar sand with a bitumen-rich concentrate while heating the same with a hot, burnt sand. The products are recovered by passing the combined feed through a fluidized bed and selectively controlling the temperature and residence times to obtain predetermined ratios of products. Coked sand residue from the fluidized bed is burned to produce the hot, burnt sand, a portion of which may be recycled to provide heat to the fluidized bed. Coked sand may also be recycled into a known, hot-water, caustic separation process where it synergistically improves the separation efficiency of the hot-water, caustic separation process.

    摘要翻译： 一种用于从焦油砂中回收烃类和其他产品的新型热处理方法。 该方法包括将焦油砂与富含沥青的浓缩物混合，同时用热的烧焦砂加热。 通过使组合的进料通过流化床并选择性地控制温度和停留时间以获得预定比例的产物来回收产物。 来自流化床的焦化砂渣被燃烧以产生热的燃烧的砂，其一部分可以被再循环以向流化床提供热量。 焦化砂还可以循环到已知的热水苛性碱分离方法中，其中它协同地提高了热水，苛性碱分离过程的分离效率。

    Separation of bitumen from dry tar sands
    20.
    发明授权
    Separation of bitumen from dry tar sands 失效
    沥青与干焦油砂分离

    公开(公告)号：US4120776A

    公开(公告)日：1978-10-17

    申请号：US828357

    申请日：1977-08-29

    申请人： Jan D. Miller ,  Jaime E. Sepulveda

    发明人： Jan D. Miller ,  Jaime E. Sepulveda

    IPC分类号： C10G1/04

    CPC分类号： C10G1/04 ,  C10G1/047

    摘要： A process for the separation and recovery of bitumen from dry tar sands or sands with negligible quantities of connate water. The process includes comminuting the tar sands to an average particle size of approximately one centimeter in diameter and digesting the comminuted tar sand in a hot, aqueous solution having a pH within the range of pH 10 to pH 14. Optimal digestion is obtained by assuring that the tar sand in the digester is within the range of 50 to 80% solids so as to provide the necessary high shear environment. The digested tar sand is thereafter subjected to a flotation process wherein additional water is introduced to lower the temperature and the solids concentration. Preferably, the pH of the separation cell is maintained above about pH 10. Air is bubbled into the mixture to carry the separated bitumen particles to the top of the separation cell for subsequent recovery.

    摘要翻译： 从干焦油砂或沙子中分离和回收沥青的方法，可以忽略不计的原生水。 该方法包括将沥青砂粉碎至直径约1厘米的平均粒度，并将pH值在pH10至pH14范围内的热的水溶液中消化经粉碎的焦油砂。最佳消化是通过确保 蒸煮器中的焦油砂在50至80％固体的范围内，以提供必要的高剪切环境。 然后将经消化的焦油砂进行浮选工艺，其中引入额外的水以降低温度和固体浓度。 优选地，将分离池的pH保持在约pH 10以上。将空气鼓泡到混合物中以将分离的沥青颗粒携带到分离池的顶部，用于随后的回收。