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    Ethylene polymer resins for blow molding applications
    3.
    发明授权
    Ethylene polymer resins for blow molding applications 失效
    用于吹塑应用的乙烯聚合物树脂

    公开(公告)号：US06194520B1

    公开(公告)日：2001-02-27

    申请号：US08083864

    申请日：1993-06-28

    申请人： Subrahmanyam Cheruvu ,  Thomas E. Nowlin ,  S. Christine Ong ,  Giyarpuram N. Prasad ,  Paul P. Tong

    发明人： Subrahmanyam Cheruvu ,  Thomas E. Nowlin ,  S. Christine Ong ,  Giyarpuram N. Prasad ,  Paul P. Tong

    IPC分类号： C08L2308

    CPC分类号： C08L23/06 ,  B01J8/26 ,  B01J2219/0004 ,  C08F210/16 ,  C08F297/083 ,  C08L23/0815 ,  C08L2308/00 ,  C08L2314/02 ,  C08L2666/04 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/26 ,  C08F2500/01 ,  C08F2500/18 ,  C08F2500/02

    摘要： A class of relatively high molecular weight, high density ethylene polymer blends is disclosed capable of being blow molded with excellent processability into articles, e.g., bottles, of superior mechanical and other properties, such blends having a density of at least about 0.930 g/cc, a flow index (I21) of at least about 2 g/10 min., a melt flow ratio (MFR) of at least about 60, and a polydispersity index of at least about 8, the polymers of said blend consisting essentially of at least about 0.3 weight fraction of a relatively high molecular weight (HMW) component having a density of at least about 0.900 g/cc, a flow index or high load melt index (I21) of at least about 0.2 g/10 min., and a flow ratio (FR) at least about 10, and a relatively low molecular weight (LMW) component having a density of at least about 0.930 g/cc and a melt index (I2) no greater than about 1000 g/10 min.

    摘要翻译： 公开了一类相对高分子量的高密度乙烯聚合物共混物，其能够以优异的加工性吹塑成具有优异的机械性能和其它性能的制品例如瓶，这种共混物的密度为至少约0.930g / cc ，至少约2g / 10min的流动指数（I 21），至少约60的熔体流动比（MFR）和至多约8的多分散指数，所述共混物的聚合物基本上由 至少约0.3重量份的密度为至少约0.900g / cc，流动指数或高负载熔体指数（I21）为至少约0.2g / 10min的相对高分子量（HMW）组分，以及 至少约10的流动比（FR）和至少约0.930g / cc的密度和不大于约1000g / 10min的熔体指数（I 2）的相对低分子量（LMW）组分。

    Particle movement system with control of dust
    5.
    发明授权
    Particle movement system with control of dust 失效
    颗粒运动系统，控制灰尘

    公开(公告)号：US5111854A

    公开(公告)日：1992-05-12

    申请号：US662660

    申请日：1991-03-01

    申请人： Brendan J. Begley ,  Subrahmanyam Cheruvu

    发明人： Brendan J. Begley ,  Subrahmanyam Cheruvu

    IPC分类号： B65B69/00

    CPC分类号： B65B69/00

    摘要： A system for removing particulate material from a drum wherein the drum lid is replaced by a lid which is specially designed for this service. This new lid has at least a portion which is transparent so the operator can see into the drum and determine when and if it is empty. It also has a resilient portion which includes radial slits emanating from a predetermined point to produce an iris through which a wand can be inserted. The wand is operatively connected to a vacuum system so that the operator can insert the wand into the drum through the iris, and have the iris conform to the wand sufficiently that the vacuum being pulled through the wand sucks the particles out of the drum.

    摘要翻译： 一种用于从鼓中去除颗粒材料的系统，其中鼓盖由专门设计用于该服务的盖子代替。 这个新的盖子至少有一部分是透明的，所以操作者可以看到滚筒，并确定它何时是空的。 它还具有弹性部分，其包括从预定点发出的径向狭缝，以产生可以插入魔杖的虹膜。 魔杖可操作地连接到真空系统，使得操作者可以通过虹膜将魔杖插入到滚筒中，并且使虹膜能够充分地符合魔杖，使得通过魔杖拉动的真空将颗粒吸出滚筒。

    Hydrosizing method and apparatus
    6.
    发明授权
    Hydrosizing method and apparatus 失效
    水化方法和装置

    公开(公告)号：US4705623A

    公开(公告)日：1987-11-10

    申请号：US804572

    申请日：1985-12-04

    申请人： Subrahmanyam Cheruvu

    发明人： Subrahmanyam Cheruvu

    IPC分类号： B03B5/62 ,  B03B5/64 ,  B03B5/66

    CPC分类号： B03B5/64 ,  B03B5/62 ,  B03B5/623 ,  B03B5/66

    摘要： An apparatus and method for separating particulate solid from a solid mixture based on the size of the particles which includes feeding a slurry of the particulate solid mixture into an upper vessel portion adapted to be filled with liquid such as the slurried particulate. The apparatus also includes a lower vessel portion having a cross-sectional area which is less than the cross-sectional area of the upper vessel portion and is sealingly connected for fluid communication with the upper vessel portion by an outwardly diverging wall located at the top of the lower vessel portion. The upper vessel portion has a free-settling region for separating particulate solids. The particulate containing slurry is met with an upwardly directed stream of fluidization fluid, e.g., water, in the lower vessel portion wherein a first fraction-containing solid particulate which has descended through the fluidization stream is directed from the apparatus by a means therefor. A second fraction containing substantially fines is removed from the top of the upper vessel portion. In a preferred embodiment of the invention, an additional separation operation is performed by use of an additional reduced-size vessel.

    摘要翻译： 一种用于根据颗粒尺寸从固体混合物中分离颗粒固体的装置和方法，其包括将颗粒状固体混合物的浆料进料到适于填充液体的上部容器部分，例如浆状颗粒。 该装置还包括下部容器部分，该下部容器部分的横截面面积小于上部容器部分的横截面面积，并被密封地连接以便通过位于上部容器部分顶部的向外发散的壁与上部容器部分流体连通 下部血管部分。 上容器部分具有用于分离颗粒固体的自由沉降区域。 含颗粒的浆料在下部容器部分中满足向上流动的流化流体流，例如水，其中已经下降通过流化流的第一级分的固体颗粒通过其装置从装置引导。 从上部容器部分的顶部除去基本上细粉末的第二部分。 在本发明的一个优选实施例中，通过使用附加的减小尺寸的容器进行附加的分离操作。

    Method for conditioning phosphate ores
    7.
    发明授权
    Method for conditioning phosphate ores 失效
    磷矿石调理方法

    公开(公告)号：US4556545A

    公开(公告)日：1985-12-03

    申请号：US647503

    申请日：1984-09-05

    申请人： Subrahmanyam Cheruvu

    发明人： Subrahmanyam Cheruvu

    IPC分类号： B03D1/001 ,  B03D1/004 ,  B03D1/02 ,  C01F1/00 ,  B03D1/14 ,  C01B25/16 ,  C01F5/00

    CPC分类号： B03D1/021 ,  B03D1/006 ,  B03D1/008 ,  B03D2203/06

    摘要： There is disclosed an improved process of beneficiating phosphate-containing ores. The process comprises stabilizing a hydrocarbon oil, normally used in a conditioning step to improve separation of the ore from the solid contaminants in a flotation step, upstream of the conditioning step. The oil is stabilized by conducting it to a pre-stabilization step wherein it is mixed with at least one fatty acid or saponified fatty acid and water to form a stable, homogeneous emulsion. The emulsion is then transferred to the conditioning step wherein it is mixed with the phosphate-containing ore.

    摘要翻译： 公开了一种改善含磷矿石的方法。 该方法包括稳定通常用于调节步骤的烃油，以在调节步骤的上游，在浮选步骤中改善矿石与固体污染物的分离。 通过将其进行预稳定化步骤来稳定油，其中其与至少一种脂肪酸或皂化的脂肪酸和水混合以形成稳定的均匀乳液。 然后将乳液转移到其中将其与含磷酸盐矿石混合的调节步骤。