Phenylene ether oligomer composition

    公开(公告)号:US12173118B2

    公开(公告)日:2024-12-24

    申请号:US16902831

    申请日:2020-06-16

    Abstract: A phenylene ether oligomer composition is disclosed comprising, a phenylene ether oligomer having an external amine content of less than or equal to 1.5 weight percent; and a residual solvent in an amount of 10 to 10000 parts per million by weight, based on the weight of the phenylene ether oligomer composition; wherein the phenylene ether oligomer composition has an intrinsic viscosity of 0.03 to 0.13 deciliter per gram; a glass transition temperature of 135 to 175° C., or a combination thereof.

    Shell-and-tube equipment with distribution device

    公开(公告)号:US11045779B2

    公开(公告)日:2021-06-29

    申请号:US16759219

    申请日:2018-10-25

    Inventor: Alberto Gozzini

    Abstract: A shell-and-tube equipment has a cylindrical geometry and is arranged along a vertical axis. The shell-and-tube equipment comprises an upper chamber and a lower chamber connected to a common tube bundle on opposite sides. The upper chamber is provided with at least an inlet nozzle for inletting a first fluid. The tube bundle is surrounded by a shell provided with nozzles for inletting and outletting a second fluid which exchanges heat with the first fluid through the tube bundle. The upper chamber encloses at least a distribution device configured for uniformly delivering the first fluid towards the tube bundle. The distribution device comprises an annular channel which is arranged around the vertical axis and is in fluid communication with the inlet nozzle. The distribution device comprises a plurality of channel modules of circular trapezoid shape, tightly joined together at their respective vertical edges for forming the annular channel.

    SHELL-AND-TUBE EQUIPMENT WITH DISTRIBUTION DEVICE

    公开(公告)号:US20200306711A1

    公开(公告)日:2020-10-01

    申请号:US16759219

    申请日:2018-10-25

    Inventor: Alberto GOZZINI

    Abstract: A shell-and-tube equipment has a cylindrical geometry and is arranged along a vertical axis. The shell-and-tube equipment comprises an upper chamber and a lower chamber connected to a common tube bundle on opposite sides. The upper chamber is provided with at least an inlet nozzle for inletting a first fluid. The tube bundle is surrounded by a shell provided with nozzles for inletting and outletting a second fluid which exchanges heat with the first fluid through the tube bundle. The upper chamber encloses at least a distribution device configured for uniformly delivering the first fluid towards the tube bundle. The distribution device comprises an annular channel which is arranged around the vertical axis and is in fluid communication with the inlet nozzle. The distribution device comprises a plurality of channel modules of circular trapezoid shape, tightly joined together at their respective vertical edges for forming the annular channel.

    Method for enhancing catalyst selectivity
    117.
    发明授权
    Method for enhancing catalyst selectivity 有权
    提高催化剂选择性的方法

    公开(公告)号:US07993599B2

    公开(公告)日:2011-08-09

    申请号:US11681518

    申请日:2007-03-02

    Abstract: A method allowing the efficient conduction of highly exothermic, catalyst initiated reactions, particularly ones in which the product spectrum is highly dependant upon the temperature at which the process is conducted and to diffusional resistances within the catalyst particle matrix. The process occurs in a heat transfer device which consists of at least two channels which have at least one wall in common. Preferably two distinct sets of flow channels exist in which the process proceeds in one set of channels and heat transfer fluid passes through the second. The area of contact between the two sets of channels is sufficiently large to allow the efficient transfer of heat. These dimensions are controlled through the use of hollow catalyst particles through which the process gas can diffuse through either the inside or outside.

    Abstract translation: 允许高度放热的催化剂引发的反应的有效传导的方法,特别是其中产物光谱高度依赖于进行该方法的温度和催化剂颗粒基质内的扩散电阻的方法。 该过程发生在由至少两个具有至少一个共同的壁的通道组成的传热装置中。 优选地存在两组不同的流动通道,其中过程在一组通道中进行,并且传热流体通过第二通道。 两组通道之间的接触面积足够大以允许有效的热传递。 这些尺寸通过使用中空催化剂颗粒来控制,通过该中空催化剂颗粒,工艺气体可以通过内部或外部扩散。

    Packing layer for a structured packing
    118.
    发明申请
    Packing layer for a structured packing 有权
    包装层为结构填料

    公开(公告)号:US20100237519A1

    公开(公告)日:2010-09-23

    申请号:US12661526

    申请日:2010-03-18

    Abstract: A packing layer for a structured packing which has corrugations forming open channels. Each channel includes first and second corrugation peaks bounding a first corrugation valley with each corrugation peak having an apex and the corrugation valley having a valley bottom.A spacer element is mounted on and extends along the apex of at least one corrugation peak. The spacer element has an edge which has a larger normal spacing from the valley bottom than the spacing of the apex of the corrugation peak from the valley bottom.

    Abstract translation: 用于具有形成开放通道的波纹的规整填料的填料层。 每个通道包括界定第一波纹谷的第一和第二波纹峰,每个波峰具有顶点,波纹谷具有谷底。 间隔元件安装在至少一个波纹峰的顶点上并沿其延伸。 间隔元件具有与谷底相比具有比波纹顶点的顶点与谷底的间隔更大的正常间隔的边缘。

    Process and apparatus for producing powders of metal compound containing oxygen, and the powders produced by the process
    119.
    发明授权
    Process and apparatus for producing powders of metal compound containing oxygen, and the powders produced by the process 失效
    用于生产含氧的金属化合物的粉末的方法和设备,以及通过该方法生产的粉末

    公开(公告)号:US07489857B2

    公开(公告)日:2009-02-10

    申请号:US11735732

    申请日:2007-04-16

    Abstract: An apparatus for producing powders of metal compound containing oxygen comprising a liquid flow controller, a vaporizer and a reactor, which consists essentially of: means for feeding a gas containing a material and oxygen; means for heating the gas from the side surface of the feeding means; means for cooling the gas positioned at the downstream side of the feeding means; and means for receiving the product generated by the reaction. A process and products for producing powders of metal compound containing oxygen comprising the steps of: feeding at least one material selected from a liquid material and a solution material obtained by dissolving solid ingredient in organic solvent via a liquid flow controller into a vaporizer; vaporizing the materials in the vaporizer; adding oxygen; heating; cooling; and crystallizing. The process and the apparatus enable easily mass-producing fine powders of metal compound containing oxygen used as materials for optical crystals, nonlinear crystals or magneto-optical crystals with reasonable production cost.

    Abstract translation: 一种用于生产包含氧的金属化合物的粉末的装置,包括液体流量控制器,蒸发器和反应器,其基本上由以下部件组成:用于供给包含材料和氧气的气体的装置; 用于从进料装置的侧表面加热气体的装置; 用于冷却位于所述进给装置的下游侧的气体的装置; 以及用于接收由反应产生的产物的装置。 一种用于生产含氧的金属化合物粉末的方法和产品,包括以下步骤:将通过液体流量控制器将固体成分溶解在有机溶剂中而获得的液体材料和溶液中的至少一种材料进料到蒸发器中; 蒸发蒸发器中的物质; 加氧; 加热; 冷却; 并结晶。 该方法和装置能够以合理的生产成本容易地批量生产含有氧的金属化合物的细粉末作为光学晶体的材料,非线性晶体或磁光晶体。

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