PLASTIC DEFORMATION MAGNESIUM ALLOY HAVING EXCELLENT THERMAL CONDUCTIVITY AND FLAME RETARDANCY, AND PREPARATION METHOD

    公开(公告)号:US20180030578A1

    公开(公告)日:2018-02-01

    申请号:US15553688

    申请日:2016-02-24

    申请人: In-Young LEE

    IPC分类号: C22C23/04 C22C1/02

    摘要: Disclosed is a magnesium alloy that has high thermal conductivity and flame retardancy and facilitates plastic working, wherein magnesium is added with 0.5 to 5 wt % of zinc (Zn) and 0.3 to 2.0 wt % of at least one of yttrium (Y) and mischmetal, with, as necessary, 1.0 wt % or less of at least one selected from among calcium (Ca), silicon (Si), manganese (Mn) and tin (Sn), the total amount of alloy elements being 2.5 to 6 wt %. A method of manufacturing the same is also provided, including preparing a magnesium-zinc alloy melt in a melting furnace, adding high-melting-point elements in the form of a master alloy and melting them, and performing mechanical stirring during cooling of a cast material in a continuous casting mold containing the magnesium alloy melt, thus producing a magnesium alloy cast material having low segregation, after which a chill is removed from the cast material or diffusion annealing is performed, followed by molding through a tempering process such as rolling, extrusion or forging. This magnesium alloy is improved in ductility by the action of alloy elements for inhibiting the formation of lamella precipitates due to a low-melting-point eutectic phase in a magnesium matrix structure, can be extruded even at a pressure of 1,000 kgf/cm2 or less due to the increased plasticity thereof, and can exhibit thermal conductivity of 100 W/m·K or more and flame retardancy satisfying the requirements for aircraft materials and is thus suitable for use in fields requiring fire safety, thereby realizing wide application thereof as a heat sink or a structural material for portable appliances, vehicles and aircraft components and contributing to weight reduction.

    Method of recycling spent flue gas denitration catalyst
    68.
    发明授权
    Method of recycling spent flue gas denitration catalyst 有权
    回收废烟气脱硝催化剂的方法

    公开(公告)号:US07943544B2

    公开(公告)日:2011-05-17

    申请号:US12007746

    申请日:2008-01-15

    IPC分类号: B01J38/02

    摘要: The present invention provides a method of recycling a spent flue gas denitration catalyst and a method of determining a washing time of the spent flue gas denitration catalyst. The method of recycling the spent flue gas denitration catalyst includes physically removing solids deposited in the spent flue gas denitration catalyst, removing poisoning substances deposited in the spent flue gas denitration catalyst by washing the spent flue gas denitration catalyst with a washing liquid for a washing time determined by measuring the hydrogen ion concentration of the washing liquid and drying the resulting spent flue gas denitration catalyst.

    摘要翻译: 本发明提供了废废气脱硝催化剂的再循环方法和废烟气脱硝催化剂的洗涤时间的测定方法。 废弃废气脱硝催化剂的再循环方法包括物理去除废烟道气脱硝催化剂中沉积的固体,通过用洗涤液洗涤废烟道脱硝催化剂洗涤废废气脱硝催化剂中的中毒物质,洗涤时间 通过测量洗涤液的氢离子浓度和干燥所得到的废烟气脱硝催化剂来测定。