PROCESS FOR RECOVERING BASE METALS FROM USED HYDROPROCESSING CATALYST
    3.
    发明公开
    PROCESS FOR RECOVERING BASE METALS FROM USED HYDROPROCESSING CATALYST 有权
    中回收贵金属从二手NOT加氢处理催化剂

    公开(公告)号:EP2334428A4

    公开(公告)日:2014-03-19

    申请号:EP08853416

    申请日:2008-11-27

    申请人: CHEVRON USA INC

    摘要: A method for recovering metals from a spent dispersed catalyst originating from a Group VIB metal sulfide catalyst containing at least a Group VB and Group VIII metal for hydrocarbon oil hydroprocessing is disclosed. In one embodiment, the method comprises the steps of: pyrolyzing a stream containing spent dispersed catalyst in heavy oil to provide one or more lighter oil products and a coke-like material; contacting the stream comprising the used dispersed catalyst with a leaching solution containing ammonia and air to dissolve the group VIB metal and the Group VIII metal into the leaching solution at sufficient temperature and pressure; forming a slurry containing at least a group VIB metal complex and at least a group VIII metal complex, ammonium sulfate and solid residue containing at least a Group VB metal complex and coke; separating and removing the solid residue containing ammonium metavanadate and coke from the pressure leach solution (PLS); precipitating from the PLS at least a portion of the Group VIB metal and at least a portion of the Group VIII metal by controlling the pH at a pre-selected pH to selectively precipitate as metal complexes the Group VIB and Group VIII metals.

    METHODS AND APPARATUSES FOR PRODUCING METALLIC COMPOSITIONS VIA REDUCTION OF METAL HALIDES
    5.
    发明公开
    METHODS AND APPARATUSES FOR PRODUCING METALLIC COMPOSITIONS VIA REDUCTION OF METAL HALIDES 有权
    方法和金属化合物的生产装置通过减少金属卤化物

    公开(公告)号:EP1670961A1

    公开(公告)日:2006-06-21

    申请号:EP04780309.3

    申请日:2004-08-06

    申请人: SRI International

    IPC分类号: C22B34/12 C22B5/16 C22B34/22

    摘要: Methods and apparatuses for producing a solid metallic composition by reacting a gaseous metal halide with a reducing agent are described. The method generally includes reacting a gaseous metal halide with a reducing agent in a manner effective to form a nonsolid reaction product, wherein the metal halide has the formula MXi, in which M is a metal selected from a transition metal of the periodic table, aluminum, silicon, boron, and combinations thereof, X is a halogen, i is greater than 0, and the reducing agent is a gaseous reducing agent selected from hydrogen and a compound that releases hydrogen, and combinations thereof; and solidifying the reaction product, thereby forming a metallic composition comprising M that is substantially free from halides. In another aspect, a method for producing a solid metallic composition is provided in which a metal subhalide is reduced by reaction with a gaseous reducing agent to form a nonsolid reaction product; which is then solidified to form a metallic composition comprising the metal that is substantially free from halides, oxygen, nitrogen, and carbon. An apparatus for producing a metallic solid composition is also provided that includes a source of a metal halide having the formula MXi; a source of a reducing agent wherein the reducing agent is a gaseous reducing agent selected from hydrogen and a compound that releases hydrogen, and combination thereof; a reactor in communication with the metal halided and the reducing agent sources, wherein the reactor provides conditions effective to carry out a gaseous reaction between the metal halide and the reducing agent to form a nonsolid reaction product; and a means for solidifying the reaction product to form a metallic composition comprising M that is substantially free from halides. The invention may be used to produce high-purity metallic compositions, particularly titanium particles and alloys thereof for use in powder metallurgy applications.

    Method for producing hydrogen storage alloy
    10.
    发明公开
    Method for producing hydrogen storage alloy 失效
    生产氢储存合金的方法。

    公开(公告)号:EP0614236A3

    公开(公告)日:1994-09-21

    申请号:EP94102826.8

    申请日:1994-02-24

    摘要: In a method for producing a multi-component hydrogen storage alloy including metals of zirconium or vanadium, oxides of these metals is used to produce an alloy having characteristics equivalent to that produced with pure metals. It comprises steps of calcining the raw material, wherein at least one selected from the group consisting of zirconium and vanadium is included in its oxide form, at a temperature ranging from 900°C to 1300°C, mixing metal calcium with said calcined raw material, and treating the mixture with heat at a temperature ranging from the melting point of metal calcium to 1300°C, under inert gas atmosphere.

    摘要翻译: 在包含锆或钒的金属的多组分储氢合金的制造方法中,使用这些金属的氧化物来制造具有与纯金属相同的特性的合金。 其包括煅烧原料的步骤,其中在900℃至1300℃的温度范围内以其氧化物形式包含选自锆和钒的至少一种,将金属钙与所述煅烧原料混合 并在惰性气体气氛下,在金属钙的熔点至1300℃的温度范围内加热处理混合物。