Method for extracting metals from metal-containing materials by
pyrohydrolysis
    8.
    发明授权
    Method for extracting metals from metal-containing materials by pyrohydrolysis 失效
    通过热解法从含金属材料中提取金属的方法

    公开(公告)号:US6030433A

    公开(公告)日:2000-02-29

    申请号:US750342

    申请日:1997-02-05

    摘要: A method for extracting metals from metal-containing materials, especially waste, by pyrohydrolysis. The metal-containing materials which contain at least one or more of the metals from the group consisting of Zn, Cd, Pb, Hg, Cu, Sn (as Sn(0) and Sn(II)), As, Sb, Au, Ag and Bi, are made to react at 700-1100.degree. C., advantageously 800-900.degree. C., with a gas composition which at least comprises 25-45% by volume of water vapor, 0-12% by volume of carbon dioxide, 2-20% by volume of hydrogen chloride, 0-15% by volume of carbon monoxide, the remainder being nitrogen and possibly oxygen. The metals from the above-mentioned group are extracted in the form of volatile metal chlorides. More particularly, metal-containing materials are used which also contain one or more metals from the group consisting of Fe, Cr, Mn, Ni, Mg, Ca, Al, Si, Ti, Co and Zr, this last group of materials being hydrolysed, under the reaction conditions, to give non-volatile metal oxides, or remain, in the oxidic form, or form (2) a non-volatile metal chloride and therefore remain behind in the starting material.

    摘要翻译: PCT No.PCT / NL95 / 00185 Sec。 371日期1997年2月5日 102(e)日期1997年2月5日PCT Filed Jun。1,1995 PCT Pub。 WO95 / 33686 PCT公开号 日期1995年12月14日一种通过热解解从含金属材料,特别是废物中提取金属的方法。 含有Zn,Cd,Pb,Hg,Cu,Sn(Sn(0)和Sn(II))中的至少一种或多种金属的含金属材料,As,Sb,Au, Ag和Bi在700-1100℃(有利地800-900℃)下与气体组合物反应,该组合物至少包含25-45体积%的水蒸汽,0-12体积%的碳 二氧化碳,2-20体积%的氯化氢,0-15体积%的一氧化碳,其余的是氮气和可能的氧气。 来自上述组的金属以挥发性金属氯化物的形式提取。 更具体地,使用含有Fe,Cr,Mn,Ni,Mg,Ca,Al,Si,Ti,Co和Zr的一种或多种金属的含金属材料,最后一组被水解的材料 在反应条件下,得到非挥发性金属氧化物,或保留为氧化形式,或形成(2)非挥发性金属氯化物,因此留在起始原料中。

    Preparation of lucas reagent of enhanced utility and its use in
synthesis of cycloaliphatic chlorides
    9.
    发明授权
    Preparation of lucas reagent of enhanced utility and its use in synthesis of cycloaliphatic chlorides 失效
    制备增强效用的卢卡斯试剂及其在合成环脂族氯化物中的应用

    公开(公告)号:US5856597A

    公开(公告)日:1999-01-05

    申请号:US846095

    申请日:1997-04-25

    IPC分类号: C01G9/04 C07C17/16

    CPC分类号: C07C17/16 C01G9/04 Y02P20/582

    摘要: Gaseous anhydrous hydrogen chloride is introduced into an aqueous solution of zinc chloride under conditions effective to produce a more efficient Lucas reagent than a Lucas reagent made by mixing solid, anhydrous zinc chloride with 38% hydrochloric acid. For example, the reaction rate of such Lucas reagent with levo-menthol is much faster and requires a much shorter reaction period than Lucas reagent formed in the conventional manner from anhydrous, solid zinc chloride and concentrated (38%) hydrochloric acid. Also, the conversion to levo-menthyl chloride was higher when using Lucas reagent formed using gaseous anhydrous hydrogen chloride and aqueous zinc chloride solution. Also, Lucas reagent made in this manner is highly amenable to recycling, and requires only addition thereto of hydrogen chloride to replenish the catalyst for an ensuing run.

    摘要翻译: 将气态无水氯化氢引入到氯化锌水溶液中,该条件有效地产生比通过将固体无水氯化锌与38%盐酸混合的Lucas试剂更有效的Lucas试剂。 例如,这种Lucas试剂与左旋薄荷醇的反应速度要快得多,并且比用无水固体氯化锌和浓缩(38%)盐酸以常规方式形成的Lucas试剂要短得多的反应时间。 此外,当使用使用气态无水氯化氢和氯化锌水溶液形成的Lucas试剂时,转化为氯化叶绿素较高。 此外,以这种方式制备的Lucas试剂高度易于再循环,并且仅需要加入氯化氢来补充催化剂用于随后的运行。

    Methods of using manganese chloride for improving the wetting of
particulates
    10.
    发明授权
    Methods of using manganese chloride for improving the wetting of particulates 失效
    使用氯化锰改善颗粒润湿的方法

    公开(公告)号:US5550100A

    公开(公告)日:1996-08-27

    申请号:US467379

    申请日:1995-06-06

    申请人: Yili Guo

    发明人: Yili Guo

    CPC分类号: B01F17/0007

    摘要: New and improved compositions comprising particulates and an effective amount of manganese chloride to reduce significantly the wetting time and/or the dispersion time of said particulates relative to said time(s) in the absence of said salt(s) have been discovered. Methods for reducing the wetting time of particulates in liquid have also been discovered.

    摘要翻译: 已经发现了新的和改进的组合物,其包含颗粒和有效量的氯化锰以显着减少在不存在所述盐的情况下相对于所述时间的所述颗粒的润湿时间和/或分散时间。 还发现了减少液体中微粒的润湿时间的方法。