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    • 47. 发明申请
    • METHODS OF RECOVERING RARE EARTH ELEMENTS
    • 恢复稀土元素的方法
    • US20140072509A1
    • 2014-03-13
    • US14081879
    • 2013-11-15
    • Albert A. Vierheilig
    • Albert A. Vierheilig
    • B01J29/06
    • B01J29/06B01J20/186B01J20/3408B01J20/345B01J29/061B01J29/90B01J38/02B01J38/60B01J38/68C01F17/00C01F17/0006C22B7/006C22B59/00Y02P10/234Y02P10/236Y02P20/584
    • Processes described include reacting a fresh or spent catalyst, or sorbent, with a solution containing an extracting agent (such as an acid or a base). Preferably, the catalyst contains both alumina and a molecular sieve (or a sorbent), and the reaction is performed under relatively mild conditions such that the majority of the base material does not dissolve into the solution. Thus, the catalyst can be re-used, and in certain instances the catalyst performance even improves, with or without re-incorporating certain of the metals back into the catalyst. Additionally, metals contained in the catalyst, such as Na, Mg, Al, P, S, Cl, K, Ca, V, Fe, Ni, Cu, Zn, Sr, Zn Sb, Ba, La, Ce, Pr, Nd, Pb, or their equivalent oxides, can be removed from the catalyst. Some of the metals that are removed are relatively valuable (such as the rare earth elements of La, Ce, Pr and Nd).
    • 所述方法包括使新鲜或废催化剂或吸附剂与含有萃取剂(例如酸或碱)的溶液反应。 优选地,催化剂含有氧化铝和分子筛(或吸附剂),反应在相对温和的条件下进行,使得大部分基材不溶解于溶液中。 因此,可以重新使用催化剂,并且在某些情况下催化剂性能甚至改善,有或没有将某些金属重新引入催化剂。 另外,催化剂中所含的金属如Na,Mg,Al,P,S,Cl,K,Ca,V,Fe,Ni,Cu,Zn,Sr,Zn Sb,Ba,La,Ce,Pr,Nd ,Pb或其等价氧化物可以从催化剂中除去。 被去除的一些金属是相对有价值的(例如La,Ce,Pr和Nd的稀土元素)。
    • 49. 发明授权
    • Methods of recovering rare earth elements
    • 回收稀土元素的方法
    • US08263028B1
    • 2012-09-11
    • US13270023
    • 2011-10-10
    • Albert A. Vierheilig
    • Albert A. Vierheilig
    • C01G17/00
    • B01J29/06B01J20/186B01J20/3408B01J20/345B01J29/061B01J29/90B01J38/02B01J38/60B01J38/68C01F17/00C01F17/0006C22B7/006C22B59/00Y02P10/234Y02P10/236Y02P20/584
    • Processes described include reacting a fresh or spent catalyst, or sorbent, with a solution containing an extracting agent (such as an acid or a base). Preferably, the catalyst contains both alumina and a molecular sieve (or a sorbent), and the reaction is performed under relatively mild conditions such that the majority of the base material does not dissolve into the solution. Thus, the catalyst can be re-used, and in certain instances the catalyst performance even improves, with or without re-incorporating certain of the metals back into the catalyst. Additionally, metals contained in the catalyst, such as Na, Mg, Al, P, S, Cl, K, Ca, V, Fe, Ni, Cu, Zn, Sr, Zn Sb, Ba, La, Ce, Pr, Nd, Pb, or their equivalent oxides, can be removed from the catalyst. Some of the metals that are removed are relatively valuable (such as the rare earth elements of La, Ce, Pr and Nd).
    • 所述方法包括使新鲜或废催化剂或吸附剂与含有萃取剂(例如酸或碱)的溶液反应。 优选地,催化剂含有氧化铝和分子筛(或吸附剂),反应在相对温和的条件下进行,使得大部分基材不溶解于溶液中。 因此,可以重新使用催化剂,并且在某些情况下催化剂性能甚至改善,有或没有将某些金属重新引入催化剂。 另外,催化剂中所含的金属如Na,Mg,Al,P,S,Cl,K,Ca,V,Fe,Ni,Cu,Zn,Sr,Zn Sb,Ba,La,Ce,Pr,Nd ,Pb或其等价氧化物可以从催化剂中除去。 被去除的一些金属是相对有价值的(例如La,Ce,Pr和Nd的稀土元素)。
    • 50. 发明授权
    • Injection of liquid sorbent conditioning into a sorbent transporting passageway
    • 将液体吸附剂调理剂注入吸附剂输送通道
    • US08148284B2
    • 2012-04-03
    • US12028991
    • 2008-02-11
    • James F. DurantDavid J. MattesonKurt W. Johnson
    • James F. DurantDavid J. MattesonKurt W. Johnson
    • B01D15/00
    • B01F3/1228B01D53/508B01D2251/404B01D2251/606B01F5/045B01F5/0463B01J20/043B01J20/3433B01J20/345Y10T137/0318Y10T137/87652
    • A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a solution to treat the sorbent. More particularly, the conveying line (105) includes an inlet (107), an outlet (109), and an inner surface (105a) that is operative to define a passageway (190) through which sorbent particles are capable of being transported between the inlet (107) of the conveying line (105) and the outlet (109) of the conveying line (105). Each of the plurality of solution nozzles includes a respective one of a plurality of orifices (120) that are designed to be disposed circumferentially about the inner surface (105a) of the conveying line (105) and that are designed to be operative to effect therewith the injection of an aqueous solution of a liquid sorbent conditioner into the passageway (190) in order to thereby effect therewith the pretreatment of sorbent particles that are being transported through the passageway (190) in the conveying line (105).
    • 用于通过吸附剂进行预处理的系统包括诸如管道的输送管线(105)和用于引入溶液以处理吸附剂的多个溶液喷嘴。 更具体地,输送管线(105)包括入口(107),出口(109)和内表面(105a),内表面(105a)可操作以限定通道(190),吸附剂颗粒能够通过该通道 输送管线(105)的入口(107)和输送管线(105)的出口(109)。 多个溶液喷嘴中的每一个包括多个孔口(120)中的相应一个,其设计成围绕输送管线(105)的内表面(105a)周向设置,并且被设计成可操作地与其一起实现 将液体吸附剂调理剂的水溶液注入到通道(190)中,从而由此对通过输送管线(105)中的通道(190)输送的吸附剂颗粒进行预处理。