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    MECHANISCH STABILER KATALYSATOR AUF BASIS VON ALPHA-ALUMINIUMOXID
    12.
    发明公开
    MECHANISCH STABILER KATALYSATOR AUF BASIS VON ALPHA-ALUMINIUMOXID 审中-公开
    机械稳定的催化剂基于α-氧化铝

    公开(公告)号：EP1919611A1

    公开(公告)日：2008-05-14

    申请号：EP06792946.3

    申请日：2006-08-22

    Applicant: BASF SE

    Inventor： SCHUBERT, Olga ,  SESING, Martin ,  SEIDEMANN, Lothar ,  KARCHES, Martin ,  GRASSLER, Thomas ,  SOHN, Martin

    IPC: B01J21/04 ,  B01J23/46 ,  C01B7/04

    CPC classification number: C01B7/04 ,  B01J21/04 ,  B01J23/462 ,  B01J23/52 ,  B01J23/72 ,  B01J23/8926

    Abstract: Disclosed is a catalyst for gas phase reactions, which is provided with great mechanical stability and comprises one or several active metals on a carrier containing alumina as a carrier material. Said catalyst is characterized in that the alumina moiety of the carrier is composed substantially of alpha-alumina. Ruthenium, copper, and/or gold is/are the preferred active metal/s used. Particularly preferred inventive catalysts contain a) 0.001 to 10 percent by weight of ruthenium, copper, and/or gold, b) 0 to 5 percent by weight of one or several alkaline earth metals, c) 0 to 5 percent by weight of one or several alkali metals, d) 0 to 10 percent by weight of one or several rare earth metals, e) 0 to 10 percent by weight of one or several other metals selected among the group comprising palladium, platinum, osmium, iridium, silver, and rhenium, the percentages being in relation to the total weight of the catalyst, on the carrier made of alpha Al2O3. The disclosed catalysts are preferably used for the oxidation of hydrogen chloride (Deacon reaction).

    VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS HCI
    16.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS HCI 有权
    用于生产氯FROM HCI

    公开(公告)号：EP2445831A1

    公开(公告)日：2012-05-02

    申请号：EP10725697.6

    申请日：2010-06-17

    Applicant: BASF SE

    Inventor： KARCHES, Martin ,  BACHMANN, Kati ,  SESING, Martin ,  SEIDEMANN, Lothar ,  JACOBSEN, Knud

    IPC: C01B7/04

    CPC classification number: C01B7/04

    Abstract: The invention relates to a method for producing chlorine by the oxidation of hydrogen chloride with oxygen in a fluidized bed reactor in the presence of a particulate catalyst, the reaction heat produced by the exothermic hydrogen chloride oxidation being carried away by water which circulates in the tubes of a shell-and-tube heat exchanger. The method comprises the following steps: (i) heating the fluidized bed reactor to an operating temperature in the range of 350 to 420°C in a heating phase and (ii) reacting the hydrogen chloride with oxygen at the operating temperature in an operating phase. The method is characterized in that (i-1) the fluidized bed reactor is heated to a temperature below the operating temperature in a first heating phase, and (i-2) hydrogen chloride and oxygen are fed to the fluidized bed reactor and reacted in a second heating phase, the fluidized bed reactor being heated to the operating temperature by the reaction heat produced by the exothermic hydrogen chloride oxidation.

    VERFAHREN ZUR HERSTELLUNG VON CHLOR
    17.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON CHLOR 有权
    用于生产氯

    公开(公告)号：EP1866239B1

    公开(公告)日：2012-01-18

    申请号：EP06743192.4

    申请日：2006-02-20

    Applicant: BASF SE

    Inventor： SESING, Martin ,  DIEFENBACHER, Armin ,  VOSS, Hartwig ,  SCHUBERT, Olga ,  SEIDEMANN, Lothar ,  KARCHES, Martin ,  GRASSLER, Thomas ,  STROEFER, Eckhard

    IPC: C01B7/04

    CPC classification number: C01B7/075 ,  C01B7/04 ,  C01B7/0743

    Abstract: The invention concerns a method for producing chlorine and a hydrochloric gas including the following steps: a) supplying via a stream containing hydrochloric gas (a1) and a stream containing oxygen (a2) an oxidation zone and a hydrochloric gas catalytic oxidation with chlorine, a stream of gaseous product (a3) containing chlorine, water, oxygen, carbon dioxide, and the inert gases obtained; b) cooling the stream of gaseous products (a3) and separating the water from the hydrochloric gas in the form of hydrochloric acid, a gas stream (b) containing chlorine, water, oxygen, carbon dioxide, and the inert gases still remaining; c) optionally drying the gas stream (b), and obtaining a gas stream (c) substantially water-free, containing chlorine, oxygen, carbon dioxide and inert gases; d) liquefying at least partly the gas stream (c) and a return stream (f1) rich in chlorine, containing chlorine, oxygen, carbon dioxide through thickening and cooling, a partly liquefied stream (d) being preserved; e) gas-liquid separation of the stream (d) into a gas stream (e1) containing chlorine, oxygen, carbon dioxide, and inert gases and into a liquid stream (e2) containing chlorine, oxygen, and carbon dioxide; f) introducing at least part of the gas stream (e1) into a unit with membrane and separating a return stream (f1) rich in chlorine and a gas flow (f2) poor in chlorine, containing chlorine, oxygen, carbon dioxide, via a separation by the membrane and reintroducing the return flux (f1) rich in chlorine in step d); g) separating the liquid stream (e2) by distillation into a stream of chlorine (g1) and a stream (g2) comprising substantially oxygen and carbon dioxide.

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