中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

63 records (took 0.023 seconds)

    METHOD FOR CONDITIONING ION EXCHANGERS
    4.
    发明申请
    METHOD FOR CONDITIONING ION EXCHANGERS 审中-公开
    方法离子交换剂的空调

    公开(公告)号：WO0137992A8

    公开(公告)日：2001-09-13

    申请号：PCT/EP0011352

    申请日：2000-11-16

    Applicant: BAYER AG ,  BOEDIGER MICHAEL ,  NEUMANN RAINER ,  HEYDENREICH FRIEDER ,  PREIN MICHAEL ,  FENNHOFF GERHARD ,  SCHNEGG ULRICH ,  WAGNER RUDOLF ,  WAMBACH WOLFGANG ,  KLIPPER REINHOLD

    Inventor： BOEDIGER MICHAEL ,  NEUMANN RAINER ,  HEYDENREICH FRIEDER ,  PREIN MICHAEL ,  FENNHOFF GERHARD ,  SCHNEGG ULRICH ,  WAGNER RUDOLF ,  WAMBACH WOLFGANG ,  KLIPPER REINHOLD

    IPC: C08J5/00 ,  B01J31/08 ,  B01J37/06 ,  C07B61/00 ,  C07C37/20 ,  C07C39/16 ,  B01J37/08

    CPC classification number: B01J31/08 ,  B01J37/06 ,  B01J2231/347 ,  C07C37/20 ,  C07C39/16

    Abstract: The invention relates to the conditioning and use of ion exchange resins for the production of bisphenols. The invention, in particular, relates to the conditioning of monodispersed cationic and anionic exchangers and the use thereof as catalysts, in particular, as catalysts for condensation reactions. The conditioning is characterised, in particular, in that a) water-wet mono-dispersed ion exchange resin is suspended in demineralised water, b) the mono-dispersed ion exchange resin is subjected to a discontinuous or continuous wash, with acid-free demineralised water, until a constant conductivity is achieved, c) after the last wash, the demineralised water is let off and the mono-dispersed ion exchange resin mixed with the acid-free OH-component, d) the resulting mixture is dried, in a continuously operated recycling apparatus, fitted with a distillation unit and e) finally, the suspension of mono-dispersed ion exchange resin and OH-component is transferred to a reaction flask.

    Abstract translation: 本申请涉及调节和使用离子交换剂用于生产双酚的。 本申请特别涉及单分散的阳离子和阴离子交换剂的调节和它们作为催化剂的用途，特别适用于缩合反应的催化。 该调节是特别特征在于悬浮剂a）水润湿的，在无氧的去离子水单分散离子交换），以恒定的电导率经历b相无氧软化水的不连续的或连续洗涤的单分散离子交换剂，C）在最后一次洗涤之后，VE 排出水，并将所述单分散离子交换剂混合，无氧OH组分，D），其与脱水蒸馏单元和e）最后，将悬浮液从单分散lonenaustaucher和OH成分在反应容器中传送的连续操作循环装置所获得的混合物中。

    8.
    发明专利
    未知

    公开(公告)号：DE10056193A1

    公开(公告)日：2002-05-29

    申请号：DE10056193

    申请日：2000-11-13

    Applicant: BAYER AG

    Inventor： SOEST HANS-KARL ,  KLIPPER REINHOLD ,  SCHNEGG ULLRICH ,  GLADYSCH MARTIN

    IPC: B01D15/04 ,  B01J41/04 ,  B01J41/14 ,  B01J49/00 ,  C13B20/14 ,  C13D3/14

    Abstract: Use of a mono-dispersal ion-exchanger, preferably an anionic-exchanger, to render sugar juice colorless, is new. Use of a mono-dispersal ion-exchanger, preferably an anionic-exchanger, to render sugar juice colorless .A mono-dispersal ion-exchange agent is operated as a micro-porous or gel-like or macro-porous pearl polymer. The mono-dispersal anion-exchanger is functionalized by primary or tertiary amino-groups, or quarter amino-groups or a mixture. The mono-dispersal anion exchanger consists of a networked polymer of simple ethyl unsaturated monomers. An Independent claim is also included for a process to render sugar juice colorless by using a mono-dispersal anion-exchange which is flushed into a heated glass filter tube at between 20 and 100 degrees C. The colored aqueous sugar solution is allowed to flow over the adsorbent resin bed from top to bottom or vice versa and rains from the bed with fully desalinated water, followed by regeneration of the resin.

    10.
    发明专利
    未知

    公开(公告)号：DE10020534A1

    公开(公告)日：2001-10-31

    申请号：DE10020534

    申请日：2000-04-27

    Applicant: BAYER AG

    Inventor： SCHMID CLAUDIA ,  PODSZUN WOLFGANG ,  SEIDEL RUEDIGER ,  HALLE OLAF ,  BORN RALF ,  KLIPPER REINHOLD

    IPC: B01J31/10 ,  B01J39/20 ,  C02F1/42 ,  C07C37/20 ,  C08F2/18 ,  C08F8/36 ,  C08F212/08 ,  C08F257/02 ,  C08F8/34

    Abstract: Monodisperse gel-type cation exchangers are produced by polymerizing monodisperse microencapsulated droplets of monomer mixtures comprising a specified amount of styrene, divinylbenzene and radical initiator, and sulfonating the product. Production of monodisperse gel-type cation exchangers comprises: (a) polymerizing monodisperse microencapsulated droplets of a monomer mixture 1 (MM1: 90.5-97.99 wt.% styrene, 2-7 wt.% divinylbenzene and 0.01-2.5 wt.% radical initiator) in aqueous suspension until the conversion is 76-100%; (b) adding a monomer mixture 2 (MM2: 70.5-95.99 wt.% styrene, 4-15 wt.% divinylbenzene, 0-12 wt.% of a third comonomer and 0.01-2.5 wt.% radical initiator) such that 50-100 wt.% of MM2 is added under polymerization conditions in which the radical initiator of MM2 is active; and (c) sulfonating the product. Independent claims are also included for the following: (1) a cation exchanger in H form obtainable by the above process; (2) a cation exchanger obtained by loading the cation exchanger of (1) with a 10-60 wt.% sodium hydroxide solution.

Patent Agency Ranking