VERFAHREN ZUR HERSTELLUNG VON ALKOXYLIERTEN CARBONYLVERBINDUNGEN DURCH EIN ANODISCHES OXIDATIONSVERFAHREN UNTER NUTZUNG DER KATHODISCHEN KOPPELREAKTION ZUR ORGANISCHEN SYNTHESE
    2.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ALKOXYLIERTEN CARBONYLVERBINDUNGEN DURCH EIN ANODISCHES OXIDATIONSVERFAHREN UNTER NUTZUNG DER KATHODISCHEN KOPPELREAKTION ZUR ORGANISCHEN SYNTHESE 有权
    PROCESS FOR烷氧基化由阳极氧化法UNDER阴极KOPPEL反应在有机合成中使用的制备羰基

    公开(公告)号:EP1348043A2

    公开(公告)日:2003-10-01

    申请号:EP01994702.7

    申请日:2001-11-22

    IPC分类号: C25B3/00

    CPC分类号: C25B3/00

    摘要: A method for producing alcoxylated carbonyl compounds of general formula (I) (compounds I): R1aR2C(OR3)b wherein R1, R2 represent hydrogen or C¿1?- C6-alkyl, R?3¿ independently means C¿1?- C6-alkyl, a is 0 or 1, b 2 or 3 with the proviso that the sum of a and b is 3, by means of anodic oxidation of germinal dialcoxy compounds of general formula (II) (compounds II) wherein R?4, R5, R6, R7¿ represent hydrogen or C¿1?- C6-alkyl, R?5, R6¿ represent C¿1?- C6-alkyl or C1- C6-alcoxy, in the presence of a C1-C6-alkyl alcohol (compounds III).A usual compound (compound IV) is used as a cathodic depolarizer suitable for electrochemical oxidation. The anodic oxidation and cathodic reduction is carried out in an undivided electrolyte cell in the presence of C1-C6-alkyl alcohols.

    VERFAHREN UND VORRICHTUNG ZUM ENTIONISIEREN VON KÜHLMEDIEN FÜR BRENNSTOFFZELLEN
    5.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUM ENTIONISIEREN VON KÜHLMEDIEN FÜR BRENNSTOFFZELLEN 有权
    方法和设备去离子冷却媒体燃料电池

    公开(公告)号:EP1407506A2

    公开(公告)日:2004-04-14

    申请号:EP02716714.7

    申请日:2002-02-01

    IPC分类号: H01M8/04

    CPC分类号: H01M8/04029

    摘要: The invention relates to a method for deionising a cooling medium of a fuel cell (11), said cooling medium circulating in a cooling circuit (20). Said cooling medium is at least intermittently, but preferably continuously, electrochemically deionised. To this end, at least one electrodeionisation cell (23) is arranged in the cooling circuit, a concentrate flow (28) and a diluate flow (27) used as a cooling medium passing through said cell. The concentrate flow (28) can be part of a secondary cooling circuit.

    VERFAHREN ZUR HERSTELLUNG VON ORTHOCARBONSÄURETRIALKYLESTERN
    7.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON ORTHOCARBONSÄURETRIALKYLESTERN 有权
    用于生产ORTHOCARBONSÄURETRIALKYLESTERN

    公开(公告)号:EP1362022B1

    公开(公告)日:2007-11-28

    申请号:EP01980340.2

    申请日:2001-09-05

    IPC分类号: C07C43/32 C25B3/02

    CPC分类号: C25B3/02

    摘要: The invention relates to a method for producing orthocarbonic acid trialkyl esters by electrochemical oxidation of alpha-beta-diketones or alpha-beta-hydroxy ketones in the presence of C1-to C4-alcohols (alcohol A), the keto function being present in the form of a ketal function derived from C1- to C4-alykl alcohols and the hydroxyl function being optionally in the form of an ether function derived from C1- to C4-alykl alcohols (ketal K). The molar ratio of the ketal K to the alcohols A in the electrolytes is 0.2:1 to 10:1.

    VERFAHREN UND VORRICHTUNG ZUM ENTIONISIEREN VON KÜHLMEDIEN FÜR BRENNSTOFFZELLEN
    8.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUM ENTIONISIEREN VON KÜHLMEDIEN FÜR BRENNSTOFFZELLEN 有权
    方法和设备去离子冷却媒体燃料电池

    公开(公告)号:EP1407506B1

    公开(公告)日:2006-04-26

    申请号:EP02716714.7

    申请日:2002-02-01

    IPC分类号: H01M8/04

    CPC分类号: H01M8/04029

    摘要: The invention relates to a method for deionising a cooling medium of a fuel cell (11), said cooling medium circulating in a cooling circuit (20). Said cooling medium is at least intermittently, but preferably continuously, electrochemically deionised. To this end, at least one electrodeionisation cell (23) is arranged in the cooling circuit, a concentrate flow (28) and a diluate flow (27) used as a cooling medium passing through said cell. The concentrate flow (28) can be part of a secondary cooling circuit.

    VERFAHREN ZUR HERSTELLUNG VON ORTHOCARBONSÄURETRIALKYLESTERN
    9.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON ORTHOCARBONSÄURETRIALKYLESTERN 有权
    VERFAHREN ZUR HERSTELLUNG VONORTHOCARBONSÄURETRIALKYLESTERN

    公开(公告)号:EP1430165B1

    公开(公告)日:2005-06-08

    申请号:EP02776994.2

    申请日:2002-09-05

    IPC分类号: C25B3/00

    CPC分类号: C25B3/02

    摘要: The invention relates to a method for producing orthoesters of general formula I, in which the radicals are defined as follows: R : hydrogen, C1 to C20 alkyl, C2 to C20 alkenyl, C2 to C20 alkinyl, C3 to C12 cycloalkyl, C4 to C20 cycloalkyl alkyl or C4 to C10 aryl, R2 and R3: C1 to C20 alkyl, C3 to C12 cycloalkyl and C4 to C20 cycloalkyl alkyl, or R and R together form C2 to C10 alkylene, R : C1 to C4 alkyl. According to the invention, a compound of general formula II is electrochemically oxidised in the presence of C1 to C4 alcohols (alcohols A). In said formula, the radicals R to R have the same definition as in the general formula I and R represents a saturated or unsaturated 5 or 6 membered heterocycloalkyl radical or heterocycloaryl radical comprising up to 2 heteroatoms, selected from the group containing N, O and S, said radical being bonded to the residual part of the molecule by a carbon atom, which is in a vicinal position in relation to a heteroatom.

    摘要翻译: 本发明涉及通式I的原酸酯的制备方法,其中基团定义如下:R 1:氢,C 1 -C 20烷基,C 2 -C 20烯基,C 2 -C 20炔基,C 3 -C 12环烷基, C4至C20环烷基烷基或C4至C10芳基,R2和R3:C1至C20烷基,C3至C12环烷基和C4至C20环烷基烷基,或者R 2和R 3一起形成C 2至C 10亚烷基, C4:C1-C4烷基。 根据本发明,通式II的化合物在C1-C4醇(醇A)存在下电化学氧化。 在所述式中,基团R 1至R 3具有与通式I中相同的定义,并且R 5表示包含至多2个杂原子的饱和或不饱和的5或6元杂环烷基或杂环芳基, 选自含有N,O和S的基团,所述基团通过与杂原子相邻的碳原子与分子的残余部分键合。