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    Corrosion inhibition
    1.
    发明授权
    Corrosion inhibition 有权
    腐蚀抑制

    公开(公告)号：US6077460A

    公开(公告)日：2000-06-20

    申请号：US229800

    申请日：1999-01-13

    申请人： Knut Oppenlander ,  Gunter Oetter ,  Rudi Kroner ,  Norbert Mahr ,  Hans-Jurgen Jatzek ,  Klaus Taeger

    发明人： Knut Oppenlander ,  Gunter Oetter ,  Rudi Kroner ,  Norbert Mahr ,  Hans-Jurgen Jatzek ,  Klaus Taeger

    IPC分类号： C23F11/14 ,  C09K3/00 ,  C04B9/02 ,  C23F11/00

    CPC分类号： C23F11/149

    摘要： The invention relates to the use of at least one compound of general formula (I), ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R.sub.4 represents an alkyl or alkenyl radical, and n represents 1 to 5; or of an acid addition salt thereof, as an inhibitor of corrosion in the extraction, processing, storage and transportation of crude oil and natural gas, and to a process for the preparation of this compound.

    摘要翻译： 本发明涉及至少一种通式（I）化合物的用途，其中R 1，R 2和R 3彼此独立地表示氢原子或烷基或烯基; R4表示烷基或烯基，n表示1〜5; 或其酸加成盐作为原油和天然气的提取，加工，储存和运输中的腐蚀抑制剂，以及制备该化合物的方法。

    Alcohol alkoxylates used as low-foam, or foam inhibiting surfactants
    3.
    发明授权
    Alcohol alkoxylates used as low-foam, or foam inhibiting surfactants 有权
    用作低泡沫或泡沫抑制表面活性剂的醇烷氧基化物

    公开(公告)号：US06680412B2

    公开(公告)日：2004-01-20

    申请号：US10239884

    申请日：2002-10-07

    申请人： Helmut Gümbel ,  Martin aus dem Kahmen ,  Norbert Wagner ,  Klaus Taeger

    发明人： Helmut Gümbel ,  Martin aus dem Kahmen ,  Norbert Wagner ,  Klaus Taeger

    IPC分类号： C07C4100

    CPC分类号： C08G65/2609 ,  C11D1/722 ,  C11D3/0026

    摘要： Alcohol alkoxylates of the formula (I) R1—O—(CH2—CHR5—O—)r(CH2—CH2—O—)n(CH2—CHR6—O—)s(CH2—CHR2—O—)mH  (I) where R1 is an at least singly branched C4-22-alkyl R2 is C3-4-alkyl R5 is C1-4-alkyl R6 is methyl or ethyl n is an average value from 1 to 50 m is an average value from 0 to 20 r is an average value from 0 to 50 s is an average value from 0 to 50, where m is at least 0.5 if R5 is methyl or ethyl or r is 0, or alcohol alkoxylates of the formula (II) R3—O—(CH2—CH2—O—)p(CH2—CHR4—O—)qH  (II) where R3 is branched or unbranched C4-22-alkyl R4 is C3-4-alkyl p is an average value of from 1 to 50 q is an average value of from 0.5 to 20 are used as low-foam or foam-suppressing surfactants.

    摘要翻译： 式（I）的醇烷氧基化物，其中R 1是至少单支链的C 4-20 - 烷基R 2是C 4-8 - 烷基R 5是C 1-4 - 烷基R 6是甲基或乙基是 1〜50μm的平均值为0〜20r的平均值为0〜50的平均值为0〜50的平均值，如果R 5为甲基或乙基或r为0，则m为0.5以上 或式（II）的醇烷氧基化物，其中R 3为支链或非支链C4-22-烷基R4为C3-4-烷基，平均值为1〜50q的平均值为0.5〜20重量％ 用作低泡沫或泡沫抑制表面活性剂。