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5 条记录 (耗时 0.018 秒)

    Synergistic mixtures of phosphoric esters with carboxylic acids or carboxylic acid derivatives as asphaltene dispersants
    3.
    发明授权
    Synergistic mixtures of phosphoric esters with carboxylic acids or carboxylic acid derivatives as asphaltene dispersants 失效
    磷酸酯与羧酸或羧酸衍生物作为沥青分散剂的协同混合物

    公开(公告)号：US06204420B1

    公开(公告)日：2001-03-20

    申请号：US09338966

    申请日：1999-06-24

    申请人： Dennis Miller ,  Axel Vollmer ,  Michael Feustel ,  Peter Klug

    发明人： Dennis Miller ,  Axel Vollmer ,  Michael Feustel ,  Peter Klug

    IPC分类号： C07C720

    CPC分类号： C09K8/524 ,  Y10S507/929

    摘要： The invention relates to a synergistic mixture of A from 5 to 99% by weight of a carboxylic acid having more than 4 carbon atoms, an ethercarboxylic acid containing C18-C22-alkyl, C18-C22-alkenyl or C6-C18-alkylaryl substituents, an amidocarboxylic acid, or mixtures thereof, B from 1 to 95% by weight of a phosphoric mono- or diester, or mixtures thereof, which is substituted by C18-C22-alkyl, C18-C22-alkenyl, C6-C18-alkylaryl or alkoxylated groups, where the sum of components A and B is 100% by weight, to crude oils containing such mixtures, and to a process for dispersing asphaltenes in crude oils.

    摘要翻译： 本发明涉及5至99重量％的具有多于4个碳原子的羧酸，含有C 18 -C 22 - 烷基，C 18 -C 22 - 烯基或C 6 -C 18 - 烷芳基取代基的醚羧酸的协同混合物， 酰胺基羧酸或其混合物，B为1至95重量％的磷酸单酯或二酯或其混合物，其被C 18 -C 22 - 烷基，C 18 -C 22 - 烯基，C 6 -C 18 - 烷基芳基或烷氧基化 组分A和B的总和为100重量％的组合，含有这种混合物的原油，以及将沥青质分散在原油中的方法。

    Use of alkanesulfonic acids as asphaltene-dispersing agents
    5.
    发明授权
    Use of alkanesulfonic acids as asphaltene-dispersing agents 失效
    使用烷烃磺酸作为沥青分散剂

    公开(公告)号：US5925233A

    公开(公告)日：1999-07-20

    申请号：US950033

    申请日：1997-10-14

    申请人： Dennis Miller ,  Axel Vollmer ,  Michael Feustel

    发明人： Dennis Miller ,  Axel Vollmer ,  Michael Feustel

    IPC分类号： E21B37/06 ,  B01F17/02 ,  C09K8/524 ,  C10G75/04 ,  C10L1/24 ,  C10L10/18 ,  C07C7/20

    CPC分类号： C10G75/04 ,  C09K8/524

    摘要： The present invention relates to the use of secondary alkanesulphonic acids as asphaltene dispersing agent in crude oils and products derived therefrom, wherein a chain length of 8 to 22 C atoms is present. The secondary alkanesulfonic acids are employed in an amount of from 1 to 10,000 ppm by volume. The alkanesulfonic acid is preferably formulated as a solution or microemulsion, and can further contain optional alkyl-formaldehyde resin, oxyalkylated amines, or wax-dispersing agents. The alkanesulfonic acids provide reduced precipitate amounts, slow the rate of precipitate formation, form a more finely divided precipitate and reduce the tendency of the precipitate to be deposited on surfaces.

    摘要翻译： 本发明涉及仲烷基磺酸作为沥青质分散剂在原油中的用途及其衍生产物，其中存在8至22个C原子的链长度。 仲烷烃磺酸的用量为1至10,000ppm（体积）。 烷基磺酸优选配制成溶液或微乳液，并且还可以含有任选的烷基 - 甲醛树脂，烷氧基化胺或蜡分散剂。 烷烃磺酸提供减少的沉淀量，减缓沉淀物形成速率，形成更细的沉淀物并降低沉淀物沉积在表面上的趋势。