Asphalt Dispersers On The Basis Of Phosphonic Acids
    2.
    发明申请
    Asphalt Dispersers On The Basis Of Phosphonic Acids 审中-公开
    沥青分散剂在磷酸的基础上

    公开(公告)号:US20110098507A1

    公开(公告)日:2011-04-28

    申请号:US12747693

    申请日:2008-12-03

    IPC分类号: C07F9/38 C07C7/20

    CPC分类号: C09K8/524 C07F9/3808

    摘要: The object of the invention is the use of phosphonic acids of the formula (4), where R2 is H or C1-C500-alkyl, and R3 and R4 independently from each other are H or C1-C500-alkyl, with the proviso that not all groups R2, R3, R4 are hydrogen, and having a molecular weight from 250 to 10,000 units, in quantities from 0.5 to 10,000 ppm with respect to the oil, for the dispersion of asphaltenes in asphalt-containing crude oils or residual oils.

    摘要翻译: 本发明的目的是使用式(4)的膦酸,其中R2是H或C1-C500-烷基,R3和R4彼此独立地是H或C1-C500-烷基,条件是 并不是所有的基团R2,R3,R4都是氢,分子量为250至10,000个单位,相对于油为0.5至10,000ppm,用于在含沥青的原油或残油中分散沥青质。

    Polymers and Their Production and Use as Gas Hydrate Inhibitors
    10.
    发明申请
    Polymers and Their Production and Use as Gas Hydrate Inhibitors 有权
    聚合物及其生产和使用作为气体水合物抑制剂

    公开(公告)号:US20080113878A1

    公开(公告)日:2008-05-15

    申请号:US11884223

    申请日:2006-02-01

    IPC分类号: C09K8/52 C08G69/08

    摘要: The invention relates to polymers with a mean molecular weight of between 500 and 500,000 g/mol that can be produced as follows: A) reaction of a compound of formula 1, in which n stands for 0, 1 or 2 and A for an arbitrarily substituted C1-C40 group with a compound of the formula 2 B(OH)m in which m is from 2 to 10 and B is a represents an arbitrarily substituted C2-C40 group, B) subsequently reaction of the product thus obtained with a nitrogen-containing carboxylic acid which comprises from 1 to 20 carbon atoms, where the molar ratio between the number of free OH groups of the polyester obtained in step A and the nitrogen-containing carboxylic acid is between 1:0.1 and 1:1. The polymers are used to inhibit gas hydrate formation.

    摘要翻译: 本发明涉及平均分子量为500至500,000g / mol的聚合物,其可以如下制备:A)式1化合物与其中n代表0,1或2的化合物反应,A任意地反应 取代的C 1 -C 40基团与式2 B(OH)m的化合物反应,其中m为2至10,B 是代表任意取代的C 2 -C 40基团,B)随后将由此获得的产物与含有1至20个碳的含氮羧酸反应 原子,其中在步骤A中获得的聚酯的游离OH基团与含氮羧酸之间的摩尔比在1:0.1至1:1之间。 聚合物用于抑制气体水合物的形成。