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    • 4. 发明公开
    • Salts of dicyclopentadiene sulfonate and method of preparing
    • Salze von Dicyclopentadiensulfonaten sowie Verfahren zu deren Herstellung。
    • EP0161360A1
    • 1985-11-21
    • EP84303275.6
    • 1984-05-15
    • TEXACO DEVELOPMENT CORPORATION
    • Naylor, Carter Graham
    • C07C143/22C07C145/00C07C139/12
    • C07C309/25Y10S507/936
    • Sulfonate and/or sulfonate-sulfinate salts of dicyclopentadiene, having for instance, the formula
      wherein D is a dicyclopentadiene moiety, M is an alkali metal, alkaline earth metal, amine or ammonium cation, X is 1 or 2, and y is 0, 1 or 2, provided that y is equal to or less than x, are obtainable by

      (a) mixing dicylcopentadiene with an alkanol, water and an alkali metal hydroxide or ammonium hydroxide, and
      (b) mixing bisulfite with the reaction mixture at elevated temperature.

      The proportions of sulfonate and sulfinate groups in the product can be varied by adjusting the pH during preparation of the products which are usable in enhanced oil recovery and corrosion control.
    • 具有例如式... DHx(SO3M)x(SO2M)y的二环戊二烯的磺酸盐和/或磺酸盐 - 亚磺酸盐,其中D是二环戊二烯部分,M是碱金属,碱土金属,胺或铵阳离子 X为1或2,y为0,1或2,条件是y等于或小于x,可通过以下方式得到:(a)将二辛基二烯与链烷醇,水和碱金属氢氧化物或氢氧化铵混合, 和(b)在升高的温度下将亚硫酸氢盐与反应混合物混合。 ...产品中磺酸盐和亚磺酸根基团的比例可以通过在可用于提高采油和腐蚀控制的产品的制备过程中调节pH来改变。