公开(公告)号：US4738804A

公开(公告)日：1988-04-19

申请号：US766134

申请日：1985-08-15

申请人： Ashok Ramnaney

发明人： Ashok Ramnaney

IPC分类号： C07C303/00 ,  C07C309/28 ,  C07C143/24

CPC分类号： C07C303/42

摘要： An improved method for the direct production and recovery of oil soluble polyvalent metal sulfonates of petroleum hydrocarbons is provided wherein a hydrocarbon feed stock is sulfonated and mixed with water and a hydrocarbon solvent to form a top layer and a bottom sludge layer containing undesirable water soluble sulfonic acids and ions. The top layer is treated with a partition breaking solvent causing it to separate into three phases, a top oil phase, a middle phase containing most of the desired oil soluble sulfonic acids and a lower brine phase containing undesirable water soluble sulfonic acids and ions. The middle phase is directly treated with an oxide or hydroxide of a polyvalent metal without a prior neutralization step to produce neutral oil soluble polyvalent metal sulfonate which can readily be recovered from solution.

摘要翻译： 提供了用于石油烃的油溶性多价金属磺酸盐的直接生产和回收的改进方法，其中烃原料被磺化并与水和烃溶剂混合以形成顶层和含有不期望的水溶性磺酸盐的底部污泥层 酸和离子。 顶层用分隔剂分解溶剂处理，使其分离成三相，顶部油相，含有大部分所需油溶性磺酸的中间相和含有不希望的水溶性磺酸和离子的较低盐水相。 中间相直接用多价金属的氧化物或氢氧化物处理，而无需先前的中和步骤，以产生可容易地从溶液中回收的中性油溶性多价金属磺酸盐。