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Ethoxylated sulfosuccinate additives for stabilizing solutions of petroleum sulfonates in hard brine
Ethoxylated sulfosuccinate additives for stabilizing solutions of petroleum sulfonates in hard brine
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机译:乙氧基磺基琥珀酸酯添加剂,用于稳定硬盐水中的石油磺酸盐溶液
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摘要
Ethoxylated sulfosuccinate derivatives, e.g., diesters and half-esters of alpha-sulfosuccinic acid and ethoxylated alcohols are added as phase stabilizing agents to aqueous saline solutions of petroleum sulfonates to substantially prevent or to eliminate phase separation and/or precipitation of surfactant and/or cosurfactant in such solutions on contacting them with hard brines containing high concentrations of divalent ions such as CA.sup.++ and Mg.sup.++.
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