发明公开
EP1265685A2 SEPARATING AN EMULSION INTO AN AQUEOUS PHASE CONTAINING A REUSABLE ANIONIC SURFACTANT 审中-公开
乳液到可重复使用的阴离子表面活性剂含水相分离

SEPARATING AN EMULSION INTO AN AQUEOUS PHASE CONTAINING A REUSABLE ANIONIC SURFACTANT
摘要:
A process for separating a hydrophobic hydrocarbon chemical from an aqueous emulsion and recycling the majority of the water, co-solvents, salts, and the emulsifier is set forth. A preferred emulsifier is a salt of a carboxylic acid, phosphoric acid or sulfonic acid having an amine in the hydrophobic portion of the emulsifier, said amine being capable of being protonated to change (increase) the water solubility of the entire emulsifier molecule. The process is useful for soil remediation by extraction in that it facilitates the recycling of the water and emulsifier dramatically reducing the amount of water and emulsifier used in remediating a site. A method for remediating contaminated soil using the process is also set forth.
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