Mixture containing fatty acid ethyl ester sulfonate and preparation method thereof

The invention relates to a mixture with aliphatic acid carbethoxy sulfonate salt, and relative production, wherein said mixture comprises 90-98 deals of aliphatic acid sulfonate salt, 1-4 deals of aliphatic acid sulfonate salt, 0.5-4 deals of sulfate, 0.1-2 deals of fatty acid ester, 0.3-3 deals of ethylsulfuric acid salt, and 1-50 deals of water. The production comprises that: 1, sulfonating the fatty acid ester and sulfur trioxide at 1:1-1:1. 1 mol ratios; 2, adding alcohol into mixture to be aged; 3, adding auricome into mixture to poach; 4, adding extractive into the mixture to extract; 5, adding alkali metal mixture into mixture to be neutralized to obtain the mixture. The inventive production is safe while the product purity is higher than 90%.