Composition and process of elaboration of non-hydrolyzable surfactants from vegetable oils

A chemical synthesis process to obtain non-hydrolyzable surfactants comprising the following steps:

• a) vegetable oils are treated with dry ammonia dissolved in methanol and NaCN as a catalyst for the formation of the amide mixtures of the corresponding fatty acids;
• b) the amides, from the previous stage, are treated with anhydrous tetrahydrofuran (TFH), sodium borohydride (NaBH4) and acetic acid, kept stirring for 20 min at room temperature;
• a THF/AcOH (4:1) mixture is added. The mixture is brought to reflux, the pH is adjusted between 1 and 2 and K2CO3 is added to obtain the alkylamine mixture;
• c) the alkylamines, from the previous stage, are treated with formic acid to generate ammonium formates, formaldehyde is added, it is allowed to react at 70° C. until the reaction is complete, a saturated NaHCO3 solution is added until a pH of 8 is obtained, and
• d) The product from the previous stage is treated with sodium chloroacetate and methanol at a pressure of 20 psi for 30 min, the pressure is released and it is heated at 110° C. for 6 hrs. to generate amphoteric non-hydrolyzable surfactants.