The invention discloses a method for preparing oil-acyl
lysine sodium and a composition comprising the surfactant through phase-transfer
catalysis, belonging to the technical field of
fine chemical engineering. According to the technology for synthesizing an oil-acyl
lysine sodium type surfactant provided by the invention, oil and
lysine sodium are reacted to generate the oil-acyl lysine sodium in the presence of phase-transfer catalysts PEG8000. The method is high in yield and high in
raw material utilization rate, the phase-transfer catalysts PEG8000 refer to matrix raw materials and active ingredients of detergents,
cosmetics and medicines and has the effects of regulating the
viscosity, stabilizing and moisturizing, the product does not need to be separated and purified and can be directly used, the product is a composition of acyl lysine sodium homolog of different carbon chains, the surfactant combination principle is met, the synergistic effect can be achieved, the content of active matters is high, the surface activity is high, the synthetic
route is simple, the pollutants are avoided, and the method is an environment-friendly synthetic method. The invention also discloses a surfactant composition comprising the oil-acyl lysine sodium.