PHOSPHATE MODIFIED LANOLIN FATLIQUORS PRODUCED BY A SUSTAINED-RELEASE METHOD

摘要

The synthesis of a phosphate modified lanolin fatliquor was made using ethanolamine via lanoline amidate reaction followed by the phosphate reaction by a sustained-release method using P_2O_5 dispersed in a solvent.The phosphate reaction confirmed that the best conditions were at 75℃ for 2.5 hrs with a 3.0:1.0 molar ratio of hydroxy to P_2O_5. The result indicated that mole fraction of phosphoric acid monoester (MAP) made by the sustained-re lease method and the conversion of P_2O_5 increased by 12.3% and 5.7% respectively compared to the direct addition of P_2O_5 method. Phosphate fatliquor preparation by this method overcomes the odour problem of lanoline and is controllable. It is an eco-friendly reaction without wastage and is in accord with the demands of green production.