| abstract |
The present invention relates to a process for the preparation of phosphoric acid tris (2-chloro (iso) propyl) ester by reacting phosphorus oxychloride and propylene oxide in the end product as a solvent, using phosphorus oxychloride and propylene oxide in a molar ratio of 1.00: 3.09 to 3 , 25 at 80-95 ° C in the presence of 1.7 to 2.8 . 10⁻³ mol of titanium tetrachloride is continuously reacted and the subsequent treatment is carried out by successive treatment with acid, optionally water, with alkali, water washing, optionally steam distillation and drying. |