| 摘要 |
<p>In the purification of impure titanium tetrachloride comprising adding an agent to said titanium tetrachloride and thereafter distilling off purified titanium tetrachloride while leaving the impurity in the distillation residue, the improvement which comprises employing as said agent at least one amine of the formula R2 R1-N ANGLE R3 in which R1 and R2 each independently is hydrogen, alkyl or alkenyl of up to 6 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, or aryl, and R3 is cycloalkyl of 5 to 7 ring carbon atoms, or aryl, or R2 together with R3 is butylene, pentylene or hexylene, in which event R1 is hydrogen, alkyl of up to 6 carbon atoms or aryl.</p> |
