Process for the purification and activation of titanium trichloride

Claim 1

IN A PROCESS FOR PURIFYING ACTIVATING AND IMPROVING THE CATALYTIC PROPERTIES OF TITANIUM TRICHLORIDE WHICH HAS BEEN PRODUCED BY THE REDUCTION OF TITANIUM TETRACHLORIDE WITH HYDROGEN AND IS CONTAMINATED WITH TITANIUM TETRACHLORIDE AND WHICH HAS BEEN WASHED WITH AN INERT HYDROCARBON, THE IMPROVEMENT WHICH COMPRISES: HEATING SAID TITANIUM TRICHLORIDE AT A TEMPERATURE NOT EXCEEDING 100* C. IN THE PRESENCE OF A HOMOGENEOUS ALCOHOL-INERT HYDROCARBON MIXTURE CONTAINING AT LEAST 0.01 MOL PERCENT ALCOHOL BUT IN THE ABSENCE OF OLEFIN, THE AMOUNT OF ALCOHOL IN THE REACTION MIXTURE BEING FRMO 0.2 TO 50 MOL PERCENT BASED ON THE QUANTITY OF TITANIUM TRICHLORIDE, SAID ALCOHOL BEING SELECTED FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, PROPANOL, 1-BUTANOL, 2-METHYL-1-PROPANOL, 2BUTANOL, 2-METHYL-2-PROPANOL, 1-PENTANOL, 3-METHYL-1BUTANOL, 2-PENTANOL, 3-BUTANOL, HEXANOL, OCTANOL, NONYL ALCOHOL, DODECYL ALCOHOL, CETYL ALCOHOL, 1,2-ETHANEDIOL, 1,2-PROPANEDIOL, 1,3-PROPANEDIOL, 1,4-BUTANEDIOL, 1,5PENTANEDIOL, 1,6-HEXANEDIOL, 1,2,3-PROPANETRIOL, 1,2,3-BUTTANETRIOL, CYCLOPENTANOL, CYCLOHEXANOL, CYCLOHEPTANOL, AND BENZYL ALCOHOL, SEPARTING OFF SAID ALCOHOL-INERT HYDROCARBON MIXTURE AND THEREAFTER WASHING THE TITANIUM TRICHLORIDE ONCE AGAIN WITH AN INERT HYDROCARBON WHEREBY AN ACTIVATED AND SUBSTANTIALLY MOISTURE AND TITANIUM TETRACHLORIDE FREE CATALYST IS OBTAINED.