Preparation of alkyl aluminum compounds

Claim 1

A METHOD FOR MAKING A TRIALKYLALUMINUM COMPOUND WHOSE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS, WHICH METHOD CONSISTS OF FORMING A MIXTURE CONSISTING ESSENTIALLY OF COMMERICAL GRADE FINELY DIVIDED ALUMINUM, AN ALPHA-OLEFIN HAVING FROM 4 T 8 CARBON ATOMS, HYDROGEN AND AT LEAST ONE HALOGEN-FREE ALKYLAHUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIALKYL-ALUMINUMS AND DI-ALKYLALYMINUM HYDRIDES WHEREIN THE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 140*C. TO INITIATE THE AN EXOTHERMIC REACTION, PREVENTING THE TEMPERATURE FROM RISING ABOVE 250*C., CONTROLLING THE TEMPERTURE DURING THE GREATER PART OF THE REACTION PERIOD TO BETWEEN 140*C. AND 200* C. WHILE MAINTAINING THE REACTION MIXTURE AT A PRESSURE OF AT LEAST 300 P.S.I.G., COOLING THE REACTION MIXTURE TO A TEMPERATURE BELOW 120*C., AND SEPARATING THEREFORM A TRIALKYL ALUMINUM COMPOUND WHOSE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS.

Claim 2

A METHOD FOR MAKING A TRIALKYLALUMINUM COMPOUND WHOSE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS, WHICH METHOD CONSISTS OF FORMING A MIXTURE CONSISTING ESSENTIALLY OF COMMERICAL GRADE FINELY DIVIDED ALUMINUM, AN ALPHA-OLEFIN HAVING FROM 4 T 8 CARBON ATOMS, HYDROGEN AND AT LEAST ONE HALOGEN-FREE ALKYLAHUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIALKYL-ALUMINUMS AND DI-ALKYLALYMINUM HYDRIDES WHEREIN THE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 140*C. TO INITIATE THE AN EXOTHERMIC REACTION, PREVENTING THE TEMPERATURE FROM RISING ABOVE 250*C., CONTROLLING THE TEMPERTURE DURING THE GREATER PART OF THE REACTION PERIOD TO BETWEEN 140*C. AND 200* C. WHILE MAINTAINING THE REACTION MIXTURE AT A PRESSURE OF AT LEAST 300 P.S.I.G., COOLING THE REACTION MIXTURE TO A TEMPERATURE BELOW 120*C., AND SEPARATING THEREFORM A TRIALKYL ALUMINUM COMPOUND WHOSE ALKYL GROUPS HAVE FROM 4 TO 8 CARBON ATOMS.