Liquid octa 2-lower alkoxy ethoxides of aluminum and (magnesium or calcium)

Claim 1

The method for making an oxide product of the formula MAl 2 O 4 wherein M is calcium or magnesium comprising the steps of combining a solution of a compound of the formula MAl 2 (O--CH 2 --CH 2 --O--R) 8 , wherein R is a C 1 to C 4 alkyl, in a polar organic solvent with at least about 6 moles of water per mole of said compound so as to hydrolyze said compound and form a hydrolyzed precipitate; separating said polar organic solvent and heating said hydrolyzed precipitate at a temperature and for a time sufficient to remove residual carbon moieties but at a temperature less than 700° C. so as to form an anhydrous, amorphous, small particle size, high surface area, high purity oxide product of the formula MAl 2 O 4 .

Claim 2

The method for making an oxide product of the formula MAl 2 O 4 wherein M is calcium or magnesium comprising the steps of combining a solution of a compound of the formula MAl 2 (O--CH 2 --CH 2 --O--R) 8 , wherein R is a C 1 to C 4 alkyl, in a polar organic solvent with at least about 6 moles of water per mole of said compound so as to hydrolyze said compound and form a hydrolyzed precipitate; separating said polar organic solvent and heating said hydrolyzed precipitate at a temperature and for a time sufficient to remove residual carbon moieties but at a temperature less than 700° C. so as to form an anhydrous, amorphous, small particle size, high surface area, high purity oxide product of the formula MAl 2 O 4 .

Claim 5

The method for forming an oxide of magnesium or calcium and aluminum which comprises reacting magnesium or calcium and aluminum with a stoichiometric excess of a compound of the formula R--O--CH 2 --CH 2 --O--H wherein the ratio of the gram atoms of aluminum to maganesium or calcium is about 2:1 or less for a time sufficient to form a reaction mass containing a compound of the formula MAl 2 (O--CH 2 --CH 2 --O--R) 8 wherein M is Ca or Mg and R is a C 1 to C 4 alkyl, combining the reaction mass as above with at least about 6 moles of water per mole of said MAl 2 (O--CH 2 --CH 2 --O--R) 8 compound so as to precipitate a hydrolyzed product, separating said excess of said R--O--CH 2 --CH 2 --O--H compound from said reaction mass, and heating said hydrolyzed product at a temperature and for a time sufficient to dry said product and remove residual carbon moieties but at a temperature less than about 700° C. so as to form an anhydrous, amorphous, particulate product of the formula CaAl 2 O 4 or MgAl 2 O 4 .

Claim 6

The method for forming an oxide of magnesium or calcium and aluminum which comprises reacting magnesium or calcium and aluminum with a stoichiometric excess of a compound of the formula R--O--CH 2 --CH 2 --O--H wherein the ratio of the gram atoms of aluminum to maganesium or calcium is about 2:1 or less for a time sufficient to form a reaction mass containing a compound of the formula MAl 2 (O--CH 2 --CH 2 --O--R) 8 wherein M is Ca or Mg and R is a C 1 to C 4 alkyl, combining the reaction mass as above with at least about 6 moles of water per mole of said MAl 2 (O--CH 2 --CH 2 --O--R) 8 compound so as to precipitate a hydrolyzed product, separating said excess of said R--O--CH 2 --CH 2 --O--H compound from said reaction mass, and heating said hydrolyzed product at a temperature and for a time sufficient to dry said product and remove residual carbon moieties but at a temperature less than about 700° C. so as to form an anhydrous, amorphous, particulate product of the formula CaAl 2 O 4 or MgAl 2 O 4 .