A microwave-accelerated three components condensation of benzotriazole, paraformaldehyde and amines under solvent-free reaction condition on alumina has been developed, which produces 1-(α-aminoalkyl)benzotriazoles in good yields.

Use lead acetate to deposite Mo as lead Molybdate sediment from Moly concentrate,and achieved sparating alumina.

A new approach named "Substances\' Gibbs Free Enthalpy Function" is proposed to simplify thermodynamically the calculation of the generation of aluminium nonochloride from alumina and decomposition of aluminium monochloride.

The improvement of the preparation method of standard aluminium oxide solution in coal ash analysis;

Low-temperature reversible chameleon fluorocarbon paint is prepared with fluorocarbon resin as binder,cobalt as chameleon material and aluminium oxide as filler.

The content of aluminium oxide was determinaed in aluminium tanning agent by use of chelatometric titration method under the various titration conditions.