The apparent bulk density depends on the particle shape and size distribution. A wide size distribution yields a densely packed product. Particles, even of high density, when present in a narrow size distribution, can yield a lower apparent bulk density. Typically, the apparent bulk density varies from 0.9 to 1.45 grams per cubic centimeter.

Specific surface area

The specific surface area of aluminium granules and aluminium powder is of significance whenever the product is used as a reagent in a chemical-metallurgical reaction. It will affect and, in some cases, control the rate of reaction, efficiency and recovery. The specific surface area is a function of the size distribution, shape and density of the product. It varies accordingly between 1-10 square meters per kg. 

Aluminium granules

 Size distribution

The granules and powder are supplied in a variety of size ranges.

Appearance

The product consists of carbon-free un-oxidized metallic aluminium particles with a silvery appearance, provided in spherical or flat irregular shapes.

Timna process for producing Aluminium Granules and Grits

The process is fully-automatic and involves no chemical reactions. The high-clean aluminium metallic scrap from established industry sources undergoes size reduction, elimination of organic matter in the incinerator, grinding and mechanical surface treatment by hammer mills. The resulting aluminium powder, granules and grits are then sized and packed.

Aluminium Granules and Grits manufacturing process is actually a process which recycles used aluminium-made goods, such as beverage cans and toothpaste tubes, and contributes a lot to environment.
 

Raw material - aluminium scrap