Ultrafine Aluminium Hydroxide Grinding Machine

Fengli ACM/A series are highly efficient super-fine punch-action mechanical micro grinding machines of performing the complete process of material grinding, separation and making of the finished product within the same tightly integrated system.

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Aluminium hydroxide, Al(OH)3, is found in nature as the mineral gibbsite (also known as hydrargillite) and its three much rarer polymorphs: bayerite, doyleite and nordstrandite. Aluminium hydroxide is amphoteric in nature, i.e, it has both basic and acidic nature. Closely related are aluminium oxide hydroxide, AlO(OH), and aluminium oxide (or alumina), Al2O3. Aluminium oxide is also amphoteric in nature. These compounds together are the major components of the aluminium ore bauxite.

Annual production in 2015 was approximately 170 million tonnes, over 90% of which is converted to aluminium oxide (alumina) that is used in the manufacture of aluminium metal.

The major other uses of aluminium hydroxide is as a feedstock for the manufacture of other aluminium compounds: specialty calcined aluminas, aluminium sulfate, polyaluminium chloride, aluminium chloride, zeolites, sodium aluminate, activated alumina, aluminium nitrate.

Freshly precipitated aluminium hydroxide forms gels, which are the basis for the application of aluminium salts as flocculants in water purification. This gel crystallizes with time. Aluminium hydroxide gels can be dehydrated (e.g. using water-miscible non-aqueous solvents like ethanol) to form an amorphous aluminium hydroxide powder, which is readily soluble in acids. Aluminium hydroxide powder which has been heated to an elevated temperature under carefully controlled conditions is known as activated alumina and is used as a desiccant, as an adsorbent in gas purification, as a Claus catalyst support for water purification, and as an adsorbent for the catalyst during the manufacture of polyethylene by the Sclairtech process.

  • Fengli ACM/A series are highly efficient super-fine punch-action mechanical micro grinding machines of performing the complete process of material grinding, separation and making of the finished product within the same tightly integrated system.

  • Guizhou Customer

  • Grinding machine: ACM-420A

  • Material size: 170mm

  • Product fineness: D97=20.22micron

  • Output:100kg/h


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