Essays Tagged: "Aluminium oxide"

Aluminum. Number

umber thirteen and the chemical symbol Al. It has had many names over the years, including alumina, aluminium, and aluminum. It was in 1807 when a man by the name of Davy proposed the name aluminum, a ... hen a man by the name of Davy proposed the name aluminum, and it was accepted, however, until 1925, aluminium was also an accepted spelling, when the American Chemical Society officially decided on th ...

(3 pages) 93 2 4.4 Oct/2003

Subjects: Science Essays > Chemistry


ALUMINIUMAustralia is one of the world's largest producers of aluminium. Aluminium is produced from ... est producers of aluminium. Aluminium is produced from Bauxite which is an ore comprised of several aluminium oxides. This is formed in nature by extensive chemical weathering of other rocks and conta ... by the reactivity of the minerals in the ore and the strength of the bonds within them. Which means aluminium is extremely difficult to extract from Al2O3 because of the strong ionic bonds that are pr ...

(6 pages) 60 0 4.0 Nov/2006

Subjects: Social Science Essays > Economics > Foreign & International Economics

The production, characteristics and use of alumin

Aluminium is a strong, durable and lightweight metal. In today's energy-conscious society, these thr ... l. Products like motor cars, is an obvious example. It is not surprising therefore, that the use of aluminium in all its various forms - plate, sheet, extrusions, castings and forgings - is increasing ... castings and forgings - is increasing across the whole range of transport applications. The use of aluminium for automobile engine blocks and cylinder heads, heat exchangers, transmission housings, e ...

(6 pages) 12 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Catalyst - Preparation and Characterization

t or the active component. One important example of support promotion is control stability. Support oxides may occur in several different phases, some undesirable. With Al2O3, for example, the preferr ... phase has high surface area, a certain degree of acidity, and forms solid solutions with transition oxides such as CoO. When heated, γ- Al2O3 transforms into α- Al2O3, which has a hexagona ...

(22 pages) 33 0 5.0 Apr/2008

Subjects: Science Essays > Engineering > Chemical Engineering

Aluminium Extraction from the Lithosphere

Pure aluminium is a relatively soft, silvery white metal. When exposed to air, a thin coating of Aluminiu ... and has great strength when alloyed, it doesn’t rust and has high electrical conductivity, and Aluminium is also ductile, making it a very useful metal. Aluminium readily makes alloys with copper ... y useful metal. Aluminium readily makes alloys with copper, zinc, magnesium, manganese and silicon. Aluminium foil is 92-99% pure aluminium. Other uses of aluminium alloys include computers (all Apple ...

(3 pages) 15 0 0.0 Feb/2009

Subjects: Science Essays > Chemistry

Bauxite In Weipa, Queensland Question: Perform research on an ore located in Queensland. Describe the processes involved in extracting and smelting.

the element, aluminum. There are however various igneous rocks which contain high concentrations of aluminium oxide but bauxite is financially more efficient due to it being far cheaper to extract the ... and Calcium and as a result, there's an increase in the concentration of the more insoluble element Aluminium along with various other insoluble 'imperfections'. This forms a ground surface known as l ...

(8 pages) 15 0 0.0 Jun/2009

Subjects: Science Essays > Chemistry