[DOC] [TLE] Mining and Refining  Process [PAR] The Bayer Process was invented and patented in 1887 by Austrian scientist Karl 
Josef Bayer. Two to three tonnes of bauxite are required to produce one tonne of 
alumina. ... Other processes for obtaining alumina from metal ores are also in use 
in ... Lime and "spent liquor" (caustic soda returned from the precipitation stage)... [DOC] [TLE] Bayer process - Wikipedia [PAR] The Bayer process is the principal industrial means of refining bauxite to produce 
alumina ... The aluminium oxide must be purified before it can be refined to 
aluminium metal. ... In 2010, large amounts of caustic red mud waste products 
were discharged ... By using this site, you agree to the Terms of Use and Privacy 
Policy. [DOC] [TLE] How aluminum is made - material, manufacture, making, used ... [PAR] The Bayer process for refining aluminum ore, developed in 1888 by an ... It takes 
about 4 lb (2 kg) of bauxite to produce 1 lb (0.5 kg) of aluminum metal. ... but the 
compound is now produced synthetically for use in the production of aluminum. ... 
This material is washed to recover alumina and caustic soda that can be reused. [DOC] [TLE] Alumina - Raw material for producing aluminium - Norsk Hydro [PAR] Aug 8, 2013 ... Alumina is then used to produce primary aluminium. ... The Bayer process is 
used to extract alumina from the bauxite: ... Alumina is separated from the bauxite 
by using a hot solution of caustic soda (sodium hydroxide) ... is extracted from 
bauxite' on www.hydro.com and thought it might be of interest to you. [DOC] [TLE] Alumina Refining | The Aluminum Association [PAR] The Bayer process, discovered in 1887, is the primary process by which alumina 
is ... To produce pure aluminum, alumina is smelted using the HallHroult ... 
aloxide, aloxite or alundum, depending on the industry and the metal's use. ... 
First, after the bauxite is crushed, washed and dried, it is dissolved with caustic 
soda at... [DOC] [TLE] aluminum processing | Britannica.com [PAR] Aluminum, or aluminium (Al), is a silvery white metal with a melting point of ... 
Aluminum processing, preparation of the ore for use in various products. .... In the 
first step, bauxite is ground, slurried with a solution of caustic soda ... A typical 
alumina plant, using the Bayer process, can produce 4,000 tons of alumina per 
day. [DOC] [TLE] J! Archive - Show #3252, aired 1998-10-27 [PAR] Strawberries will keep you from being a scurvy dog; they're higher in ... To 
produce this metal using the Bayer Process, you begin with caustic... [DOC] [TLE] Alumina: Filtration in the alumina production process - Filtration + ... [PAR] Jun 18, 2010 ... As a general rule, four tonnes of dried bauxite is required to produce two tonnes 
of alumina, which in turn provides one tonne of primary aluminium metal. ... 
Almost all alumina plants in the world use the Bayer process, patented ... and the 
liquor contains a quantity of caustic soda and dissolved aluminium. [DOC] [TLE] How Aluminum is Produced - Rocks and Minerals [PAR] FACT: Four tons of bauxite are required to produce 2 tons of alumina. ... The ore 
is then fed into large grinding mills and mixed with a caustic soda solution ... The 
grinding mill rotates like a huge drum while steel rods - rolling around loose 
inside the ... by using gravity, although some chemicals are added to aid the 
process. [DOC] [TLE] Aluminium - Fact Sheets - Australian Mines Atlas [PAR] Bauxite is the ore most commonly mined for aluminium in which aluminium 
occurs ... Aluminium is a silvery-white, tough and lightweight metal (specific 
gravity 2.7). ... of silica consumes the caustic soda needed to make alumina, thus 
low reactive ... Bayer Process where alumina (Al2O3) is extracted from bauxite in 
a refinery. [DOC] [TLE] bauxite mills bayer process - About MAC [PAR] Alumina refining | alteo-alumina- bauxite mills bayer process ,The Bayer ... 
Bauxite is finely ground in mills, then mixed with a caustic soda solution and 
steam.

Question: To produce this metal using the Bayer Process, you begin with caustic soda & bauxite
Answer: Aluminum