Talk:List of alumina refineries

Australia
Has a majority - reason for Australian project header - please feel free to add other applicable project headers. SatuSuro 07:51, 14 March 2007 (UTC)


 * What do mean by a majority? Australia's share of Alumina production is about 20%. There are many smaller facilities that are not listed here, especially in China —The preceding unsigned comment was added by Qwertytam (talk • contribs) 08:04, 14 March 2007 (UTC).


 * The list as it exists has australian refineries listed - they are a major export earner for australia - so it is tagged with an australian tag. If you are able as i have already stated above to add numerous locations in other countried you might wish to add project headers for those countries as well - if they have country projects. SatuSuro 08:18, 14 March 2007 (UTC)


 * I agree with Qwertyam - major needs to be clearly defined, probably two ways:


 * Largest N per nation where a nation produces X tonnes of aluminium per annum
 * Any smelter which produces Y tonnes of aluminium per annum


 * Someone should identify roughly how many smelters are indeed worth calling "major" for the purpose of a list article - I would think it's only worth listing ten or so internationally, and then one or two for any given country - otherwise it's just listcruft. But I'm not specifically into lists or aluminium... Garrie 02:28, 15 March 2007 (UTC)


 * Removed redundant comment due to misunderstanding of use of word 'major' in article and on this talk page...SatuSuro 06:03, 15 March 2007 (UTC)


 * New to wikipedia so didn't quite understand that multiple projects can put their header onto the same page. Thanks for clearing that up Satu!qwertytam 08:37, 15 March 2007 (UTC)

Major or all
I'd argue for an attempt to include all aluminium smelters, rather than just major ones. We may not be able to achieve the definitive standard required for "it's not on the list at Wikipedia, so it does not exist", but we could get close. These are not things someone can build in the backyard and power by a couple of oxen walking in circles. Or are the refineries relatively simple and it's a smelter I'm thinking of? Do we have a list of those as well? --Scott Davis Talk 04:29, 15 March 2007 (UTC)


 * There's a big difference between ALUMINA refineries and ALUMINIUM smelters. Refineries turn bauxite (dug out of the ground) into Alumina (a white powder, basically Aluminium Oxide) usually using the Bayer process involing Caustic (NaOH) and some heat. Smelters turn Alumina into Aluminium using the Hall-Heroult process involving cathodic reduction with shite loads of electricity. So, short answear is no, usualy these things are pretty big pieces of kit (1,000 ktpa plant = $1 billion to builid).


 * But, there are smaller versions which produce Alumina for uses other than Aluminium (refactories, toothpaste, sand paper etc) which I've attempted to put in the list seperate list. Guessing this is a good thing. Someone correct me if its not. Unfortunately it's not always easy looking at the info to find out what the refinery is producing for and some produce for mixed uses as well. —The preceding unsigned comment was added by Qwertytam (talk • contribs) 08:36, 15 March 2007 (UTC).


 * I think an explanation something like that would be useful at the top of this page, with a link to the aluminium smelter page. I don't understand enough to write it. 79.147.176.12 (talk) 18:29, 13 August 2010 (UTC)

Aluminium smelters
I have created a complementary List of aluminium smelters. I used a similar format to this list, but also added the coordinates of (most of) the smelters. Qwerty310 12:44, 25 August 2007 (UTC)

NEOKER, S.L. (www.neoker.org) is presently the only world producer of alumina whiskers. This tiny filamented material is the best choice to be used as reinforcing phase in Advanced Composites.

Their unique combination of the highest mechanical strength and their outstanding thermal and mechanical stability make alumina whiskers to behave as extremely high performance materials. Therefore they are the perfect candidates to be employed as reinforcing phase in every high added value Advanced Composite.

Alumina whiskers also offer a sharp competitive advantage over its competitors. As an example, the use of Neoker's whiskers avoid the characteristic degradation of SiC whisker reinforced materials, specially in high temperature combustion evironments.

Traditionally, the industries more interested in this whiskeres were the automotive, aeronautics and military industries. Nevertheless, every day they are emerging concrete applications that need new high performance reinforcing materiales. For all of them, Neoker do offer an advanced technological solution with their alumina whiskers.

Main applications:

-Metal Matrix Composites (MMC's) -Ceramic Matrix Composites (CMC's) -Isolation solutions for very high temperatures -Filters for agressive environments. -etc —Preceding unsigned comment added by 213.60.3.173 (talk) 09:33, 18 June 2009 (UTC)

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