Have you ever wondered how aluminium is made?
Aluminium is at the heart of modern life, from the smartphone in your hand, to the plane you fly in, to the buildings where you live and work. As economies grow and living standards rise, industry experts expect that demand for aluminium will increase.
Learn more about Aluminium: www.ega.ae/en/products/
Step 1: Bauxite Mining
The production process for aluminium starts with the mining of bauxite ore. Layers of bauxite are generally found near the surface so it is extracted through open cast mining. Around 90% of the world's resources are in tropical & sub-tropical regions
Step 2: Alumina Refining
Bauxite is refined into alumina using the Bayer process. Two or three tonnes of bauxite are required to produice one tonne of alumina. In the digestion stage, hot caustic acid is added to the bauxite to dissolve the aluminium bearing minerals in the bauxite. Clarification separates bauxite solids from the pregnant liquor via sedimentation. In the precipitation stage, alumina crystals are recovered from the liquor via crystallization. Calcination is a roasting process to remove the remaining water.
Step 3: Aluminium Smelting
Alumina is smelted into aluminum using the Hall-Heroult process. It takes two tonnes of alumina to produce one tonne of aluminium. Alumina is poured into special reduction cells called pots with an electrolytic bath of molten salt called cryolite at temperatures around 960 degrees Celsius. An electrical current is then projected into the mixture at 400KA or above. This current then breaks the bonds between aluminium and oxygen atoms in alumina, resulting in liquid aluminum settling at the bottom of the reduction cell.
Step 4: Casting
Aluminium is then transferred to the cast house, where it is made into products using several different methods. Alloys are added into many of our products, according to customer specifications, before the solidification stage. In re-melt casting aluminum, at a temperature of 700 degree Celsius, is poured into moulds. The moulds are cooled and the aluminium solidified before being packed and shipped to the customer. EGA also supplies nearby customers in Khalifa Industrial Zone Abu Dhabi. Receiving aluminum as molten metal eliminates the need to use high energy to re-melt it before use. We transfer molten metal by truck in preheated 14.5 tonne crucibles which can keep the metal liquid for 18 hours at temperatures of around 780 degrees Celsius.
Пікірлер: 102
Awesome animation .Helped a lot in learning about ALuminium Smelting Class 10
@xenon6138
3 жыл бұрын
Same
@muhammadalisiddiqui7640
3 жыл бұрын
Waise itna aayega nahi jitna dekh rahe hai hum, maine 15 saal ke pyq dekhe kahi nahi tha aisa
@codea4272
3 жыл бұрын
Everything look easy until there's a pot leak.
@thomasstenersen9042
3 жыл бұрын
@@codea4272 hahaha i hate when that happends:( it`s a mess to clean up. Soon 20 years of my life in a casthouse
@yuk_34
2 жыл бұрын
Same
Beautiful animation , thoroughly presented. Thank you , EGA.
This was a very well done video with appropriate animations that informed without distracting. Impressed!
@sooraj-cd4vz
3 жыл бұрын
54
You make it look like some paradise where you mine.
Just wow ...knowing extraction of aluminium from its makers itself.... Thanks a lot....
At about 5.00 the ingot caster is shown. At my plant we had electromagnetic casting molds which were fascinating to study. We also had older direct chill molds. I was told that the use of EMC eliminated the need to use a scarfing saw to prep the ingot sides prior to hot rolling. DCC would cause unwanted surface defects that the saw would remove. Nice animation.
The visualization is awesome!, thanks a lot anyway
very user-friendly narration. thank you
Excellent animation, easy to understand, great EGA 👍
no words its an exellent video ..great clarity thankyou
Even though done 2 years ago I helps a lot in understanding the concepts thankyou for this very well done animation.
Wonderful explanation
excellent. There's a similar presentation from the 1950's that is very entertaining (HOW IT'S MADE: Aluminum) and gives some personality to the process. This is great, though, thanks!
most informative video i have watched, this will definitely help many people
That was the besst vide, i have ever seen. Thnak you so much, you helped me a lot and saved my project!
Crystal clear animation, Great !
Amazingly explained...perfect work..great industry..awsome people..just loved it..wish to be a part of this amazing industry..
Thankyou EGA
Truly beautiful animation and indeed informative too!
It's a great apresentation. Thanks for the share.
Thanks for the info. Using this as quest inspiration for my DF tabletop game. Just need to find out what happens if the process fails during the acid treatment or if the alumina isn't allowed to be in electrolysis long enough now.
@codea4272
3 жыл бұрын
You can just take out the aluminium. And the process just continue, you don't need to stop the reduction cell(pot) to take out the aluminium.
Wow ..Good Animation
Extremely informative animation. Feel as if I learned quite a lot about the process.
Best animation video....just loved it..Well done guys
thanks a lot EGA 🙌
very beautiful animation!! Really easy to understand the whole process. Thank you so much!
Awesome Animation and shared a brilliant information
why we have to mix bauxite with caustic soda ? and why we have to form supersaturated sodium aluminate solution?
Good Work keep uploading more Info ✨
This helped so much!
Wow So educative and interesting
thank you for informative video
Very Well explained.
Really wonderful video!!!
Love from India
Brilliant thank you
What an amazing video !
thanks. looking for hall-heroult and found this
Do you know what animación software they uses?
Nice video sir
very useful
Thanks 🤗🤗🤗
Informative
Good work
Nice video
What will be the cost to setup this plant ?
Very nice
Well done, thank you.
Very awesome video, if any person who has learnt about aluminum properties, application , uses, can he is qualified to apply for internship for professional learning, manufacturing pure aluminum from bauxite, silica and iron oxide bonded compound, ........can we get aluminium powder, silica sand segregated from, sodium oxide filtered out before formation of bauxite crystal.. pls respnd
A highly professional piece of work.
It helped me
Very well explained. Please make a animation vedio of making of carbon blocks.. Thank you
@shashacui9423
3 жыл бұрын
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Good 😊
Hello i want asked how many caustic soda solution you will mix? How many and which kind of seed crystal you will mix? How many cryolite is mixed?
@codea4272
3 жыл бұрын
The amount of cryolite use depends on the pot(reduction cell)
the video graphics, design and some chemical parts are all well made, although there are some very nasty mistakes in fundamental chemistry and process names... first, Hall-Héroult is a refining process of bauxite, and not the electrolysis process. second, What are those electrons flowing from the anode (+) to the cathode (-)? it's not a galvanic cell (e.g. battery), but the opposite (electrolytic cell) Also, from the way it's presented, it seems that carbon is a must reagent from the reaction, to take the lone Oxygen atoms away... for a better chemical explanation of this part: minute 2:05 at kzread.info/dash/bejne/gItlzZawfqjXYZc.html from Royal Society of Chemistry. (sorry for any bad English ...)
@quangho8120
3 жыл бұрын
Wait what? Hall-Héroult is the electrolysis process. The Bayer process is the first refining step. en.wikipedia.org/wiki/Hall%E2%80%93H%C3%A9roult_process
@xxxbobmarleyxxx
3 жыл бұрын
@@quangho8120 my mistake on the Hall-Héroult. The rest stands... If not please comment
@denischarette8547
Жыл бұрын
@@xxxbobmarleyxxx I see one mistake of which I`m sure. In the video, they should have made the electrons flow in the opposite direction, from cathode to anode.
thank you for the information, may i use your video for presentation in my class?
Sir I Want Business With U What's The Process For This I'm From City Ahmedabad India.
Please, what happens to the caustic liquid after filtration? Are there any uses for it to sell as a byproduct?
@vgesta
3 жыл бұрын
it is recycled into the process
@tysonmoore5909
Жыл бұрын
@@vgesta the site that I work at just dumps it into the ground
NEAT
Any class 10 students here?
@musicadda4483
6 ай бұрын
Me😊
@prestigiouspet24
5 ай бұрын
Here
Guinea need the same plan
Isn’t electrolysis also used for the extraction of aluminium from aluminium oxide that comes from bauxite?
@jadinwemette8251
3 жыл бұрын
Didn't see that in the video leading up to the point of the reduction cells process. Only seen that alumina is fed into the cell using the electrolysis of the anodes and cathodes with the solution separating oxygen from the aluminum then created co2 that deteriorates the carbon blocks or anodes. Recycle and reuse must be a huge part of the process also.
Tremendous heat loss during smelting. Need to provide insulation to process. Heat loss = energy loss = $ loss.
sir I can use your video for my informative video???
my ambition is work to global aluminium emirates 😊😊😊
❤
How did they ever even discover aluminum with all that has to happen to make it?
Yes right, the toxic byproduct are not been recycled, they end in an big hole, which forms a lake, and finally ends in the sea.... go and check the Alcoa factory in Spain, San Ciprian. Go and google Earth 43º42’03”N 7º29’19W (O alto de Lago)
Hi sir
Hi, if you want to know a detailed description of the Hall Héroult process, you can go to the following link: kzread.info/dash/bejne/dYBrj6l7k7WzhMY.html It is in Spanish language for latino students of metallurgy.
🇬🇳🇬🇳🇬🇳✌️✌️
Hi
() is silver-white metal, very lightweight yet relatively strong and ductile thatit can be drawn into wires or pressed into sheets or foil. The name was derived from n, the Latin name for alum (an aluminum sulfate mineral). It is the most abundant metallic element and the third most abundant of all elements in the earth’s crust, making up 8% of the crust by weight. Aluminum does not occur in the metallic state in nature because aluminum metal reacts with water and air to form powdery oxides and hydroxides.
Hi everyone
@tejasv4529
2 жыл бұрын
Hii
no
Recycled is better Ask Novelis
its really hard to listen to it and do something else when you're forced to read text. put some smooth posh British guys voice in it and it would be great.
This was a very well done video with appropriate animations that informed without distracting. Impressed!
@sooraj-cd4vz
3 жыл бұрын
i not think it is good animation 88.
Hi
@tejasv4529
2 жыл бұрын
Hii