Have you ever wondered how aluminium is made?
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- เผยแพร่เมื่อ 5 ม.ค. 2020
- 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.
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Beautiful animation , thoroughly presented.
Thank you ,
EGA.
This was a very well done video with appropriate animations that informed without distracting. Impressed!
54
You make it look like some paradise where you mine.
Awesome animation .Helped a lot in learning about ALuminium Smelting Class 10
Same
Waise itna aayega nahi jitna dekh rahe hai hum, maine 15 saal ke pyq dekhe kahi nahi tha aisa
Everything look easy until there's a pot leak.
@@codea4272 hahaha i hate when that happends:( it`s a mess to clean up. Soon 20 years of my life in a casthouse
Same
Excellent animation, easy to understand, great EGA 👍
Just wow ...knowing extraction of aluminium from its makers itself....
Thanks a lot....
Amazingly explained...perfect work..great industry..awsome people..just loved it..wish to be a part of this amazing industry..
Crystal clear animation, Great !
very user-friendly narration. thank you
The visualization is awesome!, thanks a lot anyway
Truly beautiful animation and indeed informative too!
most informative video i have watched, this will definitely help many people
Extremely informative animation. Feel as if I learned quite a lot about the process.
Wonderful explanation
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.
Even though done 2 years ago I helps a lot in understanding the concepts thankyou for this very well done animation.
Thankyou EGA
Wow ..Good Animation
Best animation video....just loved it..Well done guys
Good Work keep uploading more Info ✨
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!
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.
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.
thanks a lot EGA 🙌
Awesome Animation and shared a brilliant information
That was the besst vide, i have ever seen. Thnak you so much, you helped me a lot and saved my project!
Really wonderful video!!!
no words its an exellent video ..great clarity thankyou
Informative
very beautiful animation!! Really easy to understand the whole process. Thank you so much!
Very Well explained.
Nice video sir
Wow
So educative and interesting
Nice video
It's a great apresentation. Thanks for the share.
thank you for informative video
Good work
This helped so much!
What an amazing video !
Brilliant thank you
very useful
thanks. looking for hall-heroult and found this
why we have to mix bauxite with caustic soda ? and why we have to form supersaturated sodium aluminate solution?
Very nice
Thanks 🤗🤗🤗
Love from India
Good 😊
It helped me
Very well explained. Please make a animation vedio of making of carbon blocks.. Thank you
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A highly professional piece of work.
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
NEAT
What will be the cost to setup this plant ?
Do you know what animación software they uses?
Guinea need the same plan
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 th-cam.com/video/NW1k4wNEq14/w-d-xo.html
from Royal Society of Chemistry. (sorry for any bad English ...)
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
@@quangho8120 my mistake on the Hall-Héroult. The rest stands... If not please comment
@@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.
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?
The amount of cryolite use depends on the pot(reduction cell)
Please, what happens to the caustic liquid after filtration? Are there any uses for it to sell as a byproduct?
it is recycled into the process
@@vgesta the site that I work at just dumps it into the ground
my ambition is work to global aluminium emirates 😊😊😊
❤
Tremendous heat loss during smelting. Need to provide insulation to process. Heat loss = energy loss = $ loss.
Sir I Want Business With U What's The Process For This I'm From City Ahmedabad India.
thank you for the information, may i use your video for presentation in my class?
Isn’t electrolysis also used for the extraction of aluminium from aluminium oxide that comes from bauxite?
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.
How did they ever even discover aluminum with all that has to happen to make it?
🇬🇳🇬🇳🇬🇳✌️✌️
Hi sir
sir I can use your video for my informative video???
Hi
Any class 10 students here?
Me😊
Here
Hi everyone
Hii
Hi, if you want to know a detailed description of the Hall Héroult process, you can go to the following link: th-cam.com/video/CL7-GBcRMTc/w-d-xo.html
It is in Spanish language for latino students of metallurgy.
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)
() 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.
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!
i not think it is good animation 88.
Hi
Hii