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What does a alumina refining do?
Generally speaking, the chemical process is known as the Bayer process. It is used to turn mined Bauxite ore into alumina. The fist stage is known as Digestion. The Bauxite is ground in mills and then slurried up with hot, caustic soda solution. this dissolves the Alumina that is contained in the Bauxite ore. Other impurities found in the Bauxite such as silica, iron and titanium compounds are not dissolved. The next stage is known as Clarification. The Bauxite ore and Caustic soda slurry are passed into rows of Settler tanks (also known as thickeners or clarifiers). Usually with the help of a diesel based polymer known as flocculant and a defoamer, the mud and impurities will settle to the bottom of the Thickener, leaving a clear alumina charged 'pregnant liquor' overflow. This is further filtered and passed on to the next stage in the process known as Precipitation. During Precipitation, the liquor is cooled, concentrated and stirred in open top tanks until it forms crystals. Pure alumina is added to the mixture to encourage alumina trihydrate crystals to form. It is then moved along to the next stage of the process. In Calcination, the alumina trihydrate crystals are washed, filtered and heated in gas fired kilns (usually at temperatures exceeding 1 100 degress celcius). This removes the 3 molecules of water from the alumina trihydrate. The remaining fine white powder is known as alumina. It is then typically cooled and stored until it is ready to be sent to a Smelting facility to be made into Aluminium. Typically, you will use 2 tonnes of Bauxite to produce 1 tonne of Alumina. There are a number of side streams of the process but this is just a very brief overview..
What is blood a compound mixture or element?
mixture
Is helium a gaseous mixture?
No - it is an element all in itself. An example of a gas mixture is carbon dioxide, made of a mixture of oxygen and carbon. So helium is just helium; nothing mixed in with it.
What is a mixture of many gases called?
Yes, air is a mixture of mostly nitrogen and oxygen, with some carbon dioxide, water vapor, and argon as well as trace amounts of other gasses.
Why is it necessary to compare volumes and gas only at the same temperature and pressure?
It is not necessary, it is just easier to do so.
How do you break aluminum alumina bond?
I'm not quite sure what you mean because alumina is a compound (aluminum oxide or Al2O3) and aluminum is an element. Therefore, there isn't a bond per se from aluminum to alumina... just aluminum-aluminum bonds and aluminum-oxygen bonds. I do know that alumina will dissolve in a strong base solution, such as KOH or NaOH, and so if you have a layer of alumina on an aluminum sheet, a strong base solution will remove it. Also, a strong acid will dissolve the aluminum. (I do have to admit I'm not entirely sure what the effect of a strong base on aluminum and a strong acid on alumina is, though... and that might be a problem... hmm...)
What does a alumina refining do?
Generally speaking, the chemical process is known as the Bayer process. It is used to turn mined Bauxite ore into alumina. The fist stage is known as Digestion. The Bauxite is ground in mills and then slurried up with hot, caustic soda solution. this dissolves the Alumina that is contained in the Bauxite ore. Other impurities found in the Bauxite such as silica, iron and titanium compounds are not dissolved. The next stage is known as Clarification. The Bauxite ore and Caustic soda slurry are passed into rows of Settler tanks (also known as thickeners or clarifiers). Usually with the help of a diesel based polymer known as flocculant and a defoamer, the mud and impurities will settle to the bottom of the Thickener, leaving a clear alumina charged 'pregnant liquor' overflow. This is further filtered and passed on to the next stage in the process known as Precipitation. During Precipitation, the liquor is cooled, concentrated and stirred in open top tanks until it forms crystals. Pure alumina is added to the mixture to encourage alumina trihydrate crystals to form. It is then moved along to the next stage of the process. In Calcination, the alumina trihydrate crystals are washed, filtered and heated in gas fired kilns (usually at temperatures exceeding 1 100 degress celcius). This removes the 3 molecules of water from the alumina trihydrate. The remaining fine white powder is known as alumina. It is then typically cooled and stored until it is ready to be sent to a Smelting facility to be made into Aluminium. Typically, you will use 2 tonnes of Bauxite to produce 1 tonne of Alumina. There are a number of side streams of the process but this is just a very brief overview..
What is blood a compound mixture or element?
mixture
Can you use silica in place of Alumina?
Silica and alumina have different properties and may not always be interchangeable in all applications. Silica is typically used for its high porosity and low surface area, while alumina is known for its high surface area and thermal stability. It's important to consider the specific requirements of the application before replacing one with the other.
Is it always possible to identify something as an element compound. Substance or mixture just by looking at it?
Very rarely is possible; generally to identify an element or compound it is absolutely necessary to realize a deep chemical/physical analysis.
Is it possible to identify something as an element compound pure substance or mixture just by looking at it?
Very rarely is possible; generally to identify an element or compound it is absolutely necessary to realize a deep chemical/physical analysis.
When is teased hair necessary?
teased hair is necessary if you are :a) in a danceb) if you just woke upc)if you just feel like it
What is the partial pressure of a gas in a mixture of a gases?
The partial pressure is the pressure exerted by just one gas in the mixture.
What is the partial pressure of a gas pressures in the mixture?
The partial pressure is the pressure exerted by just one gas in the mixture.
What is the partial pressure of a gas in the mixture of gases?
The partial pressure is the pressure exerted by just one gas in the mixture.
Is chocolate milk a mixture or a compound?
its a homogenous mixture... its mixed so well that you cant tell there are separate parts, but there really are
Why is cell division necessary for all living things?
It's just necessary
