100% tevredenheidsgarantie Direct beschikbaar na betaling Zowel online als in PDF Je zit nergens aan vast
Eerder door jou gezocht
P4 M2 D2 Unit 27 -illustrate how the production of industrially important inorganic substances relates to the properties of the substances involved - BTEC Applied Science Extended Diploma€9,20
In winkelwagen
Unit 27 - Chemical Periodicity and Its Applications
Essay
P4 M2 D2 Unit 27 -illustrate how the production of industrially important inorganic substances relates to the properties of the substances involved - BTEC Applied Science Extended Diploma
Unit 27 - Chemical Periodicity and Its Applications
Instelling
PEARSON (PEARSON)
This piece of work is to help with the P4, M2 and D2 Unit 27 Applied Science 2010 - My teacher has signed this assignment off which means that it does meet the grading criteria. Hope it helps, all the best.
Please take note that this document cannot be copied and I would appreciate if you respect...
Unit 27 - Chemical Periodicity and Its Applications
Alle documenten voor dit vak (10)
8
beoordelingen
Door: misszaraa1 • 4 jaar geleden
Door: omarmahmud_13 • 4 jaar geleden
Door: sashablossom • 5 jaar geleden
Door: rheashah • 5 jaar geleden
Door: furtunayosief • 5 jaar geleden
Door: shemarferguson61 • 5 jaar geleden
Door: povilaspovilionis • 6 jaar geleden
Door: musix • 6 jaar geleden
Thank you
Bekijk meer beoordelingen
Verkoper
Volgen
musix
Ontvangen beoordelingen
Voorbeeld van de inhoud
P4, M2, D2 – Unit 27 - Applied Science
P4 – illustrate how the productoo of iodustrially importaot ioorgaoic substaoces relates
to the propertes of the substaoces iovolved:
M2 –compare the meaos of commercial productoo of ioorgaoic substaoces io relatoo to
the propertes of the substaoces iovolved:
D2 –evaluate how the method of maoufacture of substaoces is related to their propertes
aod uses:
Productoo of alumioa from bauiite:
At least two tonnes of bauxite are required in order to produce 1 tonne of alumina, so it is
important to consider the proportons required in order to make the substances The way in
which alumina is produced from alumina is by the process called electrochemical smeltnn
This technique is ofen used in other felds of the industry such as cosmetcs, sand paper and
others
There are several stanes which the Bayer process undernoes in order for the product to be
made The frst stane of this process is called the millinn This is where the bauxite material
is washed and it is also nrinded – which would reduce the size of the bauxite partcles
exposinn a lot more surface area In this stane there is also lime and liquor is added The
next stane which the Bayer process has to no throunh in order for the product to be
produced is the desilicaton, which is vital to remove a hinh percentane of silica that is
present in the bauxite Havinn a larne amount of silica could result with a diferent amount
of product beinn formed if it is not removed from the bauxite Afer silica has been
removed, the stane called dineston takes place Hot soda soluton is used in order to
dissolve aluminium molecules which would form sodium aluminate very saturated soluton
An equaton for one of the products called the iibbsite is below;
Al(OH)3 + Na+ + OH- → Al(OH)4- + Na+
The equaton below is for Boehmite and Diaspore;
AlO(OH) + Na+ + OH- + H2O → Al(OH)4- + Na+
The conditons which are important when this takes place is the concentraton of soda
soluton, the temperature at which everythinn takes place and also the pressure which is
applied durinn this It depends on the propertes of ore at which conditons the bauxite must
be kept at Those bauxite ores which are hinh in iibbsite they can be processed at 140°C
Lookinn at the boehmite and diaspore on the other hand, they must be kept at 200 - 280°C
which are clearly very sinnifcantly diferent The pressure is applied by the steam saturaton
temperature, for example temperatures of boehmite at around 240°C would have pressure
applied to them at approximately 35 MPa When that has been done, the bauxite is cooled
down to 105°C by usinn diferent water tanks When the bauxite reaches a desired
temperature there would be injectons of hinher quality bauxite which states to be
stmulatnn a beter and more efcient producton of alumina The substance is then heated
further to raise the temperature It is not always nood to put the substances into hinh
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper musix. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €9,20. Je zit daarna nergens aan vast.