Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Questions about extraction methods
Optimum
Harmless
*




Posts: 20
Registered: 4-8-2019
Member Is Offline


[*] posted on 10-11-2019 at 05:41
Questions about extraction methods


Hello,

from this list of extraction methods:
- Maceration
- Soxhlet extraction or hot continuous extraction
- Microwave assisted extraction (MAE)
- Ultrasound-assisted extraction (UAE) or sonication extraction
- Accelerated solvent extraction (ASE)
- Supercritical fluid extraction (SFE)

which ones are considered the best and why?
which one is the simple method?

Thanks
View user's profile View All Posts By User
Metacelsus
International Hazard
*****




Posts: 2334
Registered: 26-12-2012
Location: Cambridge, MA
Member Is Offline

Mood: Double, double, toil and trouble

[*] posted on 10-11-2019 at 05:52


None of them except maceration (and Soxhlet extraction, if you have the apparatus) are simple.

The best one will vary depending on the application.

Why do you ask?




As below, so above.
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 592
Registered: 2-8-2018
Member Is Offline


[*] posted on 10-11-2019 at 08:50


Depends on what you are extracting.without knowing that there is no answer.
View user's profile View All Posts By User
SWIM
International Hazard
*****




Posts: 544
Registered: 3-9-2017
Location: 26 Ancho street
Member Is Offline

Mood: I feel more the way I do right now than I ever have before

[*] posted on 10-11-2019 at 16:22


Are you still trying to extract things from sports drinks?

That would be more like continuous liquid/liquid extraction.





Do you want red P?
Eat lots of beets
View user's profile View All Posts By User
Steam
Hazard to Others
***




Posts: 217
Registered: 25-3-2014
Location: Minnesota
Member Is Offline

Mood: Triple Point

[*] posted on 10-11-2019 at 17:31


I would say that in terms of what is generally used on an industrial level for a typical extraction (whatever that means), Maceration will be your most common because almost all the other processes will require some sort of liberation to be as efficient as possible and Maceration (at least for soft materials like biological materials) is cheep. Even for harder materials like minerals- some sort of grinding is necessary. I would say that from then it really depends on what you are extracting. Supercrit fluids are nice due to their high efficiency, and can be "boiled" by simply reducing pressure. I believe they are often used for caffeine extraction of coffee, but I am sure you can find plenty of other apps from pharmaceuticals to the production of areogels.

In mineral processing "solvent extraction" is usually a liquid-liquid extraction using an aqueous phase containing impure metal salts (usually copper), and the organic phase is kerosene with a cheating agent that is selective for the target metal. In terms of tonnage, I would wager that this form of solvent extraction (referred to as SX) is the most used world wide.

Some more context for the question would definitely be helpful- we are kind of throwing stuff against the wall and hoping it sticks.




I am stronger than most children.
View user's profile Visit user's homepage View All Posts By User
fusso
International Hazard
*****




Posts: 1726
Registered: 23-6-2017
Location: Whimsy
Member Is Offline

Mood: Retreated into whimsy

[*] posted on 10-11-2019 at 18:34


Quote: Originally posted by Steam  
cheating agent
I see what you did there:P



View user's profile View All Posts By User
RedDwarf
Hazard to Others
***




Posts: 110
Registered: 16-2-2019
Location: UK (North West)
Member Is Offline

Mood: Variable

[*] posted on 11-11-2019 at 07:56


Quote: Originally posted by Optimum  
Hello,

from this list of extraction methods:
-
- Supercritical fluid extraction (SFE)

which ones are considered the best and why?
which one is the simple method?

Thanks


Applied Science has a video on youtube showing a reasonably simple (for him!) supercritical CO2 extraction process, which I've considered looking at in more detail.
View user's profile View All Posts By User

  Go To Top