Jump to content

  2. →
  3. →


Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

Ion Exchange =>physical Adsorption Or Chemisorption ?

Started by j_fersheva, Dec 12 2005 03:34 AM

This topic has been archived. This means that you cannot reply to this topic.
2 replies to this topic
Share this topic:
| More

#1 j_fersheva

j_fersheva

    Brand New Member

  • Members
  • 3 posts

Posted 12 December 2005 - 03:34 AM

Hi
I have an project and I want 2 know whether ion exchange phenomena is physical adsorption or chemisorption? n what is the major difference between chemisorption n physical adsorption ? are there any difference in their regeneration process of the adsorbent?
Is there any effect to De and Kya if it is chemisorption or physical adsorption?

thx
cool.gif
gbu

#2 Guest_Dar_*

Guest_Dar_*
  • guestGuests

Posted 12 December 2005 - 12:28 PM

Hi
In physical adsorption the molecules of the substance are held by the surface of the adsorbent by weak forces of attraction (Van dar Waals forces) & there is no chemical reaction taking place between the adsorbent and adsorbate (substance to be adsorbed)
On the other hand in chemisorption there is a chemical reaction between the adsorbate and adsorbent.
The regeneration of physical adsorption is easy but regeneration of chemisorbent is difficult
Well I don't have much knowledge about ion exchange but it donot fall in the category of physical and chemical adsorption . Although it often share theory with adsorption but it has its own specilized field .
I think you should go through the book
"Chemical Engineering vol 2
By Coulson & Richardson"

Please correct me if I am wrong in any of the statement.

Regards
Dar

#3 siretb

siretb

    ChE Jedi

  • ChE Plus Subscriber
  • 304 posts

Posted 19 December 2005 - 03:45 AM

I would classify Ion Exchange in chemi sorption if I had to. Because iin Ion exchange two ions are exchanged by the resin, releasing one ion and bonding another. This is kind of chemical reaction.
Back to Student

Similar Topics




  1. Cheresources.com Community
  2. → General Chemical Engineering Forum
  3. → Student
  4. Guidelines / Rules for Posting