Sciencemadness Discussion Board

Photocatalyzed oxidation of hydrocarbons in zeolite cages

Hilski - 3-3-2007 at 23:27

http://pubs.acs.org/hotartcl/chemtech/96/jun/jun.html
The link is to a very interesting article about using zeolites (same thing as moleculcar sieves, I think) with O2 and visible light to oxidize various hydrocarbons in a solventless reaction with very high selctivity and yields. I would be interested in trying a reaction of this sort, but have no idea where to obtain the particular zeolite used in the article. They were using Zeolite Y. Anyone know a source for this stuff? Is it expensive? It may be possible to use regular cheap molecular sieves like the ones used for drying alcohols and such, but I'm not really sure.

EDIT*** Looks like roamingnome already beat me to the punch on this one.

Quote:
Originally posted by roamingnome

i think one needs to step up to zeolites if you really want a good way to convert toulene to benzaldehyde

Zeolite Y
http://www.personal.utulsa.edu/~geoffrey-price/zeolite/fau.h...

...shoot can find the other refs at this time....

http://www.springerlink.com/content/n16548546t166jx5/


[Edited on 4-3-2007 by Hilski]

Sauron - 4-3-2007 at 08:28

http://www.zeolyst.com/html/zeoly.asp

Commercial supplier of Zeolite Y in a variety of forms.

chemrox - 15-3-2007 at 21:12

I hope someone buys the springerlink article and posts it here...

guy - 15-3-2007 at 21:52

Very interesting! I dont know much about zeolites but I just might research them more.

[Edited on 3/15/2007 by guy]
I bought it just for you Chemrox

[Edited on 3/15/2007 by guy]

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Ozone - 16-3-2007 at 05:26

mmm. Tectosilicates!

Zeolite ZSM-5 is used in the MTG (Mobile, Methanol To Gasoline) process. Check this out, it is quite cool; think Fisher-Tropsche, but more efficient.

Acid zeolites are good petrocracking and alkylation catalysts. Zeolites are also useful for performing selctive transformations (one end fits into the cage, and the other is dangling out and reactive).

Cheers,

O3

roamingnome - 16-3-2007 at 08:53

thanks for the article guy!

the preparation of a Barium exchanged zeolite seems pretty strait foward
sodium aluminate isnt too exspensive

buying some prepared zeolite Y seemed to come to around 100 bucks in the end....
even though i bet the oil industries must use like tons of the stuff......

its all about tapping into the right resource pool

the potenial for clean super reactions is there... when you trap the atom is does what you want....