Read this......I hope it sheds some light...java
http://www.phasetransfer.com/wwwboard/messages/237.htm (http://www.phasetransfer.com/wwwboard/messages/237.htm)
Excerpt...."In practice, ion exchange resins are low in volume efficiency which means you must use a lot of resin to separate a little cation. In addition, most commercial ion exchange resins are highly hydrophilic. Thus, unless your product is water soluble, you may have a hard time "swelling" the resin with an organic solution of your product. Ion excahnge resins are most effective when "swelled."
also try reading this ....
http://www.phasetransfer.com/wwwboard/messages/350.htm (http://www.phasetransfer.com/wwwboard/messages/350.htm)
Excerpt...."Highly Effective Catalyst Separation - problems removing lipophilic PTCs from organic solvents and reaction products A new process, PTCMemSep, is based on solvent resistant nanofiltration membranes. It separates PT catalyst directly from the product and solvent, at room temperature, without water washing. The process dramatically reduces the work up normally required to separate out PT catalysts such as Aliquat 336 (methyl tricaprylyl ammonium chloride), TOABr (tetraoctyl ammonium bromide), TBABr (tetrabutyl ammonium bromide), and phosphonium salts from solvents such as toluene. Because it works at room temperature, degradation products of PTCs are minimal, and the waste costs associated with catalyst removal and disposal are massively reduced. In fact, the PT catalyst can in many cases be recycled back into the process and used two, three or more times! The process works by retaining the PTC with a solvent resistant nanofiltration membrane, while solvent and product molecules pass through"
and at this site there's a good source of info on PTC"S check out the library downloads.....
http://www.phasetransfer.com (http://www.phasetransfer.com)
that was actually very interesting! unfortunately i possess neither
an ion exchanger, nor this easy-to-workup PTC :( .
but this might help: http://www.phasetransfer.com/wwwboard/messages/284.htm (http://www.phasetransfer.com/wwwboard/messages/284.htm)