UNIQUAC parameters for ethylene glycol-water mixture at different temp

[masuk]

Dear colleagues,

I got few questions and would appreciate your reply

For the UNIQUAC model
Water parmeters (1):
r= 0.92 and q = 1.14, q'=1.4
ethylene glycol parmeters (2)
r = 2.4088 and q = 2.2488, q'=0.4761 (could anybody confirm?)


I need to find the the binary parmeters (a12 and a21) at 30, 40, 55 and 70 deg C.

Any suggestions (articles, softwares etc)?

 

[mbt22]

The DECHEMA data series books have data for this binary, together with regressed parameters. Aspen Plus likewise has a set of parameters, together with their range of applicability.

 

[masuk]

Thanks for the info
......dhchema wants $50 euro..........and I don't have Aspen.........any other source (handbook/website) that is cheaper or free?

 

[mbt22]

Most university, and many company, libraries will have the Dechema books. Most public libraries (in the UK at least) will have a go at finding you a copy. Otherwise, is what you're trying to do really not worth 50 euro?

 

[mmCO]

Try Perry's Chemical Engineers' Handbook, which is now on CD.