THERMODYNAMIC BASES OF PROCESS OF SALVAGING OF THE WATER DRAIN OF olefin epoxidation process WITH USE SUPERCRITICAL extraсtion PROCESS

Kajumov R.A., Tuhvatova A.T., Sagdeev A.A, Gumerov F.M, Gabitov F.F.
Kazan government technology university. Kazan K. Marksa str., 67
krustam@bk.ru

The purpose of the present research is to work out the thermodynamic principles  of salvaging of olefins epoxidation process waste by using supercritical extraction process. The important components present in the given waste are: ethylbenzene, acetophenone, phenol, methyl phenyl carbinol, propylene glycol, molybdenum. Experimental researches have been carried out on solubility of molybdenum complexes, ethylbenzene, acetophenone, propylene glycol in SC СО2. Diagrams of solubility of substances against pressure and temperature are presented in fig. 1,2,3,4. 
For description purposes we have used the Peng-Robinson`s equation of state with three adjustable parameters. 

Fig. 1. The solubility of molybdenum  metalloorganic complex 	Fig. 2. The solubility of  etilbenzene 
1,2- Т= 318 К (experimental, description); 
3,4-Т= 328 К (experimental, description); 
5 – Т= 338 К (description)	
		
 Fig. 3. The solubility of  acetophenone
1,2-Т = 318 К (experimental, description); 
3,4-Т = 328 К (experimental, description)	 Рис. 4. The solubility of  propylene glycol

Based on the results of our researches, 2 invention applications have been submitted (№2007141338, №2008112895). The research is conducted with respect to the government contract №5856 from 31.03.08 with FASIE.