Question

*daca randamentul reactiei de polimerizare este de 95%. Va roog, ajutati-ma! :)

Answer 1

reactia 1 : HC≡CH + HCl ⇒ H2C=CH-Cl               η1 = 90%
reactia 2 : H2C=CH2 + Cl2 = Cl-CH2-CH2-Cl        η2= 80%
reactia 3 : Cl-CH2-CH2-Cl = CH2=CH-Cl + HCl     η3= 75%
a) n C2H2 = 0,896x1250/22,4 = 50 kmoli     nCV = 0,9x50 = 45 moli
 n practic CV  = 45 moli    n teoretic = 1/(η2xη3) xn practic
n etena = 45/(0,8x0,75) = 75 moli    m etena = 75x 28 = 2100kg
b) n CH2=CHCl = -[-CH2-CHCl-]n-
teoretic : mPVC = mCV = 45x62,5 = 2812,5kg  
practic : mPVC pur = 2812,5x0,95  = 2671,875 kg
mPVC cu imp. = 2671,875x100/94 = 2842,42 kg