, . . , , . , , , .
. 7.1. |
S dS n (. . 7.1). ( )
,
ρ ;
τ ;
x S.
, .
, , :
, . ū ( )
W= ρ ūS,
.
, . :
,
R i - i .
. . , å Ri = 0.
, n - n , (n -1) .
:
N i .
(S Ri) , . .
7.3. 34 , 4000 / 3(4)2, 94 %- . , 40 %- . (CaSO42H2O) , . 1 , , 4000 20 %- ?
|
|
: :
Ca3(PO4)2+3H2SO4+6H2O=2H3PO4+3(CaSO42H2O).
:
-A-3C-6B+2F+3G=0.
/:
MA =310,18; MC =98,07; MB =18,02; MF =98,00; MG =172,17.
(/):
WC0=WC - w (-3) MC =0-12,896×(-3) 98,07=3791,1;
WB0 =0-12,896(-6)18,02=1394,3;
WF=WF0+w 2 MF =0+12,896298,00=2527,6;
WG =0+12,8963172,17=6660,8.
, .
,
W B2= W F(1-0,4)/0,4=2527,6(1-0,4)/0,4=3791,4 /.
,
W B1= W C(1-0,94)/0,94+ W B1=242+ W B /.
R W= W B0=1394,3 /.
,
W B1=3791,4+1394,3-242=4943,7 /.
:
;
WF1=0; WF2=xW2; RF=WF =2527,6 /;
x ;
, .
W2=WF+WB2 =2527,6+3791,4=6319 /.
() :
M 0 ; 0 =4000 .
0 t 0,2 x. x =0,4-0,2exp(-1,580t).
1
x =0,4-0,2exp(-1,580)=0,3588, 35,88 %.
:
.