PI
0.414 1.199
+
C 0 SiF.
u.414
( 0 )o.54!1
n*o
v. c. .M.
+ 5C Pa + 5C0 ++c3C= =zcoFe* + 8CCJ
PeOa FclOi COI
~
o.040
x
~~- -~~
~
~
o.226 =
... ...
0'0.14
... ...
1.unii x 0 423
~
...
u:bir ...
(01
~ . . ... . . ~ cnniiow 11*or;rnr>risi
0.072 0.096 a.nn9
... . ~ .
. .
. .
~. ... ...
U.lKU
...
... n:ois
...
..
...
.~-S,.ro .*x,i.,x,r
,
...
r-
...
~ . . 0:096
...
0:47,
... ... ...
___ PlOS B*L.,*cE:-~--
... ...
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... 0.00Q
0.423
n.m
( 3 ) The ~J~W'IIWUS may be wliected in elemental state, creased by increase of temperature iiritil sucli iircrciise ei'leat,,. followed by a step ill wlrich the 0nid:ition and hydration are pera statc of physical change by brillging tile otilcr P*06arid carbon into further contact. This usually r(:- fi,rmcil in r:ont,inuity.
The C a M i O I ratio may vary considerably frolri the 3 to 2, as shown, but this combination is known to result in satisfathory operation. As above statcd, this reaction is involved in substantially every thermal process that has tiad any degree of successful employment. Where ptiosplioric acid is the desired final product, there rmrst be siibseqiierit operatioils d reoxidation and hydration. The oxidation fiinetion is usually written Pz 5CO 10 ( 0 ) = €'&a 5 0 1
+
+
+
control, since the synclironisinl: of several steps for continuous operation demands marc careful design in the solution of prolAems arising than in control of tire individual step functions. However, the disconnected processes involve greater uttendant costs and processing losses than connected or continuous processes. The conversion of a process from separated or intermittent stage operation to one of continuity usriallv involves ovcrcomine" manv difficulties in desinn., etinstruction, and operation before successful outcome resnlt,s.
Ti
