ELECTROMETALURGIA-1 [Sólo lectura].pdf
Transcript of ELECTROMETALURGIA-1 [Sólo lectura].pdf
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D. Gead Cfee Ma
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Idcc
Tedca EeccaCca Eec caPce Ee
Pce FadEec bec de CbeEec efac de Cbe
Nea Tedeca
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.
Sg XVIII : Nace de a eecca(a fe) Gaa Va
Sg XIX : Seaac ee Eecca Igea Aca
: Seaac ee Ica Eecdca: Pea aee aa Eecefac de Meae
S : P P E
C (1915)
T EP (C)
: Pea Refea Eecca a Nddece Affee
DaFaadaDae OadHeKacNeGbbDe
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Paa de eec ac de 1850.Fee de de:
ageda de 8 Wc
Ceda
ea Eg eaee de
1860
Dcde ceda
eecd eceda
ea Eg e
aee de1860
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:
C .
8 A1=10D
D A
10 1012 4 =
De de a ea 109 c De de 1011c
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Paca Sb Maa, g Caga Caga, C Ubcac
P , H+ 1,6729 1027 +1 +1,601864 1019 N
N 1,6751 1027 0 0 N
E 9,1085 10 31 1 1,601864 1019 C
Eeccdad
E f de caga ecca a a de cdc ce a ceeecca. E c aec, e ag a f de aga e cc
dc (caea de aga).
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C :
,
.
. C .
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A (A): , , . ( C/).
Cb (C):
. N , 1,610 19
.
V (V): , , . ( /A).
O (): (0 C) 14,4521 , 106,3 , (/A).
W (W):, . ( /)
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" () ()
".
:
( )AEI= ( )IE = ab,
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(3), :
1. (, , , .)
2. (, , , .)
3. (, , ).
C CcUa cdc de ccc eda deeada a
eae ccaee a eeca de c de cc
=0
EI
EI= E a cdc deccc a cee
ede a afaee a.
S R=0 , ece
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Ga Ld Sd
SLIDO ;
LQUIDO , ;
GAS , .
E . S , , , ,
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D / D
Dc
ca (ea)
cdce a eeccdad
Dc+Dcac
e (caga + )
cdce a eeccdad
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: , , ( ).
: , , , ,
:
1. C: ,
,,,, .2. A: ,
, ; ,,
.
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: C / ( , , , , .) . ( /)
,
Eecd Ceda Eec(Pce Fad) Ceda Gaca(Pce Eae)
C () (+) (+) ()
Padade de eecd aa ce deeec ceda gaca
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187919101913
19241947
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,
()
(). ,
(
).
:,
E = M E = M . ,
:
= MM = 2M2 =0,
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:
.
( ). ,
, ( ) .
.
(.
).
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+= + )(
M
EE
MM
+ +
+
+
+
+
E= , V
E0 = ,Vaaaa(M
+) = (+)
aaaa(M0) = ()
)( M
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(a) E f de eece a dede e eecd de dge (d) a
ec (cd) e e ca de cbe.(b) E cab, e e ca de c e f e aca e eecd dedge (cd). E dca e e c ee a edeca a aaa ead dad e e cbe.
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( ) ( ) FF + 222 +1,690
( ) ( ) AA 33 + + + 1,498
( ) ( ) PP + + 22 + 1,200
( ) ( ) ( ) OHHO 22 244 ++ + + 1,229 Nbe
( ) ( ) HH ++ + 22
2 22 + 0,9194
( ) ( ) HH 22 + + + 0,8537
( ) ( ) AA + + + 0,799
( ) ( ) HH 2222 +
+ + 0,788
( ) ( ) CC 22 + + + 0,341
( ) HH 21+ 0,000 Refeeca
Seeacc Pecae de dedcc E aa
ce 1 Na a 25 C (V).
( ) ( ) PP 22 + + 0,126
( ) ( ) 22 + + 0,136
( ) ( ) NN 22 + + 0,250
( ) ( ) FF 22 + + 0,440 Ac
( ) ( ) 22 + + 0,762
( ) ( ) 22 + + 0,628
( ) ( ) AA 33
+ +
1,662( ) ( ) MM 2
2 + + 2,363
( ) ( ) LL + + 3,045
Eecd Eda de Hdge (eda)eacad c e eecd de
cbefa de cbe 1M (deeca).
Td ecae e efee a E.N.H.La eece dea 1 M
La eece c be aaeL gae e ba e de 1 afeaCae ea eea ce ecca
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H()
P 2 ,
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S ():
H ( ): ,
+ +++ HBOHA 2Reacc geea de a eece dada A a a eece edcda B
C2+ + 2 C0
V ( ): H+ OH, HCCO3 + 2 H+ C2+ + CO2+ H2O
D ( ): , HC2O + 2H+ + 2 C0 + H2O
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S ():
H ( ): ,
C2+ + 2 C0
V ( ): H+ OH, H
+=
+
)(
)( 22
34,0
C
C
F
E )( 203,034,0 ++= C E
CO + 2H+ C2+ + H2O
D ( ): ,
HC2O + 2H+ + 2 2C0 + H2O
+=
+
2
)(
2
)()(
0
2
2
47,0
C
HOC
F
E HE 06,047,0 =
6,735,363.1
420.10
35,363.1
0
=
=
= G
K
=
+
+
2
)()(
)(
6,7
2
HCO
C
8,3=H
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P CH2O.Eece ()
H O2 = 56.690 /
H+ = 0 /
OH
= 37.600 /
C = 0 /
C + = 12.000 /
C2 +
= 15.530 /
C O2 = 35.000 /
CO = 30.400 /
C OH = 85.300 /
1. = 25 C2. A = 13. P = 1 .4. A = 15. N :
( )C C OH CO H+ ,
2 2
2
22CO =
43.500 /
CO H2 = 61.420 /
C2+
COG CO22
O CC2O
C
Cae Mca ea Ae H
D H
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E. (2.73): OHCHOC 22 222 +++ +
HE = 06,047,07 (ENH)
E. (2.76): OHOCHCO 22222 +++ +
HE = 06,067,010 (ENH)
E. (2.79): 22 CC + + 34,013=E (ENH)
E. (2.81): OHCHCO 222 224 +++
+
HE = 12,051,115 (ENH)E. (2.85): ++ +++ HOCOHC 222 22
2
Dagaa CH2O
HE += 06,020,019 (ENH)
E. (2.86): ++ ++ HCOOHC 222
9,3=H
E. (2.89): OHOCHCO 2222 3262 +++
+
HE = 18,056,223 (ENH)
E. (2.91): + ++ HCOOHCO 2222
H = 16
I. H H+ + 12 2 ( )ENHE 0,0 =
;06,0 HE = H 12 =
II. OHHO 2221 22 ++ + ( )ENHE 23,1=
HE = 06,023,1 ; O 12 =
Dagaa de H2O
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Dagaa de ea C 2
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(>50% ), .
,
. , .
, , .
A ea de ea ace dagaa de TeH ee a cca de ga ada a a a de e eacce
eca de dc / dec de eae
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C F H O 2
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F
IPMM
=
E e de dc de a eec edecaee ca a a cadad de cee e
cca a ceda eecca
M = M ()PM = P M (/) = N , (/)I = I (A) = T ()F = C F (96500 C/)
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O R+
N
A
N
A
O
== R11
ONF = I
=
N
AF
AA
I O
=
== 11
F = (A/2); (A/2); (A/2);
(C/2) ...
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CONTROLES CINETICOS
Meca de afeeca
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D ,
CONTROLES CINTICOS
CDJ =)(
Df:
=
E
FDCJ
22
)(Mgac:
Tafeecade Caga:
=
0
F
F
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E = (V)E = (V)E=0 = , . P (V) = (A/2)
= = =E E 0
Sbeeca
Paac
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CC
220 + +
C Tafeeca de
Caga (CTC)
a> c > 0 ce adc
a< c < 0 ce cadc
a= c = 0 eb edc
E e eb TERMODINMICO a= c = 0
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=
0
F
F
= Dedad de cee (A/2)0 = Dedad de cee de ecab (A/2), = Cefcee de afeeca de caga adc cadc = Sbe eca (V) = Cae de gae (8.314 J/ K) = Teeaa (K) = Caga afeda (e/)
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=
0
F
F
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:
=
DENSIDAD DE CORRIENTE DEINTERCAMBIO
OO ++ eeRedRed
=
F
= 0
=
EFF
0
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) A ( )
>0
V 100 V
= F
C
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DENSIDAD DE CORRIENTE DEINTERCAMBIO: Seg Tafe
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) A ( ) ( 1 + )
SOLUCIN APROIMADA DE LAECUACIN DE BUTLER VOLMER
( ) RTF+= 0
<
F
0
=
1
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Mea 0 (A/2)
P 4,0101R 3,2101
P 5,0100 1
Vae de cee de ecab 0aa e ea:22
1 HH ++
SIGNIFICADO DE LA DENSIDAD DECORRIENTE DE INTERCAMBIO
Ca de eacceeecca
, N 6,3102A 2,0102F 1,6102A 4,0103C 4,0103W 4,0103
T 1,310
3
C 4,0104S 6,3106Z 3,2107
e ed H2SO41M a 25 C, aa dfeeeba ec
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REACCIONES MULTIPASO EN SISTEMASELECTROQUMICOS
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acda cea de a cedad de eca.
Ee de eacc MULTIPASO:
B + e C (Pa 2). .. .
D + e E (Pa )(E +e F) (d e ee ece)F + e G (Pa ). .Y + e Z (Pa )
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COEFICIENTE DE TRANSFERENCIA DE
CARGA ANDICO
=
= = N
() = N
= F ; = 1 ( ) = 0 ( ) = F =0,5
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COEFICIENTE DE TRANSFERENCIA DE
CARGA CATDICO
+=
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S :
=+
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,
: =1 =1
COEFICIENTE DE TRANSFERENCIA
DE CARGA
= 1 0,5= 0,5
+ = 1
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CONTROL
POR
DE
MASA (CTM)
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CDJ =)(
=
C = , /3
= , D = , 2/
= ,
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CC
C= C
()C= C
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LEY DE FICK EN ELECTRO QUMICA
( )
D
CCDF
=
D = D , A/2
= N F = C F, 96.500 C/D = C , 2/
Cb = C , /3Ce = C , /3
= E () 0,1 (, 25C)
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DENSIDAD DE CORRIENTE LMITE
C= 0 D (
D)
L
DF =
D=
=
S,
L = Dedad de cee e (A/ 2)
= Cefcee de afeeca de aa (/)
S (C) , L .
S ,
(), L .
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S :C O + = R (), BV.
CONTROL MIXTO: TC+TM
TR
F
TR
F=
0
0 = D O R
c = S
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S
, . E ,
:
CONTROL MIXTO
= C Cb = C C = C
C
C=
R
R+
O
+
0
0
O CC
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E , :
TR
F
C
TR
F
C
=
O
R
R0
O
CC
CONTROL MIXTO
E ,
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D ( F), :
CONTROL MIXTO
L : C a : c :
TR
TR
= L
L
L
L0
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D , ( ).E .
CONTROL MIXTO
TR FTR F
+1
TR
F
TR
F
=
L
0
L
0
0
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L (CM) :
CCCMCM
111+=
Cca eecca ba c .
R F CTM .
BV CTC .
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Cca adca cadca ba c
P ,
, :
0
L
=
)(0
0
F
L
L
+=
0
L+
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P (. )
22
2
0'
20
'
FF
F
C
++
+
+
=
Cca c cceace eca aa acaeecac.
P (. )
)(22
2
0'
20'
FF
F
FF
F
+
=
++
+
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Paa eec ccead
+
=++
++
+
00
22
22
2
)( 00'
20
'
CC
CC
CC
C
EE
FF
F
++
=
++
++
++
+
22
33
22
2
)( 00'
20
'
FF
FF
FF
F
EE
FF
F
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CDCJ =
: e e ca de ecdad de fdC : e a cceac de a eece
C
C
=
2
2
D
+
=
2
2
++
=
+
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Cafcac de a deedeca de Le fc de a edade de fd de eac
Rge DfaCec
E : R=
)
S = N SRe = N RSc = N S
33,08,0R023,0 =
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Sed Red Scd33,08,0
023,0
=
D
D
= C (/) = L ( ) ()
= V (/) = D ( / 3) = V ( / )
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S :
L F =
S :
33,08,0
023,0
=
D
DCF L
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P L
:
33,08,03/28,08,01
C1222122
=DC L
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D (),
1/62/1
D3= 1/3
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C M
=
E
FDCJ
22)(
Ca de cceac
Ca ecc
Ca de ecdad
C M
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C MS
Fea de Agegac
Dcac de ae
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La ecdad de ae de aca eecada cabaaa acaa a cae, e ga a a ecdad deeec. De de ee ed (e ede e c) e
ede bea ge eaca.
C E
E
C ee a caa de df e a efce de eecd, eee de ea caa eaece cae cad e e e eadeaca. La eece eecaca eada aa ea caa cecc, e ae a a de ea e df,
ea e a gac afeca a a adad de a c
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La ecdad de a eacc eecdca , cgee, aedad de a cee e cca e cc ee ecada a cadad de aca eecaca be aefce de eecd. E a dade de eecd, aeece eecaca e aada df gac, a a cee a,, e a a de a
C D M
MD +=
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Ie ec ded Ie ec acead
C D M
Decc de a cee e Df Mgac
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A ea e eeca de eec e e aa cbc de ae de aca eecaca gac, c e e fca e aaeaec de ea eecc, ade, efaca a cdcdad de a dc a d a
C M
E S
eeca de a ca eecca
+ += 2442 2 OHOH+ += 442 HOHOH
+ += 244 OHHO
K1
K2
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C
Reeca Cdcaca 1A
=
G=
G
==
=
Cdcdad
C M
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C M
Kac de: CA 0
=
: e a
C : e a
A : e a a deea
C M
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Ca 0+ A 0
Kac :
000 ++ +=
C M
H+
N+K+
Z2+C2+
349,650,173,5
105,654,0
OH
CB
SO42
NO3
199,176,4
78,1
160,071,4
C
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C
aa d de aga
CINTICA POR
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CINTICA POR
CONTROL MIXTOL (CM) :
111
+=
R F CTM .
BV CTC .
CCCMCM
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Eee cca adca cadca ba c
P ,
, :
0
L
=
)(0
0
F
L
L
+=
0
L+
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REPRESENTACIONES
GRFICAS
DE LA CINTICA
ELECTRO QUMICA
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S : , , , , .
L , EN LAINDUSTRIA DEL COBRE INTENSIOSTTICOS
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B
S ( : )
E (WE)
C (CE)E (RE)
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E ( )
( )
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( + )
CURVA DE POLARIZACIN
S
CC 220 + +
E
( ) S ( ) /
( E)02 2 CC ++
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UTILIZANDO UN CUADRANTE
POSITIVO
CC 220 + +02 2 CC ++
S E
E
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LINEALIZANDO LA CURVA CINTICA
S
CC 220 + +02 2 CC ++
E
E
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DIAGRAMA DE EVANS
S E
E T:
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E CONTROL MIXTO eeea a acee CTC CTM
D d E
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Dagaa de Ea aa a eaccecae de EW de Cbe
02 / CC +
22 / OOH
E CE , OHE 2, AE
E
C ,0
OH 20,
D d E
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Dagaa de Ea aa a eaccecae de ER de Cbe
PASIVACIN
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E a dc bca de a cee de dac de eecd caada a fac de a caa efca dea de dc de eacc (c). Fe
C
N
T
Pb
PASIVACIN
Ace Idabe:
Aec (Ba)
A
Meae ec
Ace dabe
304 18C 8N
316 20C 12N
Sf de C
S eae aca acae eea ag gadde adad
ELECTROCATLISIS
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Aceeac de a eacc eec ca debda a acc cdc de eecd. N e aeca e ee gfcgeeTab e a dc de eega eceaa aa ea a caba eacc eec ca a ecdad cae. Se bea e egfc gee
0
/2
CC +
22 / OOH )(P
22 / OOH )( 2O
22 / OOH )( 2OI
)(PO
CE , 4,AE4E 2,AE
2E
3,AE
3E1,AE
22
1E
OHE 2,
0
POTENCIAL MIXTO
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Y ,
Sea eeS :
111 R EO +
222 R EO +
, :
Peca M (EM)
NO ES eca deeb edc, ES
CINTICO!
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P , :
= S, A= A
1
==
M
TIPOS DE POTENCIAL MIXTO
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)
)
)
TIPOS DE POTENCIAL MIXTO
)
)
)
) .......
Ceeac de C Dagaa de Ea
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Ceeac de C. Dagaa de Eafcad
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La cae eace e a eeceaga de cbe :
OPERACIONES ELECTRO METALURGICAS
ec e ac a a, ce a
Eec bec (fada, ceda)
Ceeac (eea, a)
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1. :M , ,G, D .
2. : ;C : , ; : ,, .
. , C , E , H , , C,
, A , .
4. :P , C ,
, C.
5. :, P, H, , , C : ,
Pcae ae de c e ce
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eecc
Pdcc aa, /:
Rede efceca de Cee, %: 100F
IM
M=
100DM
=
M
Rede ec,%:
C eecfc de eega, K/:
Rede eegc, %:
000.1
M
I=
D
I
E
E
E
===
Pcae da de eac e ce eecc
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Cee Iea (Aee) : Te de ceda (V) : Te (a, da) : Maa deada (eada, Kg) : Ve de eec (3) :
Pcae da de eac e ce eecc
e ce a :Cceac de eec (g /L) : CSefce ea eecdca (2) : A
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L ER EO , , . H +1 ( ). P ?
V A.: 6 10 3
C : 30 60 ( = + 1) : 1 1
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E + .
, .
E 2050 L/ ER C 200450 L/ EO C.
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, .
D (I) ( )
(). E I .
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L :
. 2. L 3. L 4. L
C TC C TM.5. L
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S :
P: B , ., ,
. S: D , TC.
T: R , TM.
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S :
aa
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Face e afeca a dbc deceeDbc aa (Sbeecae ae): Lageea a cdcdad
Dbc ecdaa (Cbeeca de acac
ae): Ceca de eecd
La geea afeca a dbcaa de cee. Sbe d e
ea cecaa a bde de eecdDbc ecaa (Cbeeca de acac de af.de aa ae): Cca gadee de cceac.
ede abe bea de fdad.Ua aa cdcdad e e eec
faece a geedad e adbc ecdaa de cee.
L ad gc ede ea
a fdad.Pede c efec (e.Fac de dge, e eeeagegad de agee de ad aa
faece e deede de abba)
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L :
) P (. 99,99% C
)) P
(. ,, )
) P (. )
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:
A
:
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Efec e e de cadc
S
S
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FI : F
BR: B
Tga de de cadc
FT : F
UD: U
W
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Cafcac de de e fc de:
+MC / ( )L / a edad de bc,
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C :
?
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E , :
U ()
, ( )
U ( )
ELECTRO OBTENCIN (EO) DE COBRE
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L EO (EW = ) / :
ELECTRO OBTENCIN (EO) DE COBRE
Lac Eacc ee (SX) Eec bec
L C , SX .E C 99,99 %
LAY OUT TPICO DE PLANTA DE
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SXEO
OU CO NELECTRO OBTENCIN (EO) DE COBRE
a fa
ELECTRO OBTENCIN (EO) DE COBRE
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C 316, 316L, 317L 3 .
P ( > 99%)CS S () 69 .
R ()02
2 CC + +
R ( O2)
+ ++ HOOH 22221
2
EHOCOHC 89,02 )()(2210
)()(22
)( =+++ ++
ReaccGba
ELECTRO OBTENCIN (EO EW) DE COBRE
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E: CSO4 H2SO440 /L C, 180 /L
I: F (1 ), M, C
ELECTRO OBTENCIN (EO, EW) DE COBRE
A: CSO4,
N (O2+ )
A
2,2
/350250 2
=
=
ELECTRO OBTENCIN (EO, EW) DE COBRE:E
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E A: , C(0,06
0,10%),(6,014,0%),(0,060,10%),
.
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FLOW SHEET ELECTRO OBTENCIN EO DE COBRE
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Dagaa de Ea aa EO de C:Reacce cae ecdaa
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Reacce cae ecdaa
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Te de ceda e EO de C
U= E+ + + IR + PS
R = (1/X )(/A)
E = . ., V= , V
I = , AR = (, ),
PS= , , ., VX= , 1 1
= , , A = , , 2
Te de ceda e EO de C
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Te de ceda e EO de C
E = E+ + JR = IR + PS
U= E + JR
U: T
PROBLEMAS OPERACIONALES EN EO DE C
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PROBLEMAS OPERACIONALES EN EO DE C
Peeca de Iea e e eec: Fe, M, CAdAae de gcNeba cdaC de cd eaeeC de d de Pb
PROBLEMAS OPERACIONALES EN EO DE C
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PROBLEMAS OPERACIONALES EN EO DE C
Peeca de Fe e e eecRedcc Fe+3 + e Fe+2 edce a efceca de cee cadca aa ae de a cee deada a dea cbe.
La efceca de cee e: CC
==
FC
De a eaa: 1 g/L de Fe e eec de EO (0,2 g/L de fe 0,8g/L de fc), e dce a efceca de cee cadca de 95%.
Cceace ae de Fe dce baa daca e a
efceca.++ > 32 FF DD ++ < 32 FF CC
Sc: Ica e de edcc
PROBLEMAS OPERACIONALES EN EO DE C
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E M M+2 EO C.
S (MO4)
(MO2).
Peeca de M e e eec
E ( E ). L , .
E M , ""
, , .
Sc: M (10 30 ).
PROBLEMAS OPERACIONALES EN EO DE C
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C de cd eaee
L cd eaee de ace dabe (316, 316L,317L) aacad ae, e. F, C, ec .
E efec e cada (g) de cd e eg caaadeeca de cd de cbe a cd eaee (dc
a ae ce ceca e a e a e ec a e , ac e dfc e deege , e cae, dced a faca dea a de ace.
Sc: aee a cceac de c ba20 e e eec, (ea eaa de aad e SX)
P e ce e cd?
PROBLEMAS OPERACIONALES EN EO DE C
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1000
1100
1200
)
Efec de a cceac de C
600
700
800
0 20 40 60 80
()
(/
P P A I 316L 165 /LH2O4 40 /LC2+, 40 C
PROBLEMAS OPERACIONALES EN EO DE C
f SO
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1040
1060
1080
/)
Efec de a cceac de H2SO4
1000
150 160 170 180 190
(/)
(
P P A I 316L 10 C 40 /L C2+, 40 C.
PROBLEMAS OPERACIONALES EN EO DE C
Ad
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Ad
L EO C CSO4 ( : , , .).
E 100 V.
L ( ).
P: . A ( )
( ).
Sc: .
ELECTRO ADSORCIN DEL ADITIVO GUAR EN EL CTODOELECTRO ADSORCIN DEL ADITIVO GUAR EN EL CTODO
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Aga
Nea aga
+
+
Cd de cbe
+
+
+
+
PROBLEMAS OPERACIONALES EN EO DE C
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PROBLEMAS OPERACIONALES EN EO DE C
Dede a eac de SX ee abe aae de gc aeec de EO. Ee gc dce bea de cadad
Aae de gc
Sc: a) a "ceda caege" (de acfc) eecbe e f de eec eee de SX ccea egc, ad e eec.
b) f aa eaa e aae.c) ceda de fac.d) Pce de dac
PROBLEMAS OPERACIONALES EN EO DE C
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PROBLEMAS OPERACIONALES EN EO DE C
Neba cda
E bbe de ge, eee e de a eaccadca ca e d de , aaa /eca ga de eec aca a afea. Ea gacee c eecca dde e ee cd fcccead, cde e a deada "ebacda" (acd ).
La eba cda dce caee beaea e eade c de e.
PROBLEMAS OPERACIONALES EN EO DE C
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PROBLEMAS OPERACIONALES EN EO DE C
Neba cda
Sce:U de caa de gaeRecb a ceda (e. c a, ce c)
Ua ce gc eac e afeca aedade fca de a efa eecae (e. FC1100,aa de a), e abe be e efec de e cegc be a eec caac de cbe.
U de eade cea aeaeU de caaa de eacc caada
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COMPORTAMIENTO ELECTROQUMICO DEALEACIN PbCaS
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Eb E (VENH)+ PO 24
+ 24 OP 0,356
+ ++ HPOPO 42 4 OHOP 2242 ++
0,113
+
Vagaa AeacC
2 ,
+ ++ HPO 222 OHPO 2+ 1,107
+ ++ HPO 442 OHP 22 + 1,355
+ ++ HOPO 462 242 24 3 HPOPO + 1,468
+ +++ OHPO 24 242 OHPO 24 2+ 1,687
eacac
Cba: ESTRUCTURA SUPERFICIAL DELNODO
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800X
2000X
Mcgafa de aeac de, aada a 2.000VECSc 120 de cba.
Reeeac eeca de a caade c a dfeee ee
PROBLEMAS OPERACIONALES EN EO DE C
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E d de PbCaS ea e e ag aa, PbO2,(egd adcaee) dae a eac de EO. E
C de d de Pb
gfca e ecdad de c e eea.
A dce ece de cee e a aa e abead c de d c a a a a,acaada de caac de cd c .
PROBLEMAS OPERACIONALES EN EO DE C
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Caa: a ee a cee, e d dea de eaegd adcaee be efce e acaeeaee (eca ) a eacce:
+=
+
C de d de Pb
PbO2(caa eca) + 4 H+ + SO4
= + 2 e PbSO4+ 2 H2O
aba eacce dce fa (faac).
Ea eacc e ag a ee a baea cd(a)cccada (ab cecad c cabe).
PROBLEMAS OPERACIONALES EN EO DE C
Aaga baea Pb cd
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Aaga baea Pbcd
cccada
PROBLEMAS OPERACIONALES EN EO DE C
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C de d de Pb
A eada a de cee a a ceda, de deegd e ce a a ecdad ce( aa)aa e e eaaa. E ee ed e dce a
c a ac e e ec c , e eg caacaac de cd.
Sc: a ecfcade de ead daeece de cee, de aea e d e
ee adcaee egd.
PROBLEMAS OPERACIONALES EN EO DE C
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C de d de Pb
C e e a de dedad de cee de ceda e a eaca dae ece de cee aa ege d? Ha e bdade:
Tea de "aee ac": .
Pdce de d: 3 10 A/2.
Peba e aga aa: 70 A/2
( , ).
ELECTRO REFINACIN (ER) DECOBRE
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La ER de cbe e a a eaa e a ececa acadaa eae fad:
Eacc Ma Cacad Meda
COBRE
Fac F Ce PefacEec efac
E ER, d de cbe (99,5 %) e dee e
eec cd e dea (99,99 %) be cd.
Eece ce acac de cee.
F ee de ER de Cbe
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ELECTRO REFINACIN (ER) DE C
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( )
Cd: C d: . ( )
R
R ( )P
R
+ + CC 220
.
0%99,99
2 2 CC + +
0%99,99
0. CC
MOLDEO DE NODOS
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ESTRUCTURA DE SOLIDIFICACIN DENODOS
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1 2 3
1 2 3
Z 1 A E
Z 2 C E
Z 3 M C
CTODOS PERMANENTES DE ACEROINOXIDABLE
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CTODOS DE HOJAS MADRES O INICIALESDE COBRE
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ELECTRO REFINACIN (ER) DE COBRE
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E: CSO4 H2SO440 C, 180 , 60 C
I : A S B A .A: , ,
B : C, A, A, P, S,T, N, .
A
5,03,0/350260 2
==
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+
BARRO ANDICO2,0 g/
Ag, A, Se, A, Sb
40 45 g C++
CaTeaAe
Va
E. ecca
AgAg
SbSb
BB
AA
ER de C, Dagaa de Ea aca
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Te de ceda e ER de C
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Te de ceda e ER de C
U, ER= E+ + +IR+PS
0
= beeca, VR = eeca ecca,
I = edad de cee, AX= cdcdad, 1 1
dac= daca dcd, A = ea efca de cd, 2
Cdcdad de eec de ER2
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= D
F 22
X= cdcdad ecca, 1 1
c = cceac, /L = e de caga de
= a ,
COMPOSICIN DE NODO Y CTODO EN ER
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Eee Ad Ceca
(%)
Cd Ceca Gad A
(%)
C
O
N
Pb
99,499,80,10,300,0500,01
99,999( )
0,00070,0005
ASb
Se
Fe
Te
S
B
Ag
A
,00,0300,02
0,000,0300.001
0.0010.00300,01
0,0700.005
,0,00020,00010,00020,0006 0,00010,00040,0007 0,00030,00050.001
00.00001
ELECTRO REFINACIN DE CU
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A a cae
Ccc
Pcae de eecd
Ad
Lea de cac
Cceac de cd dec deeada
Ac ba e e
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A
E S2O3 , .
S:P ()
NOH 60C ( )
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C
H , .
C: C .
L ( ).
E
. E .
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C
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C
S: ("" ).
M .
E .
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P
L . S , , .
S: ;
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A
A , ( )
.
S:M
.
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L
S () (. ), , .
S:L .
O: .P:
.
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E(VENH)Z Z + P 0,76Fe F + P 0,44N N + P 0,25S H2SO3 C B F 0,14Pb PSO4 P B 0,12
+
, ,S + B FB B + B F +0,20A AO4
P E +0,30A2O5 B2O3 B F
SAO4S C2S P Se C2S I, B
A2STe C2T I, B
A2TAg A2S, A2T, AC, A P B +0,80A P B +1,50
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La ea e ecea e d geeaee a a fa dece da c fae eaada. L eee e ceea ea e ede cafca e:
, , , , .
E (, C, , , ).
(A, , B),cdeada a a ea ca aa e ce,
feca e a caaceca de cbe cadc, ade acedad e ee e de caa
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A, A, B , . , " ",
ASO
. A , ("") . / B , A, B .
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)()(4 AIIIAO CCK =
)()(4 AIIIBBAO CCK =
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A
:
[ ]A
.C B , :
[ ]S
[ ][ ] [ ]
2BS
A >+
d Cd Eec Saac
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C+2
Sb100% 0,1%
[ 0,3 g ]
[ 0,7 g ]
FIec. Ca
Sdecda
65%
Iefae
e e aSc
Caa
BbaDc
Sb
Ba 15%
P IP I
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E ER (
) :
1) L (L) . L.
C. .
3) L A/S , . A A/S, .
( A/S), .
PROCESAMIENTO DE BARROS ANDICOS
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PROCESAMIENTO DE BARROS ANDICOS
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PROCESAMIENTO DE BARROS ANDICOS
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.
/
99,99 %
99,99 %
.
TABLA COMPARATIVA
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B ()N
A
,E , W/ 400450 18002000P , 60160 7090C , L/ 20 () 200450
()
C, 810 47D, 1620 ?
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T
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ER EO: B
ER EO: B (2/)
EO: (2.000 W/)
ER EO: P ( A SO; C2)
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N
C
R M
R
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K (1982) 12 EO ER :
C . C C (. C)
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L H2O 1/2O2+ 2H+ + 2 (E0 = 1,23 VENH) (>0,6 V).
R H(), C () (), :
F2+ F 3+ + E0 = 0,77 VENH
E , .
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L
C 2+ + 2 C0 (: )
E ?
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R :
C + + C0 E0=0,52 VENH (:
)
C , ,
H2SO4.
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P: .
E , C+
C ( )
A ()
A/ ( )
U ,
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,
E D R(EDR).
) : . ..:
) : (), .
) : , .
3,3
Cab de eacc adca.
2,3
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H2O1/2O2+ H+ +2e
2
Z+2 + 2eZ0Fe2+ Fe3+ +e
Z2+H+
H+Pb Fe2+
H+
PIE O ++++= 2 P.I.I.I)/F(FE 23 ++++++= ++
S EDR
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Mebaaaca
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PIE ++++=
++= IIII
H ,
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EMEW (EE) A C (M, ENAMI).
E ( ) ( ) IO2.
E
, 500 1.000 A/2.
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GRACIAS Ha e e
e e ecea e a e
bea aba
Ha e e
a e e e eceaaba aa a
dece , ae baae e e e e