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1 of 58
1
2
3
4
2
1.
2.
,P, K
18

N
18 :
2NH g



H SO aq
NH4 2SO4 s
NH

CO

NH CO
NH4 2SO4

CaSO4
CaSO4  
s
CaCO s
N2

H2
0C

NH3

N g
92 kJ

3H

g  2NH

g
2CH
4H

g
(g)

O

g  2CO g
CH g
H2 g

H O g  CO (g) +
CO

H
CO g
H

H O

g  CO

CO g
H2CO3
CO

H O   H2CO3

g
H2
H2

CO2

NH3
H CO
Contact process
S
O2
SO2
SO3
H 2S 2 O 7
S s

2SO g
54 kJ
SO g
aq

O

g  SO2 (g)

3O
H SO

g  SO3
aq  H2S2O7
H SO aq
H O l
H2S2O7 aq


NH3
CO2
NH3
CO2
2NH3 (g) + CO2 (g) 
NH2 2CO (s) + H2O (l)
P 2O 5

–
P 2O 5
c

-

2(CaF2. 3Ca3(PO4)2) + 5SiO2 +
6Na2CO3 → 12CaNaPO4 +
4Ca2SiO4 + SiF4 + 6CO2
1
3Ca3(PO4)2
dm3

(CaF2.
4 - 5 mol /

H3PO4
CaF2. 3Ca3(PO4)2 + 10H2SO4
→ 6H3PO4 + 10CaSO4 + 2HF
H3PO4

2

(
Ca(H2PO4)2
CaF2. 3Ca3(PO4)2 + 14H2PO4 →
10 Ca(H2PO4)2 + 2HF
Ca(H2PO4)2
CaF2. 3Ca3(PO4)2 + 7 H2SO4 + 3
H2O → 3Ca(H2PO4)2 + 2HF +
7CaSO4
Sio2

HF
H 2O
Sio2

SiF4
H2SiF6
H2SiF6
MgO

HF

MgSiF6
HF + Sio2 → H2SiF6 +
2H2O
H2SiF6 + MgO → MgSiF6 +
H O
HF

HF
Na2CO3 → 2NaF +
H2O + CO2
HF + CaCO3 → CaF2 + H2O
+ CO2
K 2O
(KCl∙MgC12∙6H2O)
KCl∙NaCl)
KCl)

K2SO4)
KNO3)
90

KCl

KCl

NaCl
NaCl
KCl
KCl
K2SO4∙2MgSO4)
50
KCl

K2SO4
K2SO4∙2MgSO4 + 4KCl —>
2MgCl2 + 3 K2SO4
KCl

NaNO3
KNO3)
KCl + NaNO3 —> NaCl + KNO3
primary nutrient)
MgSO 4 .7H 2 O
triple supper
phosphate (TSP)
blend)
mixing)

bulk
mechanical
bulk blending
bulk blending
granulation)

steam
filler)
fortilizer additive)
NH4OH H2SO4

H3PO4
•

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