B irin c h i v a ik k in c h i b o s q ic h te n g la m a la r i y i g i n d i s i n i o lsak q u yi-
dagi y ig ‘ind i t e n g l a m a l a r c h iq a d i.
C a
3
( P 0
4)2
+ 2 H
2
S 0
4
- » C a ( H
2
P 0
4)2
+ 2 C a S 0
4
2 C a
5
( P 0 4) 3F + 7 H
2
S 0
4
+ 3 H
2
0 ^ 3 C a ( H
2
P 0
4)2
• H 20 +
+ 7 C a S 0
4
+ H F
Y u q o rid a k o ‘rsatilgan te n g la m a la r b o ‘yicha b irin c h i b o sq ich d a 70%
ga y akin fosforit, ik k in ch i b o s q ic h d a esa qolg an 30% p a r c h a la n a d i.
F o s f o r i t l a r m u r a k k a b ta rk ib g a ega b o ‘lgani sab a b li, b ir v aq td a
ta rk ib id a g i a r a l a s h m a l a r h a m reaksiyaga k irish a d i. M a sa la n :
C a , M g ( C 0
3)2
+ 2 H
2
S 0
4
+ (n - 2 ) H 20 = C a S 0
4
• n H 20 +
+ M g S 0
4
+ 2 C O , K
2
0 N a
2
0 - A l
2
0 3 - 2 S i 0
2
+ 5 H
2
S 0
4
=
= N a
2
S 0
4
+ K
2
S 0
4
+ A 1
2
( S 0
4)3
+ 2 S i 0
2
+ 5 H 20
C a F
2
+ H
2
S 0
4
-> 2 H F + C a S 0
4
H o s il b o ‘lg an H F q u m bilan re ak siy ag a k irishadi.
4 H F + S i 0
2
= S iF
4
+ 2 H 20
S iF
4
g a z in in g b ir qism i g a z fa zasid a H F b ila n reaksiyaga kirishib
k r e m n e f t o r i t k islo ta sin i hosil qiladi.
S i F
4
+ 2 H F = H
2
S iF b
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