b ila n fo s fo r k islotasini ajra tib olish m u m k in . S h u n in g u c h u n h o z ir
ishlab c h iq a r is h d a sulfatkislotali ekstraksiya n o m i b ila n ad a b iy o tla rg a
k iritildi va fo sfo ritla rn i sulfat kislotasi bilan p a r c h a l a s h usuli y a g o n a
usul b o ‘lib k e lm o q d a .
F o s fo ritla rn i sulfat kislotasi bilan p a r c h a l a s h d a v r id a , asosiy k i m
yoviy j a r a y o n d a n ta s h q a r i, fo sfo ritn in g ta rk ib id a g i a r a l a s h m a l a r h a m
re ak siy ag a k irishadi.
C a M g ( C 0 3)2 + 2 H 2S 0 4 + (n - 2 ) H 20 = C a S 0 4H 20 + M g S 0 4 + 2 C 0 2
A120 3 + 3 H 2S 0 4->A12( S 0 4) 3 + 3 H 20
F e 20 3 + 3 H 2S 0 4-> F e 2( S 0 4) 3 + 3 H 20
C a F 2 + H 2S 0 4- > C a S 0 4 + 2 H F
4 H F + S i 0 2-» S iF 4 + 2 H 30
3 S iF 4 + 3 H 20 - » 2 H 2S iF b + H 2S i 0 3
F o s f o r itn in g sulfat kislotasi b ila n p a r c h a l a s h n a tija sid a k a tta m i q
d o r d a c h o ‘k m a -g ip s hosil b o ‘ladi. C h o ‘k m a n in g ta rk ib id a o z m i q d o r
d a fosfor b irik m alari b o ‘lgani sababli c h o ‘k m a «fosfogips» deb ataladi.
E F K n i n g ish lab c h iq a r is h ja r a y o n i n i q u la y j o r i y qilish u c h u n c h o ‘k-
m a n i yirik k rista lla r h o lig a , y a ’ni o s o n filtrla n a d ig a n h o lg a k e ltirish
lozim . Bu a p p a r a tla r va texn o lo g ik rejim larini t o ‘g ‘ri ta n la s h n i ta q o z o
q iladi. M a ’lu m k i kalsiy sulfati u c h xil b ir ik m a hosil q ilishi m u m k in :
s u v s iz C a S 0 4 — a n g i d r i d , C a S O 4 * 0 , 5 H 2O — y a r i m g i d r a t va
C a S 0 4 • 2 H 20 — d ig id ra t (gips). E kstraksiya d a v r id a bu b irik m a la rn i
u yoki bu h o l d a c h o ‘kishi t e m p e r a t u r a va fo s fo r kislotasi k o n s e n t r a -
tsiyasiga b o g ‘liq ( 3 . l - r a s m ) .
Ik k in c h i egri c h iz iq o s tid a kalsiy sulfati g ips s h a k lid a c h o ‘kib,
b ir in c h i eg ri c h iz iq y u q o ris id a
kalsiy su lfa ti, y a ’ni a n g id ritg a
t e g is h li. Ik k i eg ri c h i z i q n i n g
o ‘rtasi esa y a r im g id ra t c h o ‘k in -
d i s i g a m o s k e l a d i . S h u n d a y
qilib, kalsiy s u lf a tin in g tarkibi
t e m p e r a t u r a va P 20 5n in g e r it-
m a d a g i m iq d o rig a b o g ‘liq ekan.
Ishlab c h iq a r is h d a filtrlash oson
b o 'l i s h i v a te x n o l o g i k re jim n i
q u la y b o ‘lishi u c h u n gips k o ‘ri-
n ishida c h o ‘kad ig an rejim qabul
q ilin g a n .
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