Bu m e t o d b o ‘y ic h a su lfat kislo ta ish lab c h i q a r i s h u c h u n fo y d a -
la n iladigan o ltin g u g u rt gazi S 0 2 va suv b u g ‘lari m iq d o r i keng c h e g a ra
a tr o f id a b o ‘lib, d astlab k i g a z ta rk ib ig a va u n i t o z a l a s h u c h u n is h la
tilg a n usu lg a b o g ‘liq. O ltin g u g u r t v o d o r o d in i h a v o d a y o n d i r g a n d a
ga z S 0 2 m iq d o r i 13 h a jm % a tr o f in i tash k il qilad i.
F o sfo g ip sn i p a r c h a la s h reaksiyasi u g le ro d is h tir o k id a o ‘ta d i va
issiqlik sa rfla s h n i ta la b qiladi:
2 C a S 0 4 + С = 2 S 0 2 + 2 C a O + C 0 2 - 5 6 6 ,2 kJ
A lu n itla rn i qaytarish reaksiyasi quyidagi te n g la m a b o ‘yicha a m alg a
o sh a d i:
K 2S 0 4 • A12( S 0 4) 3 • 2A120 3 • 6 H 20 + 0 , 5 C 2H 4 =
3 S 0 2 + 3A120 3 + K 2S 0 4 + 7 H 20 + C 0 2
Bu h o l d a g az d a S 0 2 m iq d o ri 75 h a jm , % yetishi m u m k in . O lin g an
ga z h a v o b ila n siy ra k la sh tirila d i va k o n t a k t u su li b ila n sulfat kislo ta
o lish g a y u b o rila d i. K aliy sulfati
0
‘g ‘it s ifa tid a , gil t u p r o q , A l20 3 esa
a l u m i n m e ta lin i olish u c h u n f o y d a la n ila d i.
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