ning u c h u n s o d a ishlash j ar a yoni ikki b o s qi c h d an iborat: 1 chi bosqi ch
os h tuzi e r i t m as i n i a m m i a k bilan t o ‘yintirish, 2 c hi bos qi ch t o ‘yi ngan
e r i t m a n i C 0 2 b i l a n ishlash. N a t i j a d a c h o ‘k m a g a N a H C O , t us ha d i .
S o ‘n gr a uni fi lt rl ab aj ra t ib ol in a d i . Q i z d i ri l g a n s o d a n i olish u c h u n
N a H C 0 3 160— 180°C d a r a j a d a p a r c h a l a n a d i :
2 N a H C 0 3 = N a 2C 0 3 + C 0 2 + H 20
(3)
Bu j a r a y o n m a x s u s kal si nat si ya b o N i m i d a keti b, ajralib c h i q q a n
C 0 2 k a r b o n i z a t s i y a b o ‘l i mi ga y ubor i ladi .
S a r f b o ‘l gan a m m i a k n i q a y t a ishlatish m a q s a d i d a (2) reaksiya
b o ‘y i c h a hosi l b o ‘lgan N H 4CI o h a k suvi b il an p a r c h a l a n a d i :
N H 4C I + C a ( O H ) 2 = 2 N H 3 + 2 H 20 + C a C I 2
(4)
Ajralib c h i q q a n a m m i a k gazi b i r i n c h i b o ‘l i mg a, y a ’ni e r i t m a n i n g
a m m i a k bilan t o ‘yint irish b o ‘limiga qaytarilib yuboril adi. O h a k sutini
e s a o h a k t os hi kuydi ri lib hosil b o ‘lgan o h a k suvi b i lan s o ‘ndiriladi.
C a S 0 3 = C a O + C 0 2
(5)
C a O + N 20 = C a ( O H ) 2
(6)
O h a k t os hn i kuydirish natijasida hosil b o ‘lgan C 0 2 a m m i a k bilan
t o ‘yi ngan e r i t m a n i ishlash u c h u n ikki nchi b o ‘lim kar bonizatsiya b o ‘li-
m i g a yuboriladi. Solve usuli bil an s oda ishlab ch i qa r ish j ar a y o ni o p e-
ratsiyalarining bir-biri bilan b o g ‘liqligini 10. 5-rasmda k o ‘rish m u m k in .
S o d a ishl ab c h i q a r i s h t ex nol ogi yas i osh tuzi e r it m a s i t a y yo rl a s h-
d a n b o s h l a n a d i . O s h tuzi e r it m a s i turli tabiiy a r a l a s h m a d a n t oz al a -
nishi ker ak. E r i t m a d a kalsiy va m a g n i y t uzlar i b o ‘lishi m u m k i n .
N H ,
NHj+COi
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