O’zbekiston respublikasi oliy va o’rta maхsus

AMALIY MASHG‘ULOT №1


MAVZU: FOSFORITNI PARCHALASH UCHUN H₂SO₄ SARFINI ANIQLASH, FOSFORITNI PARCHALANISH DARAJASINI ANIQLASH.
Fosforitni H₂SO₄ bilan parchalash reaksiyasi

Ca₅F(PO₄)₃ + 3,5H₂SO₄ =35CaSO₄ + 15 Ca(H₂SO₄) +HF

Masala
Apatit konsentratining tarkibida 51,5 % SaO bor. 100 kg apatit konsentratni parchalash uchun sarflangan 75% li sulfat kislotaning mikdorini aniklang . Sulfat kislotaning normasi – 98% stexiometrik xisobiga nisbatan .
Echilishi:
100 kg apatit konsentratning tarkibida 51,5 kg SaO bor .
Stexiometrik xisobiga nisbatan :
56 kg SaO parchalash uchun - 98 kg H₂SO₄ sarflanadi

51.5 kg - x

x=(51.5 * 98)/ 56 =90.125 kg (monogidrat )
Stexiometrik xisobiga nisbatan sulfat kislotaning normasi 98 % bulganda :
90.125 - 100%
x - 98%
x = ( 90.125*98 )/100 = 88.32 kg ( monogidrat ) sarflanadi
51.5 kg SaO ni parchalash uchun 88.32 kg monogidrat sarflanadi
75% H₂SO₄ aniklash uchun :
100 kg - 75 kg

x kg - 88.32 kg

x = ( 100*88.32 ) / 75 = 117.76 kg H₂SO₄ ( 75% eritma )
93 % H₂SO₄

100 kg - 93 kg

x kg - 88.32
x = ( 100 *88.32 ) / 93 =94.97 kg 93 % H₂SO₄

AMALIY MASHG‘ULOT №2


MAVZU: ODDIY SUPERFOSFAT OLISH TEXNOLOGIK XISOBLARI.
Oddiy superfosfatning tarkibida 21.4 % P₂O₅ um . bor va 20.3 % P₂O₅ sing . Xomashyoning tarkibida 39.4 % P₂O₅ bor . Xomashyoning parchalanish darajasini va 1000 kg xomashyodan ugitning chikish darajasini aniklang .
Echilishi;
Fosfaritning parchalanish darajasi kuyidagi formula asosida aniklanadi
K = C_sing/C_um C_sing - P₂O_{5 sing}
C _um - R₂O_{5 um}
K = (20.3 / 21.4 ) * 100 = 94.86 %
Ugitning chikish darajasi

A = C_f / C_s = P₂O_{5 fosf} / P O_5super = (39.4 / 21.4 )* 1000=1841,12 kg