Kalit so‘zlar
tanlab eritish
sulfat kislotada eritish
metall sulfatlari
suvda eritish
rangli metallar
gidrometallurgiya
ekstraksiya samaradorligi
Iqtibos keltirish tartibi
Annotatsiya
Ushbu tadqiqotda mis eritish sanoati chiqindisi hisoblangan mis eritish shlakidan temir, rux va misni noan’anaviy gidrometallurgik usul yordamida samarali ajratib olish imkoniyatlari o‘rganildi. Bunday chiqindilarni qayta ishlash nafaqat qimmatli metallarni qayta tiklash, balki ularning atrof-muhitga salbiy ta’sirini kamaytirish nuqtai nazaridan ham muhim ahamiyatga ega. Mis eritish shlagini sulfat kislota yordamida tanlab eritishdan keyingi filtrlash bosqichida yuzaga keladigan texnologik muammolarni bartaraf etish maqsadida tadqiqot uch bosqichda olib borildi. Birinchi bosqichda shlak namunasi sulfat kislota bilan selektiv eritildi, ikkinchi bosqichda hosil bo‘lgan eritma quritildi, uchinchi bosqichda esa hosil bo‘lgan qattiq metall sulfatlari suv yordamida selektiv eritildi. Sulfat kislotali eritish jarayonida kislota konsentratsiyasi, eritish davomiyligi, harorat va aralashtirish tezligining metallarning eritmaga o‘tishiga ta’siri batafsil o‘rganildi. Tajriba natijalari shuni ko‘rsatdiki, metallarning eritmaga o‘tishi uchun 2 M kislota konsentratsiyasi, 120 daqiqa eritish vaqti, 90 °C harorat hamda 300 ayl/min (rpm) aralashtirish tezligi eng maqbul sharoit hisoblanadi. Ushbu sharoitlarda metallarning eritmaga o‘tish darajasi mis (Cu) uchun 89,5 %, rux (Zn) uchun 88,7 %, temir (Fe) uchun esa 59,2 % ni tashkil etdi. Selektiv eritishdan olingan eritma 150 °C haroratda 90 daqiqa davomida quritilib, qattiq metall sulfatlari olindi. Keyingi bosqichda ushbu mahsulot suv yordamida selektiv eritildi va metallarning eritmaga o‘tishi uchun 40 daqiqa eritish vaqti hamda 40 °C harorat eng qulay sharoit ekanligi aniqlandi.
Adabiyotlar ro‘yxati
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Mualliflik huquqi (c) 2026 Axmedov, M.S., Yuldoshev, S.M., Azimova, A.B. (Muallif)