KOBALT SAQLAGAN KEKLARNI GIDROMETALLURGIK QAYTA ISHLASHNING ZAMONAVIY TEXNOLOGIYALARI
Maqola Yon paneli
Maqolaning Asosiy Qismi
Annotatsiya
Maqolada rux ishlab chiqarishning oraliq mahsulotlaridan kobaltni ajratib olishning zamonaviy gidrometallurgik usullari tahlil qilingan. Tarkibida 0,5–3,0% kobalt va 40–60% rux bo‘lgan keklarga alohida e’tibor qaratilgan. Unda ushbu oraliq mahsulotlarning hosil bo‘lishi, ekologik xavfi hamda metallurgiya sanoatida qayta ishlash orqali tarkibidan kobalt, kadmiy va ruxni ajratib olish imkoniyatlari ko‘rib chiqilgan. Selektiv kislotali eritmaga o‘tkazish, oksidlovchi cho‘ktirish va ammiakli-sulfatli ishlov berish usullari taqqoslangan. Avvalgi tadqiqotlar natijalarining tahlili shuni ko‘rsatadiki, pH va oksidlanish-qaytarilish potensialini tartibga solish orqali kobaltning asosiy qismini qattiq qoldiqda saqlagan holda, ruxning 90 foizdan ortig‘ini eritish mumkin. Co2+ ionini Co3+ gacha oksidlash orqali tarkibida 50 foizdan ortiq kobalt bo‘lgan mahsulot va qoldiq metall konsentratsiyasi 1 mg/l dan kam bo‘lgan eritma olish mumkin. Ozon pH 4,0 da kobaltning 98 foizdan ko‘prog‘ini cho‘ktirishni ta’minlasa-da, ushbu jarayonga katta ekspluatatsion xarajatlarni talab etiladi. Xulosa qilib aytganda, texnologiyani tanlashda metallarni ajratishning selektivligini, reagentlar sarfini, eritmalarni ishlab chiqarishga qaytarish imkoniyatini va keklarni qayta ishlashning ekologik oqibatlarini hisobga olish zarur.
Yuklab olishlar
Maqola Tafsilotlari
Bo‘lim
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Iqtibos keltirish tartibi
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