Production of high quality magnesium chloride from recycled waste magnesite powder

• Autorzy: Erdogan N. , Yersel E. , Celebi C. , Kavakli N. , Batar T.
• Języki publikacji: EN

Abstrakty

EN

This study investigates the production of high-quality MgCl2 from recycled waste magnesite powder with an average particle size of d50 0.079 mm using the HCl acid leaching method. The experimental parameters were, leaching temperature, leaching time, amount of the acid, liquid-to-solid ratio, scale-up factor, acid concentration, particle size and mixing speed. The experiments were performed under reproducible conditions. The results showed that optimum leaching parameters were: temperature of 70 °C, 180 min leaching time, 130 cm3 acid consumption, 3.6 cm3/g liquid-to-solid ratio, scale-up factor of 1, 10.17 M acid concentration, 0.079 mm average particle size and a mixing speed 60 rpm. Under these optimum conditions, the leaching yield was 96.72%. The produced MgCl2 solution contained 0.04% SiO2, 0.36% CaO, 0% Fe2O3, 0% Al2O3, 46.73% MgCl2, 52.87% L.O.I. and 99.60% MgCl2+L.O.I. (= MgCl2·6H2O). These results indicated that high-quality magnesium chloride can be produced from waste magnesite powder.

Słowa kluczowe

EN

waste magnesite powder; leaching hydrochloride acid; magnesium chloride; MgCl2

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2013
• Tom: Vol. 49, iss. 2
• Strony: 557--566
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Erdogan N.

• Aksaray University, Department of Mining Engineering, Aksaray, Turkey

autor

Yersel E.

• Canakkale Onsekiz Mart University, Department of Mining Engineering, Canakkale, Turkey

autor

Celebi C.

• Ministry of Energy and Natural Resources, Ankara, Turkey

autor

Kavakli N.

• Ministry of Energy and Natural Resources, Ankara, Turkey

autor

Batar T.

• Gediz University, Faculty of Engineering and Architechure, Izmir, Turkey

Bibliografia

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