Optimization of thermal beneficiation of a low grade dolomitic phosphate rock

Autor:	D. W. Pritchard, Zafar Iqbal Zafar, M. M. Anwar
Rok vydání:	1995
Předmět:	Materials science Beneficiation Mineralogy Geotechnical Engineering and Engineering Geology Phosphate law.invention chemistry.chemical_compound chemistry Phosphorite Geochemistry and Petrology law Thermal Calcination Particle size
Zdroj:	International Journal of Mineral Processing. 43:123-131
ISSN:	0301-7516
DOI:	10.1016/0301-7516(94)00043-y
Popis:	Low grade dolomitic phosphate rocks have no direct use and are rejected all over the world. Substantial amounts of such low grade phosphorites are found along with high grade ore in some areas of Hazara (Pakistan). In the method described, thermal beneficiation is carried out to see the effect of temperature, time and particle size for the low grade dolomitic phosphorites of Hazara. Under various parameter conditions the rock is heated and quenched. The concentrates obtained from the ore assaying 16% P 2 O 5 content after desliming are enriched to a product containing 31–34% P 2 O 5 without using any expensive chemicals or energy required in conventional flotation and calcination methods.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53861674ab16985146bebc6524409a2c https://doi.org/10.1016/0301-7516(94)00043-y Zobrazit plný text záznamu Full Text from ScienceDirect