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Technological characterization of Anitapolis (Brazil) phosphate rock as feedstock for fused magnesium phosphate production

Cekinski, E. (Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo, Sao Paulo, SP (Brazil). Div de Quimica) ; Silva, G.A. da

Nutrient cycling in agroecosystems, 1998-09, Vol.52 (1), p.31-35 [Periódico revisado por pares]

Dordrecht: Springer Nature B.V

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Technological characterization of Anitapolis (Brazil) phosphate rock as feedstock for fused magnesium phosphate production
Autor: Cekinski, E. (Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo, Sao Paulo, SP (Brazil). Div de Quimica) ; Silva, G.A. da
Assuntos: ABONOS FOSFATADOS ; ABONOS MAGNESICOS ; Animal feed ; Beneficiation ; BRASIL ; BRAZIL ; BRESIL ; Citric acid ; Cooling ; Cooling rate ; Dependence ; ENGRAIS MAGNESIEN ; ENGRAIS PHOSPHATE ; FERTILIZER INDUSTRY ; Fertilizers ; Fluorine ; Fusion temperature ; INDUSTRIA DE ABONOS ; INDUSTRIE DES ENGRAIS ; Magnesium ; MAGNESIUM FERTILIZERS ; Magnesium oxide ; Magnesium phosphate ; PHOSPHATE FERTILIZERS ; Phosphates ; Phosphorus ; Phosphorus pentoxide ; Raw materials ; Rocks ; Silicon dioxide ; Solubilization ; Sulfur
É parte de: Nutrient cycling in agroecosystems, 1998-09, Vol.52 (1), p.31-35
Notas: 1998006373
E21
Descrição: Fused magnesium phosphate seems to be a technical solution for some problems faced by the Brazilian industry of phosphate fertilizers, namely: high P2O5 losses in the fines of the beneficiation processes; high level of phosphorus fixation for water soluble fertilizers; Brazilian high dependency on sulfur for conventional phosphate fertilizers. The technological characterization of phosphate concentrate of Anitapolis, regarding the production of fused magnesium phosphate was thus carried out.The variables studied were MgO/SiO2 ratio, fusion temperature and cooling rate. The products obtained in the tests were analyzed for P2O5 citric acid solubility and fluorine content. As expected, fast cooling showed the best results. MgO/SiO2 molar ratio showed weak influence on the solubilization of P2O5 when fast cooling was used. Fluorine removal was low for all samples. This indicates that the product is not suitable for animal feed. The Anitapolis rock concentrate showed to be an excellent feedstock for production of fused magnesium phosphate.
Editor: Dordrecht: Springer Nature B.V
Idioma: Inglês

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Technological characterization of Anitapolis (Brazil) phosphate rock as feedstock for fused magnesium phosphate production

Cekinski, E. (Instituto de Pesquisas Tecnologicas do Estado de Sao Paulo, Sao Paulo, SP (Brazil). Div de Quimica) ; Silva, G.A. da

Dordrecht: Springer Nature B.V

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