Tecnologia em Metalurgia, Materiais e Mineração
https://tecnologiammm.com.br/article/doi/10.4322/2176-1523.20243050
Tecnologia em Metalurgia, Materiais e Mineração
Artigo Original

Sedimentation tests with chromium ore fine tailings using different flocculants

Jaciany Mayara Batista Soares; Elenice Maria Schons Silva; André Carlos Silva; Neilton da Silva Tapajós; Pablo Souza de Oliveira; André Figueiredo Nascimento; Ângelo Pereira Vieira Filho; Sirsasana Araujo dos Santos

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Abstract

Aqueous routes are of paramount importance in mineral processing. To adjust the solid contents, both concentrates and tailings, must be dewatered. A widely adopted method is the thickening, promoting the free settling of the mineral particles aided by coagulants or flocculants. This study analyzed the performance of different polyacrylamides as flocculants in the sedimentation of chromite tailings. Tests were carried out in graduated cylinders of 2.0 L for different types and dosages of flocculants and pHs. It was possible to make the settling more efficient with the addition of 30 g/t of BASF’s Magnafloc 338 at pH 8.5, decreasing the average pulp turbidity from 740.33 NTU to 31.74 ± 1.16 NTU after a few minutes.

Keywords

Dewatering; Tailings; Chromite; Flocculation; FERBASA

Referências

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Submetido em:
08/12/2023

Aceito em:
28/03/2024

66338849a953953c8e5b4933 tmm Articles
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Tecnol. Metal. Mater. Min.

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