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Recovery of colemanite from tailing using a knelson concentrator

Savas M.

Physicochemical Problems of Mineral Processing

2016

Vol. 52, iss. 2

1036--1047

Tailing from colemanite concentrators in Emet Boron Works contains significant amounts of boron and cause potential environmental problems. Therefore, the recovery of colemanite from these tailings is imperative to ensure no pollution of the environment. In addition, the tailings also have economic importance as a secondary resource due to their high content of B2O3. This study was undertaken to investigate the possibility of recovering colemanite from tailings using a Knelson concentrator. After samples in size of -1 mm and 0.5 mm were obtained from tailings (-3 mm) by comminution, these three different samples were placed into a Knelson concentrator. In addition to particle size, the effects of fluidization water velocity and bowl speed on the performance of the enrichment process were examined. A concentrate with a B2O3 content of 34.2% was produced with a recovery of 78.3% from tailings with a B2O3 content of 24.8%. Increasing the bowl speed improved the B2O3 recovery. Increasing the fluidization velocity or reducing the particle size adversely affected the recovery percentage. The enrichment process also permitted the removal of any residual As and Fe.

Symulacyjne modele pracy układów technologicznych przeróbki surowców

Saramak D.

Górnictwo i Geologia

2008

T. 3, z. 3

49-60

W artykule scharakteryzowane zostały wybrane modele symulujące przebieg procesu wzbogacania dla rud miedzi. Modele te zostały utworzone na podstawie krzywych wzbogacania, wyznaczonych w układzie γ - β. Na podstawie zaprezentowanych modeli zostały przykładowo obliczone zależności pomiędzy masą a jakością koncentratów miedzi.

Chosen models simulating the course of enrichment process for copper ores were described in the paper. The models were built on the basis of upgrading curves obtained in γ - β system. Based on presented models, the dependencies between the mass and the quality of copper concentrates were exemplary calculated.