Cobalt role for hose pumps

Peristaltic pump specialist Verderflex has exported 30 VF hose pumps to Morocco to fulfil a key role in the refining of cobalt, widely used in the production of pigment for the ceramics and glass industries.

Pumps transfer sulphuric acid and ammonia solutions from storage and dilution tanks to reactors and baths.

Exact dosing of the sulphuric acid in accordance with the pH value of the mined cobalt is vital to ensure its purity and concentration. To achieve this, the capacity of the Verderflex pump is adjusted automatically by a frequency controller driven by a pH meter. The absence of product slip in the hose is said to give a 100% volumetric efficiency.

Other Verderflex units are used as feed pumps for centrifuges at Morocco's cobalt mines.