Case Studies

Case study: Nickel Processing - pH + ORP | Leonora WA

The challenge

The high-pressure acid leach process at this nickel-cobalt plant was destroying pH sensors. The initial problems were so severe that it made it near impossible to control the process.

At many critical measurement points, sensors were being destroyed within days, sometimes hours.

The solution

Several unique Turtle Tough sensor designs have been used throughout the plant to achieve the desired lifetime and performance.

The result

We are using some of our most extreme and tough reference junction configurations, with triple junction, acid/fluoride resistance, sulfide resistance and teflon silicon sealing. The most extreme sensors requiring preamplification are typically mated to Turtle Tough’s TTMA analyser and Rosemount analysers, while less demanding applications are utilising existing Yokogawa analysers.