With world food production at record levels and demand for crop-derived biofuels rising sharply, the production of phosphate-based fertilisers is booming
A crucial factor in the production of phosphoric acid is the control of sulphate.
Sulphate levels must be controlled tightly, and Metrohm's 859 Titrotherm thermometric titration system has a critical role to play.
The previous methods have either been too slow and difficult to perform (classical gravimetry) or inaccurate and subject to interference (nephelometry).
Titrotherm's simple thermometric titration with barium chloride is very fast, easily performed by process operators, and meets industry requirements for precision and accuracy.
Titrations are generally complete within 30 seconds.
The method is suitable for automation with a Metrohm 814 sample processor
