USA Process for pelletizing a sulphurbentonite ...
A process for pelletizing a mixture of elemental sulphur and bentonite clay to produce a water degradable prill includes adding dry clay dust to molten sulphur at an elevated temperature to provide a molten sulphurclay mixture, forming droplets of the mixture, providing a liquid fertilizer coolant at a temperature lower than the freezing temperature of the sulphurbentonite mixture, feeding ...