Mixing of Sulphur and Bentonite and/or Micronutrients

The sulphur bentonite fertilizer production facility incorporates the use of molten sulphur and bentonite clay to produce a unique type of agricultural fertilizer. De-gassed molten sulphur, typically taken from desulphurization plants in gas refineries, is delivered via bulk trucks or rail cars in to a molten sulphur storage tank. Molten sulphur is then transferred to a batch mixing tank where it is mixed with the bentonite clay and other metals if desired.

The selection of the bentonite clay is crucial for agronomic success. The bentonite clay must have the swelling characteristics that will enable the sulphur pastille to expand and break apart when in contact with moisture. The clays typically have the ability to swell to as much as 40 times their original size. The clay must also be able to result in a nice hard pastille that won't break down during transport and storage.

The bentonite is kept in suspension prior to manufacture via a physical agitation process.