A fertilizer composition includes, relative to the total weight of composition, from 0.5 to 32.0 weight percentage of at least one sulphur water-soluble fertilizing nutrient chosen from a sulphur compound according to general formula (I.sub.S), and from 1.0 to 20.0 wt. % of water. The composition includes at least one phosphorus and calcium water-soluble fertilizing nutrient. The composition, relative to the total weight of composition, has a total calcium content from 0.5 to 32.0 wt. %, as expressed in wt. % of CaO, and a total phosphorus content from 3.0 to 65.0 wt. %, as expressed in wt. % of P.sub.2O.sub.5.

There is provided herein a fertilizer granule comprising Urea, Polyhalite and Ammonium Sulphate.

There is provided herein a fertilizer granule comprising Urea, Polyhalite and Ammonium Sulphate.

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one hydrogen phosphate additive in the presence of water. The alkali metal carbonate is anhydrous sodium carbonate, sodium carbonate monohydrate or sodium carbonate decahydrate.

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one hydrogen phosphate additive in the presence of water. The alkali metal carbonate is anhydrous sodium carbonate, sodium carbonate monohydrate or sodium carbonate decahydrate.

A calcium sulfate urea (UCS) fertilizer granule and methods for making and using the same are disclosed. The granule can include urea, calcium sulfate, and a calcium sulfate urea adduct, wherein a portion of the surface of the calcium sulfate urea adduct includes a layer comprising urea, calcium sulfate, or calcium sulfate urea adduct, or any combination or all thereof.

A calcium sulfate urea (UCS) fertilizer granule and methods for making and using the same are disclosed. The granule can include urea, calcium sulfate, and a calcium sulfate urea adduct, wherein a portion of the surface of the calcium sulfate urea adduct includes a layer comprising urea, calcium sulfate, or calcium sulfate urea adduct, or any combination or all thereof.

A method for separating a particulate stream of an evaporite mineral feedstock, the method comprising passing the stream to an air classifier configured to separate the particulate stream into a fine component and a coarse component.

A method for separating a particulate stream of an evaporite mineral feedstock, the method comprising passing the stream to an air classifier configured to separate the particulate stream into a fine component and a coarse component.

A urea phosphate calcium sulfate (UPCS) fertilizer granule and methods for making and using the same are disclosed. The granule can include urea phosphate and a urea-calcium sulfate (UCS) adduct. The granule can include 22 wt. % to 28 wt. % nitrogen (22 wt. % to 28 wt. % N), an amount of phosphorus equal to that provided by 5 wt. % to 10 wt. % P2O5 (5 wt. % to 10 wt. % P), 2 wt. % to 8 wt. % sulfur (2 wt. % to 8 wt. % S), and 5 wt. % to 11 wt. % calcium (5 wt. % to 11 wt. % Ca).