Abstract: According to some embodiments, there is provided herein a process for the production of a unified fertilizer granule of Polyhalite and an N-fertilizer, comprising adding Polyhalite to a fluidized bed reactor; adding said N-fertilizer to said reactor; and allowing the polyhalite and N-fertilizer to mix for 15-120 minutes.

Abstract: There is provided herein a granule comprising Polyhalite and phosphogypsum, in a ratio of between 40:60 to 60:40, respectively.

Abstract: According to some embodiments, there is provided herein a granule comprising polyhalite and phosphate rock, in a ratio of between 30:70 to 70:30, respectively.

Abstract: There is provided herein a granule comprising polyhalite in a concentration of between 20-80% w/w and urea in a concentration of between 20-50% w/w and optionally a binder, wherein said granule comprises a granule strength of at least 1.1 Kg/ granule.

Abstract: According to some demonstrative embodiments, there is provided herein a chloride free fertilizer granule comprising a mixture of polyhalite and melt urea in a ratio of between 1:4 to 4:1.

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

Abstract: According to some embodiments, there is provided herein a fertilizer granule comprising Polyhalite and Sulphate of Potash (SOP), wherein the granule comprises a granule strength of at least 0.5 Kg/granule.

Abstract: According to some embodiments, there is provided herein a fertilizer granule comprising Polyhalite and Ammonium Sulphate, wherein said granule comprises a concentration of 40-60% w/w Polyhalite and 60-40% w/w of Ammonium Sulphate.

Abstract: According to some demonstrative embodiments, there is provided herein a fertilizer granule comprising Polyhalite and potassium sulphate, wherein said Polyhalite is present in a concentration of 30-70% w/w and said Potassium Sulphate is present in a concentration of 70-30% w/w, wherein the strength of granule immediately after production 1.3 Kg granule.

Abstract: According to some embodiments of the present invention there is provided herein a compacted granule of Polyhalite, Potassium salt and an inorganic binder comprising a strength of 2.7 KgF/Granule when measured after production.

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

Abstract: There is provided herein a granule of potash and polyhalite comprising: at least 10% Potash; at least 10% Polyhalite; optionally a binder; and wherein said granule comprises a bulk density of at least 1 T/m3 and single strength of between 1-5 kg/granule.

Abstract: According to some embodiments there is provided a process for the recovery of SOP from Sulphate bearing mineral and Carnallite or Sylvenite, comprising: Dissolving Carnallite in water to obtain Sylvenite and high Magnesium Chloride brine; Adding Sodium Sulphate to said Carnallite to produce mixture of Kainte\Leonite, KCl and NaCl precipitant and brine containing Mg Cl2, KCl, NaCl; Separating the NaCl from the mixture; Obtaining a precipitant mixture of Leonite with KCl; Filtering said Leonite and washing with water to yield pure mixture of Leonite with KCl; Adding KCl to the Leonite with the KCl; and Decompose said Leonite with the KCl to SOP.

Abstract: There is provided herein a process for the compaction of Polyhalite, comprising: mixing a feed of polyhalite with an inorganic binder in a mixer to yield a mixture; compacting said mixture in a compactor to yield masses; crushing said masses in a crusher to yield particles; and screening said particles in a screener to yield particles in three different sizes: oversized fine particles which undergo a second crushing process and are retuned to said screener for screening, undersized fine particles which are transferred to said mixer for further mixing and compacting, and desired size fine particles which are transferred to a polish screener for glazing and oiling.

Abstract: There is provided herein a granule of polyhalite and potash comprising potash in a concentration of between 10-90% w/w; polyhalite in a concentration of between 10-90% w/w; a binder in a concentration of between 1-5% w/w.

Abstract: According to some demonstrative embodiments, there is provided herein a fertilizer granule including a fertilizer dust and one or more binders wherein said granule comprises a single strength of at least 2.5 kg/gran and a single strength after humidity chamber 24 hours, 79% RH of at least 0.5 kg/granule.

Abstract: According to some embodiments there is provided herein a granule of potash dust comprising a binder selected from the group including Flyash, Sodium Silicate, Potassium Silicate and starches, wherein said potash dust comprises particles in the size between 0.001-0.

Abstract: There is provided herein a process for the compaction of Polyhalite with a Potassium salt, wherein said process comprising: mixing a feed of polyhalite with a feed of said Potassium salt in a mixer to yield a mixture; compacting said mixture in a compactor to yield masses; crushing said masses in a crusher to yield particles; screening said particles in a screener to yield fine particles in three different sizes: oversized fine particles which undergo a second crushing process and are retuned to said screener for screening, undersized fine particles which are transferred to said mixer for further mixing, and desired size fine particles which are transferred to a polish screener glazing, drying and oiling.

Abstract: There is provided herein a process for the production of polyhalite granules from fine dry polyhalite powder comprising preparing a binder-water mix and mixing the binder-water mix with the polyhalite powder in a mixer, continuously adding water to the mixer to provide a polyhalite material, discharging the polyhalite material from the mixer and introducing the material into a fluid bed, drying the material and screening the material to receive granules ranging in size between 1.4 mm to 4.75 mm.

Abstract: There is provided herein a process for the compaction of Polyhalite with a Potassium salt, wherein said process comprising: mixing a feed of polyhalite with a feed of said Potassium salt in a mixer to yield a mixture; compacting said mixture in a compactor to yield masses; crushing said masses in a crusher to yield particles; screening said particles in a screener to yield fine particles in three different sizes: oversized fine particles which undergo a second crushing process and are retuned to said screener for screening, undersized fine particles which are transferred to said mixer for further mixing, and desired size fine particles which are transferred to a polish screener glazing, drying and oiling.