Patent ID: 8323371

Claim:
A method for synthesizing a compacted potassium chloride fertilizer product, comprising: providing a source of potassium chloride in a size distribution of between 30 mesh and 100 mesh; pulverizing a mixture of said source of potassium chloride in the presence of a binder, said binder being a gluten containing grain type binder present in an amount between 1% to 2.5% by weight; feeding the pulverized mixture to a counter rotating roller system and squeezing the mixture at a pressure of between 1000 and 2000 psi to homogenously distribute said binder and said potassium chloride into flakes; drying said flakes; and crushing said flakes in a roll or impact crusher to yield a product in a size distribution of between 4 mesh and 12 mesh in a yield of between 30% and 40%.