Phosphate production

Claim 1

CYCLIC PROCESS FOR THE MANUFACTURING OF MONOPOTASSIUM PHOSPHATE AND SODIUM CCHLORIDE IN SUBSTANTIALLY MOLECULAR EQUOVALENT AMOUNTS, SAID CYCLIC PROCESS CONSISTING ESSENTIALLY OF THE STEPS OF: (1) DISSOLVING SUBSTANTIALLY MOLE CULAR EQUIVALENT WEIGHTS OF MONOSODIUM PHOSPHATE AND POTASSIUM CHLORIDE IN A RECYCLE SOLUTION CONTAINING SUBSTANTIALLY MOLECULAR EQUIVALENT AMOUNTS OF MONOSODIUM PHOSPHATE AND POTASSIUM CHLORIDE TO FORM A HOT, CONCENTRATED AQUEOUS SOLUTION; (2) COOLING SAID AQUEOUS SOLUTION TO CRYSTALLIZE MONOPOTASSIUM PHOSPHATE AND SEPARATING SAID CRYSTALLIZED MONOPOTASSIUM PHOSPHATE FROM SAID AQUEOUS SOLUTION; (3) CONCENTRATING THE REMAINING SOLUTION TO CRYSTALLIZE SODIUM CHLORIDE THEREFROM IN AN AMOUNT WHICH IS SUBSTANTIALLY MOLECULARLY EQUIVALENT TO THE AMOUNT OF THE SEPARATED, CRYSTALLIZED MONOPOTASSIUM PHOSPHATE AND SEPARATING THE CRYSTALLIZED SODIUM CHLORIDE FROM THE REMAINING SOLUTION, SAID REMAINING SOLUTION CONTAINING SUBSTANTIALLY MOLECULAR EQUIVALENT AMOUNTS OF MONOSODIUM PHOSPHATE AND POTASSIUM CHLORIDE, SAID REMAINING SOLUTION BEING RECYCLED TO THE INITIAL STEP AS THE SAID RECYCLE SOLUTION.