Method for producing granular muriate of potash

Claim 1

THE METHOD OF TREATING A COMPOSITION CONSISTING OF MURIATE OF POTACH TO PRODUCT DENSIFIED PARTICLES HAVING REDUCED TENDENCIES TO BREAK, DUST AND CAKE DURING HANDLING AND STORAGE, COMPRISING INITIALLY AGGLOMERATING FINELY DIVIDED SIZE OF MURIATE OF POTASH INTO LARGER PARTICLES OF LOW DENSITY AND A HIGH PERCENT OF VOIDS, SIZING THE RESULTANT AGGLOMERATED SALT TO PRODUCT A UNIFORMLY SIZED AGGLOMERATED PRODUCT IN A NARROW SIZE CLASSIFICATION RANGE, HEATING SUCH UNIFORMLY SIZED PARTICLES TO THEIR INCIPIENT FUSION TEMPERATURE WITHIN THE RANGE OF 1350*1440*F. WHICH IS LESS THAN THEIR MALTING POINT UNTIL SUCH PARTICLES SOFTEN WITHOUT MELTING TO THEREBY FORM COALESCED, SUBSTANTIALLY UNIFORMLY FUSED AND DENSIFIED PARTICLES HAVING GLAZED AND ROUNDED SURFACES, AND HARDENING THE TREATED PARTICLES BY A COOLING ACTION TO FORM PARTICLES HARDENED THROUGHOUT AND HAVING SUBSTANTIALLY REDUCED VOIDS.

Claim 2

THE METHOD OF TREATING A COMPOSITION CONSISTING OF MURIATE OF POTACH TO PRODUCT DENSIFIED PARTICLES HAVING REDUCED TENDENCIES TO BREAK, DUST AND CAKE DURING HANDLING AND STORAGE, COMPRISING INITIALLY AGGLOMERATING FINELY DIVIDED SIZE OF MURIATE OF POTASH INTO LARGER PARTICLES OF LOW DENSITY AND A HIGH PERCENT OF VOIDS, SIZING THE RESULTANT AGGLOMERATED SALT TO PRODUCT A UNIFORMLY SIZED AGGLOMERATED PRODUCT IN A NARROW SIZE CLASSIFICATION RANGE, HEATING SUCH UNIFORMLY SIZED PARTICLES TO THEIR INCIPIENT FUSION TEMPERATURE WITHIN THE RANGE OF 1350*1440*F. WHICH IS LESS THAN THEIR MALTING POINT UNTIL SUCH PARTICLES SOFTEN WITHOUT MELTING TO THEREBY FORM COALESCED, SUBSTANTIALLY UNIFORMLY FUSED AND DENSIFIED PARTICLES HAVING GLAZED AND ROUNDED SURFACES, AND HARDENING THE TREATED PARTICLES BY A COOLING ACTION TO FORM PARTICLES HARDENED THROUGHOUT AND HAVING SUBSTANTIALLY REDUCED VOIDS.