The present disclosure concerns fertilizer particles comprising calcium nitrate and potassium nitrate. It is found that fertilizer particles comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate can be produced by melt granulation. Due to undercooling problems, such particles were not expected to be suitable for industrial production by melt granulation. However, the present disclosure provides a composition which forms a low viscosity melt with short solidification time. This was successfully achieved by reducing the water content of a fertilizer melt comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate to less than 3% w/w of the melt.

The present disclosure concerns fertilizer particles comprising calcium nitrate and potassium nitrate. It is found that fertilizer particles comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate can be produced by melt granulation. Due to undercooling problems, such particles were not expected to be suitable for industrial production by melt granulation. However, the present disclosure provides a composition which forms a low viscosity melt with short solidification time. This was successfully achieved by reducing the water content of a fertilizer melt comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate to less than 3% w/w of the melt.

A system and method of briquette formation of hygroscopic metallic salts. The system including a feed hopper unit, a vibrating sieve unit, a briquetting unit, a belt conveyer, a bucket elevator, a double deck vibrating sieve unit, a product hopper unit, a by-product hopper unit, and a product and by product packing unit. the briquetting unit comprising an inclined screw conveyer unit is configured for pushing hygroscopic salt material into the briquetting unit, one or more briquette rollers configured for compression of feed material into briquette stripes and a cutting assembly configured to cut briquette stripes and to obtain the briquette of hygroscopic metallic salt. Hygroscopic metallic salt briquette manufactured by the process is easy to handle, transportable, storage stable and causes minimum loss of salt before the end use.

A system and method of briquette formation of hygroscopic metallic salts. The system including a feed hopper unit, a vibrating sieve unit, a briquetting unit, a belt conveyer, a bucket elevator, a double deck vibrating sieve unit, a product hopper unit, a by-product hopper unit, and a product and by product packing unit. the briquetting unit comprising an inclined screw conveyer unit is configured for pushing hygroscopic salt material into the briquetting unit, one or more briquette rollers configured for compression of feed material into briquette stripes and a cutting assembly configured to cut briquette stripes and to obtain the briquette of hygroscopic metallic salt. Hygroscopic metallic salt briquette manufactured by the process is easy to handle, transportable, storage stable and causes minimum loss of salt before the end use.

The present disclosure concerns fertilizer particles comprising calcium nitrate and potassium nitrate. It is found that fertilizer particles comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate can be produced by melt granulation. Due to undercooling problems, such particles were not expected to be suitable for industrial production by melt granulation. However, the present disclosure provides a composition which forms a low viscosity melt with short solidification time. This was successfully achieved by reducing the water content of a fertilizer melt comprising 43 to 47% w/w calcium nitrate and 46 to 54% w/w potassium nitrate to less than 3% w/w of the melt.