Name | POTASSIUM AMMONIUM SULFATE |
Synonyms | POTASSIUM AMMONIUM SULFATE |
CAS | 23208-79-9 |
Molecular Formula | H6KNO4S |
Molar Mass | 155.21 |
Introduction | ammonium potassium sulfate is the world's common fertilizer for chlorine-free crops, which can provide potassium, nitrogen and sulfur three nutrients, can not only improve crop yield, but also improve its quality, used in sulfur deficient soil, can improve the disease resistance of crops. |
preparation method | put 0.8 m398% sulfuric acid and 1 ton of potassium chloride into the conversion reaction tank, the low-temperature conversion reaction is completed at 130 ℃, and 1.66 tons of potassium hydrogen sulfate and 1.44 tons of by-product 31% hydrochloric acid are obtained. The potassium hydrogen sulfate formed by the conversion enters the tubular reactor together with ammonia for neutralization reaction, generate 105 ℃ potassium ammonium sulfate slurry; Use the heat contained in the potassium ammonium sulfate slurry to flash water and improve its supersaturation, adjust the stirring speed of 10-15 r/min, crystallize, centrifuge and filter, the mother liquor was recycled and centrifuged to obtain 2.15 tons of potassium-ammonium sulfate product. The total nutrients of the obtained potassium-ammonium sulfate product were 37.08, including N11.02%,K2O26.06%, water 3.0%, and chloride 1.82%. |