FIELD: technology of fertilizer production. SUBSTANCE: method involves mixing carbamide (35-90%) with potassium chloride, heating a mixture to carbamide melting and granulation of fertilizer. Cyclone dust forming at drying and dust removing the flotation potassium chloride is used as potassium chloride source and nonquality carbamide (by granulometric fraction composition) and/or powder-like semiproduct forming after crystallizate separation from mother liquor is used as carbamide source. Method is used in technology of producing the complex granulated mineral fertilizers. EFFECT: increased strength of granules, simplified technology, utilization of nonquality products. 3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING NITROGEN-POTASSIUM-SULFATE FERTILIZER | 2002 |
|
RU2217399C1 |
| METHOD FOR PREPARING GRANULATED COMPLEX NITROGEN-MAGNESIUM FERTILIZER | 2002 |
|
RU2217398C1 |
| NITROGEN-POTASSIUM FERTILIZER AND METHOD FOR MANUFACTURE THEREOF | 2002 |
|
RU2198862C1 |
| METHOD OF PRODUCING POTASSIUM CHLORIDE WITH IMPROVED RHEOLOGICAL PROPERTIES | 2019 |
|
RU2732415C1 |
| METHOD OF PRODUCING GRANULAR POTASSIUM CHLORIDE | 2021 |
|
RU2769801C1 |
| METHOD OF PROCESSING SALT SOLUTION WASTES CONTAINING A MIXTURE OF SULPHATES AND NITRATES OF AMMONIUM AND SODIUM | 2019 |
|
RU2716048C1 |
| METHOD OF PRODUCING AGGLOMERATED POTASSIUM CHLORIDE | 2013 |
|
RU2554178C2 |
| METHOD FOR GRANULATION OF FLOTATION POTASSIUM CHLORIDE | 2021 |
|
RU2775769C1 |
| METHOD OF PRODUCTION OF THE GRANULATED CARBAMIDE | 2005 |
|
RU2285684C1 |
| METHOD FOR OBTAINING POTASSIUM CHLORIDE FROM SILVINITE ORE | 2021 |
|
RU2779661C1 |
