| 摘要 |
Disclosed is a method for preparing a phosphate suspension from phosphoric acid, a base and organic additives, wherein the phosphoric acid of fertilizer quality (54-62 % of P2O5) is preneutralised with a base, emulsifiable oil and sugar are added as organic additives, nucleation is controlled and phosphate salts are cooling crystallised to form a suspension. Also disclosed is a phosphate suspension obtained by the above method which contains 10-14% of phosphor (P) in the form of acicular monopotassium phosphate crystals and having a pH in the range 5.3-6, and a viscosity in the range 300-2,000 cP at a temperature of 20°C. Additionally, the use of a phosphate suspension as defined above for seed coating is also disclosed.
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