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Process for producing fertilizer granules containing urea and ammonium sulphate granules containing urea and ammonio, and sulphate of ammonio
Process for producing fertilizer granules containing urea and ammonium sulphate granules containing urea and ammonio, and sulphate of ammonio
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机译:包含尿素和硫酸铵的肥料颗粒的生产方法,所述硫酸铵颗粒包含尿素和氨以及氨的硫酸盐
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摘要
The invention concerns a method of producing fertilizer granules containing urea and ammonium sulphate by granulating a mixture containing urea, ammonium sulphate and water, which is characterized in that the ammonium sulphate is completely dissolved in an aqueous urea solution with a urea concentration of 70-85% by weight, the resulting solution is thickened to a dry content of 92-97% by weight, with a granulation additive for the urea being added in any stage of the treatment, following which the thickened solution is granulated in a fluidized bed of urea and ammonium sulphate containing nuclei.
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