发明名称 |
A METHOD OF PRODUCING FERTILIZER GRANULES CONTAINING UREA AND AMMONIUM SULPHATE,AND SIMILAR GRANULES |
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. |
申请公布号 |
ZA8607665(B) |
申请公布日期 |
1987.05.27 |
申请号 |
ZA19860007665 |
申请日期 |
1986.10.08 |
申请人 |
NEDERLANDSE STIKSTOF MAATSCHAPPIJ B.V. |
发明人 |
LUC ALBERT VANMARCKE;WALTER EDMOND MATHILDE CARDON |
分类号 |
C05C3/00;C05C9/00;C05C13/00;C05G1/00;C05G3/00 |
主分类号 |
C05C3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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