发明名称 |
Process for making urea prills. |
摘要 |
<p>Making urea prills of good impact strength by allowing drops of substantially water-free urea melt to fall, counter current to a cooling gas, through a cooling zone in which a dispersion of crystalline particles with dimensions of between 2 and 10 micron, preferably between 4 and 8 micron, in a quantity of 8-25 mg per m<3> of cooling gas, in maintained.
<??>The particles may be obtained by grinding crystalline urea. </p> |
申请公布号 |
EP0037148(A1) |
申请公布日期 |
1981.10.07 |
申请号 |
EP19810200328 |
申请日期 |
1981.03.25 |
申请人 |
UNIE VAN KUNSTMESTFABRIEKEN B.V. |
发明人 |
WILLEMS, MICHAEL HENDRIK;KLOK, JAN WILLEM |
分类号 |
B01J2/02;B01J2/04;C05C9/00;(IPC1-7):01J2/04;05C9/00 |
主分类号 |
B01J2/02 |
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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