发明名称 |
Method for producing calcium nitrate granules |
摘要 |
This invention relates to a method for producing calcium nitrate granules. A calcium nitrate melt is sprayed into a re-circulating bed of a first fluidized bed granulator, wherein the re-circulating bed is supplied with air that has been conditioned and heated to a temperature of between 60° C. and 100° C. Calcium nitrate granulates formed in the granulator are introduced to a primary cooler in the form of a second fluidized bed where the granules are cooled to from 50° C. to 60° C. by conditioned air. The granules are sorted in a sorter and then cooled in a secondary cooler to a temperature of less than 40° C. before being bagged. The granules so produced are hard and dry and do not break down easily during handling. |
申请公布号 |
US7029504(B2) |
申请公布日期 |
2006.04.18 |
申请号 |
US20030275062 |
申请日期 |
2003.02.03 |
申请人 |
OMNIA FERTILIZER LIMITED |
发明人 |
RABIE DIRK RENIER HENDRIK;MORRIS WILFRED ROY;EYGELAAR JOHANNES PETRUS GYSBERT |
分类号 |
C01B21/48;B01J2/16;C01C1/18;C01F11/36;C01F11/44;C05C5/04;C05G5/00;C06B31/02 |
主分类号 |
C01B21/48 |
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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