发明名称 |
PROCESS FOR PREPARING CRYSTALLINE AMMONIUM SULFATE PRODUCT |
摘要 |
The invention relates to a process for preparing a crystalline ammonium sulfate product, which process comprises: a) subjecting in a crystallizer a feed solution of ammonium sulfate to crystallization to form a first slurry of ammonium sulfate crystals; b) subjecting the first slurry of ammonium sulfate crystals to a first size classification to yield a first coarse ammonium sulfate crystal fraction and a first fine ammonium sulfate crystal fraction; c) recycling at least part of the first fine ammonium sulfate crystal fraction to the feed solution of ammonium sulfate; and d) recovering a crystalline ammonium sulfate product from the first coarse ammonium sulfate crystal fraction, characterized in that: e) a second size classification is carried out on a second slurry of ammonium sulfate crystals to yield a second coarse ammonium sulfate crystal fraction and a second fine ammonium sulfate crystal fraction. |
申请公布号 |
EP2897903(B1) |
申请公布日期 |
2016.12.14 |
申请号 |
EP20130762810 |
申请日期 |
2013.09.12 |
申请人 |
CAP III B.V. |
发明人 |
TINGE, Johan Thomas;EKKELENKAMP, Geert;VONK, Pieter |
分类号 |
C01C1/248;B01D9/00;C01C1/24;C05C3/00 |
主分类号 |
C01C1/248 |
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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