专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2014044593A1 PROCESS FOR PREPARING CRYSTALLINE AMMONIUM SULFATE PRODUCT 审中-公开
标题翻译：制备硫酸亚铁铵产品的方法
公开(公告)号：WO2014044593A1
公开(公告)日：2014-03-27
申请号：PCT/EP2013/068920
申请日：2013-09-12
申请人： DSM IP ASSETS B.V.
发明人： TINGE, Johan Thomas , EKKELENKAMP, Geert , VONK, Pieter
IPC分类号： C01C1/248 , B01D9/00 , C05C3/00
CPC分类号： C01C1/248 , B01D9/0031 , B01D9/0036 , B01D9/0063 , C01C1/24 , C05C3/005
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.
摘要翻译：本发明涉及一种制备结晶硫酸铵产物的方法，该方法包括：a）在结晶器中使硫酸铵的进料溶液结晶以形成硫酸铵晶体的第一浆料; b）使硫酸铵晶体的第一浆料进行第一尺寸分级，以产生第一粗硫酸铵晶体级分和第一细小硫酸铵晶体级分; c）将至少部分第一细小硫酸铵结晶部分再循环到硫酸铵的进料溶液中; 和d）从所述第一粗硫酸铵晶体级分回收结晶硫酸铵产物，其特征在于：e）在硫酸铵晶体的第二浆料上进行二次分级，得到第二粗硫酸铵晶体级分和第二细小的硫酸铵结晶部分。

2. 发明申请

WO2014040858A1 PROCESS FOR INITIATING AN AMMONIUM SULFATE CRYSTALLIZATION PROCESS 审中-公开
标题翻译：开发硫酸铵结晶过程的方法
公开(公告)号：WO2014040858A1
公开(公告)日：2014-03-20
申请号：PCT/EP2013/067788
申请日：2013-08-28
申请人： DSM IP ASSETS B.V.
发明人： EKKELENKAMP, Geert , TINGE, Johan Thomas , VONK, Pieter
IPC分类号： C01C1/248 , B01D9/00 , C05C3/00
CPC分类号： B01D9/0018 , B01D9/0031 , B01D9/0036 , B01D2009/0086 , C01C1/24 , C01C1/248 , C01P2004/60 , C05C3/00
摘要： A continuous process for producing crystalline ammonium sulfate, said process comprising a start-up operation followed by a steady-state operation, wherein the start-up operation comprises: i) in a crystallizer, evaporating solvent from an approximately saturated ammonium sulfate solution; ii) replacing evaporated solvent with further approximately saturated ammonium sulfate solution; iii) introducing to the crystallizer seed crystals of ammonium sulfate; iv) continuing to evaporate solvent, until a desired degree of supersaturation is reached; and v) recovering crystalline ammonium sulfate from ammonium sulfate solution in a recovery unit, and the steady-state operation comprises: vi) continuously feeding approximately saturated ammonium sulfate solution into the crystallizer and continuously withdrawing ammonium sulfate crystals from the crystallizer, such that the total combined volume of ammonium sulfate solution and ammonium sulfate crystals within the crystallizer remains constant; and vii) recovering crystalline ammonium sulfate from ammonium sulfate solution in a recovery unit, characterized in that the degree of supersaturation in the crystallizer during the start-up operation is maintained between 1.2% and the point at which primary nucleation occurs; and apparatus suitable for carrying out the process.
摘要翻译：一种用于生产结晶硫酸铵的连续方法，所述方法包括启动操作，随后是稳态操作，其中启动操作包括：i）在结晶器中，从大约饱和的硫酸铵溶液蒸发溶剂; ii）用进一步的大约饱和的硫酸铵溶液代替蒸发的溶剂; iii）将结晶器引入硫酸铵晶种; iv）继续蒸发溶剂，直到达到所需的过饱和度; 和v）在回收单元中从硫酸铵溶液中回收结晶硫酸铵，并且稳态操作包括：vi）将大约饱和的硫酸铵溶液连续地进料到结晶器中并连续地从结晶器中取出硫酸铵晶体，使得总计结晶器中硫酸铵溶液和硫酸铵晶体的组合体积保持不变; 和vii）在回收单元中从硫酸铵溶液中回收结晶硫酸铵，其特征在于，启动操作期间结晶器中的过饱和度保持在1.2％和初始成核出现点之间; 以及适于执行该过程的装置。

3. 发明申请

WO2004108693A1 GRANULAR MELAMINE 审中-公开
标题翻译：格兰美林
公开(公告)号：WO2004108693A1
公开(公告)日：2004-12-16
申请号：PCT/NL2004/000399
申请日：2004-06-03
申请人： DSM IP ASSETS B.V. , VAN DIJK, Saskia, Ingeborg , VONK, Pieter
发明人： VAN DIJK, Saskia, Ingeborg , VONK, Pieter
IPC分类号： C07D251/56
CPC分类号： C07D251/56 , B01J2/22 , Y10T428/2982
摘要： The invention relates to a granular melamine, wherein the D 99 lies between 300µm and 1800µm. The invention further relates to a process for compacting melamine comprising: - a roll pressing step wherein a melamine powder is pressed into compacted melamine; - a crushing step wherein the compacted melamine is crushed into granular melamine; - a coarse screening step to which the granular melamine is supplied, wherein particles greater than a desired particle size are separated from the granular melamine, wherein the coarse screening step is carried out in such a fashion that the granular melamine has a D 99 lying between 300µm and 1800µm.
摘要翻译：本发明涉及一种粒状三聚氰胺，其中D99位于300μm与1800μm之间。本发明还涉及一种压实三聚氰胺的方法，其包括： - 辊压步骤，其中将三聚氰胺粉末压制成压实的三聚氰胺; - 压碎步骤，其中将压实的三聚氰胺粉碎成颗粒状三聚氰胺; - 提供颗粒状三聚氰胺的粗筛选步骤，其中大于所需粒径的颗粒与颗粒状三聚氰胺分离，其中粗筛选步骤以使颗粒状三聚氰胺具有位于300μm之间的D99 和1800μm。

4. 发明公开

EP2895426A1 PROCESS FOR INITIATING AN AMMONIUM SULFATE CRYSTALLIZATION PROCESS 有权转让
标题翻译： VERFAHREN ZUM INITIIEREN EINES AMMONIUMSULFAT-KRISTALLISATIONSVERFAHRENS
公开(公告)号：EP2895426A1
公开(公告)日：2015-07-22
申请号：EP13758793.7
申请日：2013-08-28
申请人： DSM IP Assets B.V.
发明人： EKKELENKAMP, Geert , TINGE, Johan Thomas , VONK, Pieter
IPC分类号： C01C1/248 , B01D9/00 , C05C3/00
CPC分类号： B01D9/0018 , B01D9/0031 , B01D9/0036 , B01D2009/0086 , C01C1/24 , C01C1/248 , C01P2004/60 , C05C3/00
摘要： A continuous process for producing crystal-line ammonium sulfate, said process comprising a start-up operation followed by a steady-state operation, wherein the start-up operation comprises: i) in a crystallizer, evaporating solvent from an approximately saturated ammonium sulfate solution; ii) replacing evaporated solvent with further approximately proximately saturated ammonium sulfate solution; iii) introducing to the crystallizer seed crystals of ammonium sulfate; iv) continuing to evaporate solvent, until a desired degree of supersaturation is reached; and v) recovering crystalline ammonium sulfate from ammonium sulfate solution in a recovery unit, and the steady-state operation comprises: vi) continuously feeding approximately saturated ammonium sulfate solution into the crystallizer and continuously withdrawing ammonium sulfate crystals from the crystallizer, such that the total combined volume of ammonium sulfate solution and ammonium sulfate crystals within the crystallizer remains constant; and vii) recovering crystalline ammonium sulfate from ammonium sulfate solution in a recovery unit, characterized in that the degree of supersaturation in the crystallizer during the start-up operation is maintained between 1.2% and the point at which primary nucleation occurs; and apparatus suitable for carrying out the process.
摘要翻译：一种用于生产结晶线硫酸铵的连续方法，所述方法包括启动操作，然后进行稳态操作，其中启动操作包括：i）在结晶器中，从大约饱和的硫酸铵溶液蒸发溶剂 ; ii）用进一步的近似饱和的硫酸铵溶液代替蒸发的溶剂; iii）将结晶器引入硫酸铵晶种; iv）继续蒸发溶剂，直到达到所需的过饱和度; 和v）在回收单元中从硫酸铵溶液中回收结晶硫酸铵，并且稳态操作包括：vi）连续将约饱和的硫酸铵溶液进料到结晶器中并连续地从结晶器中取出硫酸铵晶体，使得总计结晶器中硫酸铵溶液和硫酸铵晶体的总体积保持恒定; 和vii）在回收单元中从硫酸铵溶液中回收结晶硫酸铵，其特征在于，在启动操作期间结晶器中的过饱和度保持在1.2％和发生初始成核的点之间; 以及适于执行该过程的装置。

5. 发明公开

EP2897903A1 PROCESS FOR PREPARING CRYSTALLINE AMMONIUM SULFATE PRODUCT 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES KRISTALLINEN AMMONIUMSULFATPRODUKTES
公开(公告)号：EP2897903A1
公开(公告)日：2015-07-29
申请号：EP13762810.3
申请日：2013-09-12
申请人： DSM IP Assets B.V.
发明人： TINGE, Johan Thomas , EKKELENKAMP, Geert , VONK, Pieter
IPC分类号： C01C1/248 , B01D9/00 , C05C3/00
CPC分类号： C01C1/248 , B01D9/0031 , B01D9/0036 , B01D9/0063 , C01C1/24 , C05C3/005
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.
摘要翻译：本发明涉及一种制备结晶硫酸铵产物的方法，该方法包括：a）在结晶器中使硫酸铵的进料溶液结晶以形成硫酸铵晶体的第一浆料; b）使硫酸铵晶体的第一浆料进行第一粒度分级以产生第一粗硫酸铵晶体级分和第一细小硫酸铵晶体级分; c）将至少部分第一细小硫酸铵结晶部分再循环到硫酸铵的进料溶液中; 和d）从所述第一粗硫酸铵晶体级分回收结晶硫酸铵产物，其特征在于：e）在硫酸铵晶体的第二浆料上进行二次分级，得到第二粗硫酸铵晶体级分和第二细小的硫酸铵结晶部分。

6. 发明授权

EP1631555B1 Process for preparing granular melamine 有权
标题翻译：一种用于粒状蜜胺的制备方法
公开(公告)号：EP1631555B1
公开(公告)日：2009-04-29
申请号：EP04748631.1
申请日：2004-06-03
申请人： DSM IP Assets B.V.
发明人： VAN DIJK, Saskia, Ingeborg , VONK, Pieter
IPC分类号： C07D251/56 , B01J2/22
CPC分类号： C07D251/56 , B01J2/22 , Y10T428/2982
摘要： The invention relates to a granular melamine, wherein the D99 lies between 300µm and 1800µm. The invention further relates to a process for compacting melamine comprising: - a roll pressing step wherein a melamine powder is pressed into compacted melamine; - a crushing step wherein the compacted melamine is crushed into granular melamine; - a coarse screening step to which the granular melamine is supplied, wherein particles greater than a desired particle size are separated from the granular melamine, wherein the coarse screening step is carried out in such a fashion that the granular melamine has a D99 lying between 300µm and 1800µm.

7. 发明公开

EP1631555A1 GRANULAR MELAMINE 有权
标题翻译：一种用于粒状蜜胺的制备方法
公开(公告)号：EP1631555A1
公开(公告)日：2006-03-08
申请号：EP04748631.1
申请日：2004-06-03
申请人： DSM IP Assets B.V.
发明人： VAN DIJK, Saskia, Ingeborg , VONK, Pieter
IPC分类号： C07D251/56 , B01J2/22
CPC分类号： C07D251/56 , B01J2/22 , Y10T428/2982
摘要： The invention relates to a granular melamine, wherein the D99 lies between 300µm and 1800µm. The invention further relates to a process for compacting melamine comprising: - a roll pressing step wherein a melamine powder is pressed into compacted melamine; - a crushing step wherein the compacted melamine is crushed into granular melamine; - a coarse screening step to which the granular melamine is supplied, wherein particles greater than a desired particle size are separated from the granular melamine, wherein the coarse screening step is carried out in such a fashion that the granular melamine has a D99 lying between 300µm and 1800µm.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式