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1. 发明授权

US08658123B2 Method for producing a coarse-grained ammonium sulfate product via crystallization and installation for operating the method 有权
标题翻译：通过结晶和安装来生产粗粒度硫酸铵产品的方法
公开(公告)号：US08658123B2
公开(公告)日：2014-02-25
申请号：US13780297
申请日：2013-02-28
申请人： GEA Messo GmbH
发明人： Günter Hofmann , Holger Leptien , Johannes Widua
IPC分类号： B01D9/00 , C01C1/24
CPC分类号： B01D9/0036 , B01D9/0022 , B01D9/0031 , B01D9/0059 , C01C1/248
摘要： Method for the production of a coarse-grained ammonium sulphate product by crystallization and installation for carrying out the method from an ammonium sulphate solution in a DTB type crystallizer having an internal suspension circuit and a clarifying zone, from which a clarified partial flow of solution is constantly drawn off into an external circuit, is heated in a heat exchanger to dissolve the solids contained therein and is guided back as a clear solution into the lower region of the crystallizer. A fine crystal suspension flow is drawn off from the clarifying zone as a further partial flow and guided back into the internal circuit of the crystallization stage without any previous dissolution of the solid proportion contained therein.
摘要翻译：用于通过结晶和安装来生产粗粒度硫酸铵产品的方法，用于在具有内部悬浮回路和澄清区的DTB型结晶器中从硫酸铵溶液中进行该方法，澄清的部分溶液为不断地排出到外部回路中，在热交换器中加热以溶解其中所含的固体，并将其作为透明溶液被引导回结晶器的下部区域。从澄清区排出的细晶体悬浮液流作为另外的部分流动并引导回结晶阶段的内部循环，而不会先前溶解其中所含的固体比例。

2. 发明申请

US20130230446A1 METHOD FOR PRODUCING A COARSE-GRAINED AMMONIUM SULFATE PRODUCT VIA CRYSTALLIZATION AND INSTALLATION FOR OPERATING THE METHOD 有权
标题翻译：通过结晶化和安装方法生产粗粒度硫酸亚铁产品的方法
公开(公告)号：US20130230446A1
公开(公告)日：2013-09-05
申请号：US13780297
申请日：2013-02-28
申请人： GEA MESSO GMBH
发明人： Guenter Hofmann , Holger Leptien , Johannes Widua
IPC分类号： B01D9/00
CPC分类号： B01D9/0036 , B01D9/0022 , B01D9/0031 , B01D9/0059 , C01C1/248
摘要： Method for the production of a coarse-grained ammonium sulphate product by crystallization and installation for carrying out the method. A method for the continuous production of a coarse-grained ammonium sulphate product from an ammonium sulphate solution in a crystallizer operates in accordance with the DTB principle and has an internal suspension circuit and a clarifying zone, from which a clarified partial flow of solution is constantly drawn off into an external circuit, is heated in a heat exchanger so as to dissolve the solids contained therein and is then guided back as a clear solution into the lower region of the crystallizer. In order to ensure production of a product crystallizate with a grain coarseness which is practically constant over time, a fine crystal suspension flow may be drawn off from the clarifying zone as a further partial flow and guided back into the internal circuit of the crystallization stage without any previous dissolution of the solid proportion contained therein.
摘要翻译：通过结晶和安装来实施该方法生产粗粒度硫酸铵产品的方法。在结晶器中从硫酸铵溶液连续生产粗粒度硫酸铵产品的方法根据DTB原理进行操作，并且具有内部悬浮电路和澄清区，澄清的部分溶液流从其中恒定地被排出到外部回路中，在热交换器中被加热以便溶解其中所含的固体，然后作为透明溶液被引导回到结晶器的下部区域。为了确保产生晶粒粗糙度随着时间的推移实际上恒定的晶粒细化物，可以将澄清区域中的细晶体悬浮液流作为另外的部分流动而被引回到结晶阶段的内部回路而没有任何先前溶解的固体比例都包含在其中。

3. 发明申请

US20070231238A1 METHOD AND PLANT FOR DEPLETING SODIUM THIOCYANATE IN WASHING LIQUORS AND FOR OBTAINING PURE SODIUM THIOCYANATE 审中-公开
标题翻译：用于在洗涤液中除去硫酸钠的方法和设备以及获得纯硫酸钠
公开(公告)号：US20070231238A1
公开(公告)日：2007-10-04
申请号：US11694285
申请日：2007-03-30
申请人： Wilhelm Hinsen , Hermann Plate , Gunter Hofmann , Christian Melches
发明人： Wilhelm Hinsen , Hermann Plate , Gunter Hofmann , Christian Melches
IPC分类号： C01B21/093
CPC分类号： C01C3/20
摘要： A method and apparatus are provided for depleting sodium thiocyanate (NaSCN) from washing solutions to obtain pure sodium thiocyanate. By adding an anti-solvent such as ethanol, which acts as anti-solvent for the main part of the accompanying salts in the solution, the major part of these accompanying salts can be separated by precipitation in a crystallization and removed, for example, by filtration, whereas the NaSCN remains in the solution. After separating the anti-solvent from the remaining aqueous solution in a rectification, a very pure crystallized NaSCN is produced in a NaSCN crystallization. After washing in a counterstream washing apparatus, the obtained crystallized NaSCN product has a purity of at least 99%.
摘要翻译：提供了一种从洗涤溶液中消耗硫氰酸钠（NaSCN）以获得纯硫氰酸钠的方法和装置。通过在溶液中加入作为伴随盐的主要部分作为反溶剂的反溶剂如乙醇，这些伴随的盐的主要部分可以通过在结晶中沉淀而分离并除去，例如通过过滤，而NaSCN保留在溶液中。在精馏后从剩余的水溶液中分离出反溶剂后，在NaSCN结晶中产生非常纯的结晶NaSCN。在逆流洗涤装置中洗涤后，得到的结晶NaSCN产物的纯度至少为99％。

4. 发明授权

US08486158B2 Method and device for continuously producing a crystallite having a constant particle size distribution 有权
标题翻译：用于连续生产具有恒定粒度分布的微晶的方法和装置
公开(公告)号：US08486158B2
公开(公告)日：2013-07-16
申请号：US12993694
申请日：2009-06-10
申请人： Reinhard Scholz , Günter Hofmann
发明人： Reinhard Scholz , Günter Hofmann
IPC分类号： B01D9/00
CPC分类号： C01C1/242 , B01D9/0022 , B01D9/0036 , B01D9/0063 , C01C1/248 , C01P2004/51
摘要： The invention proposes a method and a device for continuously producing a crystallite, wherein a metered amount of seed crystals is fed continuously to the internal solution circuit of a crystallizer, in particular a DTB crystallizer, through a crystallization seed line from a seed generator preferably designed as a flash crystallizer. The amount of seed crystals fed is controlled by an electronic control system as a function of a measured value determined by a sensor, said value being representative of the particle size distribution of the crystallites in the solution in the internal circuit in the crystallizer. By way of a line, the seed generator receives a partial stream of the external solution circuit of the crystallizer, said external circuit being routed through a line. Excess fine crystalline suspension can be fed back to the external circuit from the seed generator by way of a return line.
摘要翻译：本发明提出了一种用于连续生产微晶的方法和装置，其中将一定数量的晶种连续地送入结晶器，特别是DTB结晶器的内部溶液回路，通过晶种生长线从种子发生器中优选设计作为闪光结晶器。通过电子控制系统控制晶种的量作为由传感器确定的测量值的函数，所述值代表结晶器内部电路中的溶液中的微晶的粒度分布。通过线路，种子发生器接收结晶器的外部溶液电路的部分流，所述外部电路通过线路。过多的细晶悬浮液可以通过回流线从种子发生器反馈到外部电路。

5. 发明申请

US20110061205A1 METHOD AND DEVICE FOR CONTINUOUSLY PRODUCING A CRYSTALLITE HAVING A CONSTANT PARTICLE SIZE DISTRIBUTION 有权
标题翻译：用于连续生产具有恒定颗粒尺寸分布的晶体的方法和装置
公开(公告)号：US20110061205A1
公开(公告)日：2011-03-17
申请号：US12993694
申请日：2009-06-10
申请人： Reinhard Scholz , Günter Hofmann
发明人： Reinhard Scholz , Günter Hofmann
IPC分类号： B01D9/02
CPC分类号： C01C1/242 , B01D9/0022 , B01D9/0036 , B01D9/0063 , C01C1/248 , C01P2004/51
摘要： The invention proposes a method and a device for continuously producing a crystallite, wherein a metered amount of seed crystals is fed continuously to the internal solution circuit of a crystallizer, in particular a DTB crystallizer, through a crystallization seed line from a seed generator preferably designed as a flash crystallizer. The amount of seed crystals fed is controlled by an electronic control system as a function of a measured value determined by a sensor, said value being representative of the particle size distribution of the crystallites in the solution in the internal circuit in the crystallizer. By way of a line, the seed generator receives a partial stream of the external solution circuit of the crystallizer, said external circuit being routed through a line. Excess fine crystalline suspension can be fed back to the external circuit from the seed generator by way of a return line.
摘要翻译：本发明提出了一种用于连续生产微晶的方法和装置，其中将一定数量的晶种连续地送入结晶器，特别是DTB结晶器的内部溶液回路，通过晶种生长线从种子发生器中优选设计作为闪光结晶器。通过电子控制系统控制晶种的量作为由传感器确定的测量值的函数，所述值代表结晶器内部电路中的溶液中的微晶的粒度分布。通过线路，种子发生器接收结晶器的外部溶液电路的部分流，所述外部电路通过线路。过多的细晶悬浮液可以通过回流线从种子发生器反馈到外部电路。

6. 发明授权

US07942939B2 Method and facility for producing a coarse-grained ammonium sulfate product by crystallization 有权
标题翻译：用于通过结晶生产粗粒度硫酸铵产品的方法和用于执行该方法的设备
公开(公告)号：US07942939B2
公开(公告)日：2011-05-17
申请号：US12863661
申请日：2009-01-23
申请人： Günter Hofmann , Reinhard Scholz
发明人： Günter Hofmann , Reinhard Scholz
IPC分类号： B01D9/00
CPC分类号： C05C3/005 , B01D9/0022 , B01D9/0036 , B01D9/0063 , C01C1/248
摘要： A method and installation for the production of a coarse-grained ammonium sulfate product by crystallization includes firstly generating a crystal having a grain smaller than the desired grain size in a pre-crystallizer and withdrawing a suspension therefrom, from which the fine crystal was previously separated in a classification connecting piece. This suspension, which contains medium-sized grain, is then conducted with a proportion of undersaturated mother liquor, which is sufficient for further crystal growth, into a DTB product crystallizer and crystallized therein to a desired grain size. The heating of the product crystallizer is performed by the heat contained in the vapors of the pre-crystallization. The pre-crystallization may also operate according to the DTB principle, wherein the mother liquor needed for crystallization is supplied in the form of separately admixed concentrated sulfuric acid and ammonia into the external solution loop of the pre-crystallizer. The reaction heat released in this case may be sufficient for the operation of the entire process.
摘要翻译：用于通过结晶生产粗粒度硫酸铵产品的方法和装置包括首先在预结晶器中产生晶粒小于预结晶器中的所需晶粒尺寸的晶体并从其中取出悬浮液，预先分离出细晶体在分类连接件中。然后将含有中等粒度的这种悬浮液用一定比例的足够进一步晶体生长的不饱和母液进入DTB产物结晶器中并在其中结晶至所需的晶粒尺寸。产物结晶器的加热通过预结晶蒸汽中所含的热量进行。预结晶也可以根据DTB原理操作，其中结晶所需的母液以单独混合的浓硫酸和氨的形式供应到预结晶器的外溶液环中。在这种情况下释放的反应热可能对于整个过程的操作是足够的。

7. 发明申请

US20110038781A1 METHOD FOR PRODUCING A COARSE-GRAINED AMMONIUM SULFATE PRODUCT BY CRYSTALLIZATION AND FACILITY FOR PERFORMING THE METHOD 有权
标题翻译：通过结晶和生产粗糙度硫酸铵产品的方法，用于实施方法
公开(公告)号：US20110038781A1
公开(公告)日：2011-02-17
申请号：US12863661
申请日：2009-01-23
申请人： Günter Hofmann , Reinhard Scholz
发明人： Günter Hofmann , Reinhard Scholz
IPC分类号： C01B21/086 , B01D9/00
CPC分类号： C05C3/005 , B01D9/0022 , B01D9/0036 , B01D9/0063 , C01C1/248
摘要： A method and installation for the production of a coarse-grained ammonium sulfate product by crystallization includes firstly generating a crystal having a grain smaller than the desired grain size in a pre-crystallizer and withdrawing a suspension therefrom, from which the fine crystal was previously separated in a classification connecting piece. This suspension, which contains medium-sized grain, is then conducted with a proportion of undersaturated mother liquor, which is sufficient for further crystal growth, into a DTB product crystallizer and crystallized therein to a desired grain size. The heating of the product crystallizer is performed by the heat contained in the vapors of the pre-crystallization. The pre-crystallization may also operate according to the DTB principle, wherein the mother liquor needed for crystallization is supplied in the form of separately admixed concentrated sulfuric acid and ammonia into the external solution loop of the pre-crystallizer. The reaction heat released in this case may be sufficient for the operation of the entire process.
摘要翻译：用于通过结晶生产粗粒度硫酸铵产品的方法和装置包括首先在预结晶器中产生晶粒小于预结晶器中的所需晶粒尺寸的晶体并从其中取出悬浮液，预先分离出细晶体在分类连接件中。然后将含有中等粒度的这种悬浮液用一定比例的足够进一步晶体生长的不饱和母液进入DTB产物结晶器中并在其中结晶至所需的晶粒尺寸。产物结晶器的加热通过预结晶蒸汽中所含的热量进行。预结晶也可以根据DTB原理操作，其中结晶所需的母液以单独混合的浓硫酸和氨的形式供应到预结晶器的外溶液环中。在这种情况下释放的反应热可能对于整个过程的操作是足够的。

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