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公开(公告)号：US08414843B2
公开(公告)日：2013-04-09
申请号：US12666854
申请日：2008-06-23
申请人： Michel Malfand
发明人： Michel Malfand
IPC分类号： B01D9/00
CPC分类号： B01D9/0031 , B01D9/0036 , B01D9/004 , C01C1/248 , Y10T117/10
摘要： A crystallizer for crystallizing solute contained in a solution has first (2) and second (1) communicating chambers, for the solution, and a heat exchanger (20) for keeping a state of supersaturation therein. A first circuit extracts from a calm zone (15) of the latter chamber a first stream of liquid containing small crystals and recycles this stream into the first chamber. A second circuit extracts from the second chamber a second stream of liquid containing coarse crystals and brings this second stream into the first chamber. The downstream end (26) of the first circuit runs into the second circuit so that the first and second liquid streams are made to flow in the same direction into said second circuit.
摘要翻译： 用于使包含在溶液中的溶质结晶的结晶器具有用于溶液的第一（2）和第二（1）连通室，以及用于保持其中过饱和状态的热交换器（20）。 第一回路从后者室的平静区（15）中提取含有小晶体的第一液体流并将其再循环到第一室中。 第二回路从第二室提取含有粗晶体的第二液体流，并将该第二流引入第一室。 第一电路的下游端（26）进入第二电路，使得第一和第二液流使得沿相同方向流入所述第二电路。
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2.发明授权Method and facility for producing a coarse-grained ammonium sulfate product by crystallization 有权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。
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3.发明申请公开(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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公开(公告)号：US06887452B1
公开(公告)日：2005-05-03
申请号：US09702494
申请日：2000-10-31
CPC分类号： C01D5/145 , B01D9/0031 , B01D9/0059 , B01D53/504 , C01C1/248
摘要： A system and method for producing salts using a crystallizer with an integrated column is disclosed. In the column, liquid, containing one reactant, absorbs a second reactant, from the gas stream. The second reactant reacts with the first reactant to produce salt. Liquid leaving the column and rich in salt, collects in the crystallizer. Conditions within the crystallizer promote nucleation and crystal growth. A recirculation system withdraws a portion of liquid from the crystallizer for introduction into the column.
摘要翻译： 公开了一种使用具有集成柱的结晶器生产盐的系统和方法。 在塔中，含有一种反应物的液体从气流中吸收第二反应物。 第二反应物与第一反应物反应产生盐。 液体离开色谱柱并富含盐，收集在结晶器中。 结晶器中的条件促进成核和晶体生长。 再循环系统从结晶器中取出一部分液体以引入塔中。
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公开(公告)号：US3598544A
公开(公告)日：1971-08-10
申请号：US3598544D
申请日：1969-12-22
申请人： DOW CHEMICAL CO
发明人： TEOT ARTHUR S
摘要： DISCLOSED HEREIN IS AN IMPROVED METHOD FOR CRYSTALLIZING AMMONIUM SULPHATE, POTASSIUM NITRATE, OR POTASSIUM CHROMATE BY COOLING AN AQUEOUS SYSTEM WHEREIN ONE OF THESE THREE SALTS IS DISSOLVED. THE IMPROVEMENT COMPRISES ADDING A SMALL AMOUNT OF AN AMMONIUM, SODIUM, OR POTASSIUM ALKYLATED DIPHENYL ETHER MONO- OR DISULPHONATE TO THE CRYSTALLIZING SYSTEM. THE SULPHONATE IS CHARACTERIZED BY THE FORMULA: RN-(AR-O-AR)-(SO3-X)M WHEREIN THE ENCLOSED MOLECULAR NUCLEUS REPRESENTS A NONHALOGENATED DIARYL OXIDE IN WHICH AR IS A MONOCYCLIC AROMATIC RADICAL OF THE BENZENE SERIES, R IS A HYDROPHOBIC SUBSTITUENT CONTAINING FROM 8 TO 48 CARBON ATOMS, INCLUSIVE IN CONTINUOUS CARBON-CARBON BONDS, IS AN AN INTEGER FROM 1 TO 3, AND M IS AN INTEGER FROM 1 TO 2. THE "X" PORTION OF THE SULPHONATE GROUP IS A HYDROGEN DISPLACEABLE ION. SUITABLE IONS ARE SODIUM, POTASSIUM AND AMMONIUM. THE RESULTING CRYSTALS ARE LARGER AND MORE REGULARLY SHAPED THAN CRYSTALS PRODUCED BY PRIOR ART METHODS.
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7.发明授权
公开(公告)号：US2616788A
公开(公告)日：1952-11-04
申请号：US8572849
申请日：1949-04-05
申请人： ICI LTD
发明人： ALEXANDER BUTCHART , JOHN WHETSTONE
IPC分类号： C01C1/248
CPC分类号： C01C1/248
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公开(公告)号：US09908785B2
公开(公告)日：2018-03-06
申请号：US14899579
申请日：2014-06-20
申请人： CAP III B.V.
IPC分类号： B01D9/00 , C01C1/24 , C01C1/248 , C07D201/16 , C07D201/04 , C07C249/08
CPC分类号： C01C1/24 , B01D9/0022 , B01D9/0031 , B01D9/004 , B01D9/0063 , B01D2009/0086 , C01C1/248 , C07C249/08 , C07C2601/14 , C07D201/04 , C07D201/16 , C07C251/44
摘要： The present invention provides a continuous process for producing ammonium sulfate crystals, wherein said process comprises: (a) feeding to a first group of crystallization sections, which crystallization sections are heat integrated in series, a first aqueous ammonium sulfate solution that contains one or more impurities; (b) feeding to a second group of crystallization sections, which crystallization sections are heat integrated in series, a second aqueous ammonium sulfate solution that contains one or more impurities; (c) crystallizing ammonium sulfate crystals in each crystallization section respectively from each of said solutions of ammonium sulfate that contain one or more impurities; (d) purging a fraction of the ammonium sulfate solution that contains one or more impurities from each of said crystallization sections; and (e) discharging ammonium sulfate crystals from each crystallization section, characterized in that: (i) both the first group of crystallization sections and the second group of crystallization sections are together heat integrated in one series of crystallization sections; wherein the first group of crystallization sections operates at higher temperature than the second group of crystallization sections; and (ii) the composition of the first aqueous ammonium sulfate solution that contains one or more impurities is different to the composition of the second aqueous ammonium sulfate solution that contains one or more impurities. Further provided is apparatus suitable for producing ammonium sulfate crystals.
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9.发明申请Process for size classifying ammonium sulfate crystals which are present in a suspension 失效存在于悬浮液中的硫酸铵晶体尺寸分级方法公开(公告)号：US20050006503A1
公开(公告)日：2005-01-13
申请号：US10474439
申请日：2002-04-05
CPC分类号： C01C1/248
摘要： The invention relates to a process for size classifying ammonium sulfate crystals using a screen, said process comprising feeding a feed suspension to the screen, said feed suspension comprising said ammonium sulfate crystals in an ammonium sulfate solution, size classifying the ammonium sulfate crystals, and keeping both sides of the screen immersed in liquid during said size classifying.
摘要翻译： 本发明涉及一种使用筛网对硫酸铵晶体进行尺寸分级的方法，所述方法包括将进料悬浮液进料到筛网中，所述进料悬浮液包含硫酸铵溶液中的硫酸铵晶体，将硫酸铵晶体分级，并保持 在筛分过程中，屏幕两侧浸入液体。
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10.发明授权
公开(公告)号：US5330544A
公开(公告)日：1994-07-19
申请号：US825739
申请日：1992-01-27
CPC分类号： C01C1/248 , Y10S423/16 , Y10T117/1024
摘要： The average size of ammonium sulfate crystals is increased by passing undersized ammonium sulfate crystals through a multistage apparatus in which the crystals are contacted with an aqueous ammonium sulfate spray in a first heated chamber to increase the average size of the crystals, the enlarged crystals thereafter passing through a second heated chamber to dry the enlarged crystals.
摘要翻译： 通过将不足的硫酸铵晶体通过多级装置来增加硫酸铵晶体的平均尺寸，其中晶体在第一加热室中与硫酸铵水溶液喷雾接触以增加晶体的平均尺寸，其后经过的扩大的晶体经过 通过第二加热室来干燥放大的晶体。
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