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公开(公告)号：EP1407805A1
公开(公告)日：2004-04-14
申请号：EP02078710.7
申请日：2002-09-10
IPC分类号： B01D9/02
CPC分类号： B01D9/0013 , B01D9/0059
摘要： The invention relates to a crystallization method for forming crystals of a substance in a solution, a suspension, or a mixture of liquids, in particular ice crystals from an aqueous solution or organic crystals from an organic melt. The method comprises the steps of crystallizing the solution to form a crystal slurry by means of cooling in a heat exchanger and feeding the crystal slurry from an outflow side of the heat exchanger to an inflow side of the heat exchanger via a recirculation duct and separating at least a part of the crystals from the liquid. A recirculation pump is included in the recirculation duct wherein the slurry is continuously supplied through the recirculation duct such that the crystals are homogeneously distributed in the duct and the heat exchanger and such that the under cooling at the outlet of the heat exchanger is the equilibrium temperature T eq minus 0.5 to 0.9 times the meta-stable region ΔT max .
摘要翻译： 用于在溶液，悬浮液或液体混合物中形成晶体的结晶方法，特别是来自有机熔体的水溶液或有机晶体的冰晶，包括将再循环泵包括在再循环管道中，其中晶体浆料 通过管道连续供应，使得晶体均匀分布在管道和热交换器中。 用于在溶液，悬浮液或液体混合物中形成晶体的结晶方法，特别是来自水溶液的冰晶体或来自有机熔体的有机晶体的结晶方法包括使溶液结晶以通过在 热交换器; 将所述晶体浆料从所述热交换器的流出侧经由再循环管道供给到所述热交换器的流入侧; 并将一部分晶体与液体分离。 再循环泵（6）包括在再循环管道中，其中浆料通过再循环管道连续供应，使得晶体均匀分布在管道和热交换器中，并且使得在出口（4）处的冷却 热交换器是平衡温度（Teq）减去元稳定区域的0.5-0.9倍（ΔTmax）。 还包括用于结晶器组件的独立权利要求，其包括具有入口（3）和用于形成晶体浆料的出口的热交换器; 连接在入口和出口之间用于再循环晶体浆料并在热交换器中从出口到入口形成的再循环管道（5） 和连接到热交换器上以从浆料中分离晶体的分离器（8）。 在热交换器的出口和入口之间的再循环路径中不包括过滤器或分离器。
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12.发明公开Method and installation for the crystallisation of liquids 审中-公开Verfahren und Anlage zum Kristallisieren vonFlüssigkeiten
公开(公告)号：EP1060775A1
公开(公告)日：2000-12-20
申请号：EP00202116.0
申请日：2000-06-16
IPC分类号： B01D9/00
CPC分类号： B01D9/0022 , B01D9/0036 , B01D9/0059
摘要： The invention comprises an installation (1) for crystallising a liquid from a solution, for example for freeze-concentrating effluent, having a nucleation zone (2), a ripening zone (3) and a separator (4). According to the invention the nucleation zone (2) is constructed as a vacuum crystalliser, such that the installation is of relatively simple and inexpensive construction, can easily be scaled up and is suitable for concentrating liquids containing undissolved particles, such as, for example, precipitated salts. The separator (4) preferably comprises a washing column.
摘要翻译： 本发明包括一种用于使来自溶液的液体结晶的装置（1），例如具有成核区（2），成熟区（3）和分离器（4）的冷冻浓缩流出物。 根据本发明，成核区（2）被构造为真空结晶器，使得该装置相对简单且廉价的结构，可以容易地放大并且适用于浓缩含有未溶解颗粒的液体，例如， 沉淀盐。 分离器（4）优选包括洗涤塔。
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公开(公告)号：EP0936186A1
公开(公告)日：1999-08-18
申请号：EP99200413.5
申请日：1999-02-12
发明人： Ruemekorf, Ray Sircy
IPC分类号： C02F1/04
摘要： The invention relates to an apparatus for the cleaning of waste streams comprising water containing dissolved noxious substances and volatile organic compounds, comprising a distillation unit (1) with a first drainage pipe (2) for removing the distillate to a processing apparatus (8) and a second drainage pipe (3) which is connected to a freeze-concentration unit (5), which freeze-concentration unit comprises a water drain (6), as well as a drainage pipe (7) for removing the freeze-concentrate to the processing unit.
By removal of the volatile compounds from the waste streams, the freeze-concentration unit can be effectively and efficiently applied. Freeze concentrate from the freeze-concentration unit (5) can be supplied to an incinerator wherein, by removal of the water, a considerable energy-saving can be obtained.摘要翻译： 本发明涉及一种用于清洁含有溶解的有毒物质和挥发性有机化合物的水的废物流的装置，包括具有第一排水管（2）的蒸馏单元（1），用于将馏出物除去到处理设备（8）和 连接到冷冻浓缩单元（5）的第二排水管（3），该冷冻浓缩单元包括排水口（6），以及用于将冷冻浓缩物去除的排水管（7） 处理单元。 通过从废物流中除去挥发性化合物，可以有效和高效地应用冷冻浓缩单元。 来自冷冻浓缩单元（5）的冷冻浓缩物可以供给到焚化炉，其中通过除去水可以获得相当大的节能。
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14.发明公开Method and apparatus for freeze-concentrating substances 审中-公开Gefrierkonzentrationssystem von Substanzen und Verfahren
公开(公告)号：EP0923969A1
公开(公告)日：1999-06-23
申请号：EP98204274.9
申请日：1998-12-16
IPC分类号： B01D9/04
CPC分类号： B01D9/0022 , B01D9/0031 , B01D9/0036
摘要： The invention relates to a crystallization apparatus and to a method for crystallizing a liquid from a solution, a mixture of liquids or a suspension. The apparatus comprises a growth zone (4) in a vertically positioned tank (2), which growth zone is positioned below a nucleation zone (5). Via a delivery line (13) the seed crystals are fed from the nucleation zone to the bottom end of the growth zone. In the growth zone the ice slurry slowly moves in a vertical direction at such a low velocity that heavier particles are able to precipitate and to be discharged at the bottom end. Preferentially, the nucleation zone comprises a vacuum apparatus for effecting a reduction in pressure in the nucleation zone to between 10 -4 and 7·10 -3 bar. Using the apparatus according to the present invention it is possible for waste water and effluent to be concentrated in a simple manner, clogging of, for example, filters owing to the settling of solid particles being prevented.
摘要翻译： 本发明涉及一种结晶装置和一种从溶液，液体或悬浮液的混合物中使液体结晶的方法。 该装置包括在垂直定位的罐（2）中的生长区（4），该生长区位于成核区（5）的下方。 通过输送管线（13），晶种从成核区域进料到生长区域的底端。 在生长区中，冰浆以如此低的速度在垂直方向缓慢移动，使得较重的颗粒能够沉淀并在底端排出。 优选地，成核区域包括用于将成核区域中的压力降低至10 -4和7.10 -3巴之间的真空装置。 使用根据本发明的装置，废水和流出物可以以简单的方式集中，例如由于防止固体颗粒沉降而堵塞例如过滤器。
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15.发明公开Process for producing concentrated food liquids 失效Verfahren zur Herstellung von konzentriertenNahrungsflüssigkeiten。
公开(公告)号：EP0424999A1
公开(公告)日：1991-05-02
申请号：EP90202524.6
申请日：1990-09-24
摘要： Proces for freeze-concentrating food liquids such as fruit juices, coffee extracts, beer and so forth, in which the substance to be treated is conveyed through a multi-stage freeze concentrator and is conveyed from the freeze concentrator stage with the highest concentration to a module in which the concentration, and thus the viscosity, is increased by crystallization, and a partial separation of mother liquor is obtained by means of a centrifuge.
摘要翻译： 用于冷冻浓缩食品液体如果汁，咖啡提取物，啤酒等的处理剂，其中待处理的物质通过多级冷冻浓缩器输送并且以最高浓度从浓缩器级输送到 模块，其中通过结晶增加浓度，从而增加粘度，并通过离心机获得母液的部分分离。
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公开(公告)号：EP2121651A2
公开(公告)日：2009-11-25
申请号：EP07808554.5
申请日：2007-08-28
IPC分类号： C07D319/12
CPC分类号： C07D319/12
摘要： The invention relates to a method for the purification or recovery of lactide rich streams by the combination of a suspension-based melt crystallization process with a subsequent separation of the pure lactide crystals in a wash column.
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公开(公告)号：EP1970349A2
公开(公告)日：2008-09-17
申请号：EP08152753.3
申请日：2008-03-14
IPC分类号： C01B25/234 , C01B25/238
CPC分类号： C01B25/234 , C01B25/238
摘要： The invention relates to a method for the purification or recovery of orthophosphoric acid rich streams by suspension-based melt crystallization. The orthophosphoric acid is crystallized as the hemi-hydrate form and subsequent separation of such crystals in a wash-column produce a high purity acid/water solution that has been depleted of most of the metals and impurities other than water, thereby separating an orthophosphoric acid rich feed liquor into an ultra-pure orthophosphoric acid hemi-hydrate and a mother liquor containing almost all impurities originally present in the feed. The orthophosphoric acid rich feed liquor typically contains no more than 15wt% water and 1wt% other impurities. Individual metal ion composition in the purified orthophosphoric acid product is in the range of 100 to1000 ppb (parts per billion = 1/1000 ppm) of each metal ion. The metal ion composition of the resulting purified product is thus typically below the detection limit of typical analysis equipment.
摘要翻译： 本发明涉及通过基于悬浮液的熔融结晶来纯化或回收富含正磷酸的料流的方法。 正磷酸作为半水合物形式结晶，随后在洗涤塔中分离这种晶体产生高纯度的酸/水溶液，其已经耗尽大部分除水以外的金属和杂质，从而分离出正磷酸 富含原料液转化为超纯正磷酸半水合物和含有原料存在于饲料中几乎所有杂质的母液。 正磷酸的进料液体通常含有不超过15重量％的水和1重量％的其它杂质。 纯化的正磷酸产物中的各种金属离子组成在每个金属离子的100至1000ppb（每十亿分之一1/1000ppm）的范围内。 因此，所得纯化产物的金属离子组成通常低于典型分析设备的检测限。
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公开(公告)号：EP0948984B1
公开(公告)日：2004-09-29
申请号：EP99201088.4
申请日：1999-04-06
IPC分类号： B01D9/00
CPC分类号： B01D9/0013 , B01D9/0036 , B01D9/004 , B01D9/0045
摘要： The present invention relates to a method and installation for the crystallisation of a liquid from a solution, a suspension or a mixture of liquids using a crystalliser which, for example, is provided on its wall with a heat exchanger and comprises a single chamber for both nucleation and growth. Depleted mother liquor is withdrawn from the crystallisation vessel via a filter located in the crystalliser, so that the crystal content in the vessel can be accurately adjusted for the purpose of optimum separation of the crystals, preferably using a packed-bed wash column. The crystalliser preferably contains a stirrer with the filter on the stirrer shaft. The filter rotates past a scraper, which is arranged in a fixed position, as a result of which the filter cake can be reintroduced into the suspension without damage to the crystals.
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公开(公告)号：EP2080545A1
公开(公告)日：2009-07-22
申请号：EP08150404.5
申请日：2008-01-18
IPC分类号： B01D9/00
CPC分类号： B01D9/0013 , B01D9/0045
摘要： The invention is directed to a method and apparatus for solid liquid separation, in particular to wash columns and methods employing wash column technology for separating crystals from their slurry while simultaneously purifying the crystals.
In one aspect the invention provides a process for processing a suspension, which suspension comprises solid particles which are present in a liquid, wherein the liquid is separated from the solid particles in a wash column, wherein on the inside of said column a wash front is formed, which wash front separates an unwashed zone and a pure melt zone, characterized in that on the outside of the column at least two separate heaters are present, each of which can heat independently at least part of said unwashed zone and at least part of said pure melt zone, respectively.
In a further aspect the invention provides a wash column having at least two separate heaters on the outside.摘要翻译： 本发明涉及一种用于固液分离的方法和装置，特别是洗涤柱和使用洗柱技术从其浆料中分离晶体同时纯化晶体的方法和方法。 在一个方面，本发明提供了一种处理悬浮液的方法，该悬浮液包含存在于液体中的固体颗粒，其中液体在洗涤塔中与固体颗粒分离，其中在所述塔的内侧，洗涤前沿 形成的洗涤前部分离未洗涤区域和纯熔体区域，其特征在于，在塔的外侧上存在至少两个单独的加热器，每个加热器可独立地加热至少部分所述未洗涤区域和至少部分 分别表示纯熔体区。 在另一方面，本发明提供了一种在外部具有至少两个单独的加热器的洗涤塔。
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20.发明授权HYDRAULIC ANNULAR WASHING COLUMN, AND PROCESS FOR SEPARATING SOLIDS FROM A SUSPENSION 有权环形液压洗涤塔和方法分离出固体从悬浮物
公开(公告)号：EP1427502B1
公开(公告)日：2005-11-30
申请号：EP02760891.8
申请日：2002-09-19
CPC分类号： B01D9/00 , B01D29/114 , B01D29/117 , B01D29/54 , B01D29/78
摘要： The invention is directed to an apparatus for separating solids from a suspension comprising: a hollow cylindrical column having a central axis therethrough, said column having an interior with a cross-section, perpendicular to said axis, that is constant along said axis, and that extends from a first end to a second end of the said column one central tube axially disposed in said column and extending from said one end toward said opposite end, said central tube having an outer wall of constant diameter, said cylindrical column and said central tube defining an annular zone between them, extending axially from said first end of the column to at least near said second end of the column; at least one filter in said outer wall of the said central tube, forming the only direct communication between the said annular zone and the interior of the tube and at least one filter in the outer wall of said hollow cylindrical column; means for supplying a suspension to said first end of the column; means for removing suspension at said second end of the column; said interior defining a concentration zone means communicating with the interior of said central tube for removing liquid passed through said filter in said outer wall of the said central tube and means for removing liquid passed through filter in the outer wall of said hollow cylindrical column; means acting on the liquid of said suspension for urging said liquid through said annular zone towards said filters.
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