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公开(公告)号：EP1970349B1
公开(公告)日：2017-09-27
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
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公开(公告)号：EP2121651B1
公开(公告)日：2014-06-25
申请号：EP07808554.5
申请日：2007-08-28
IPC分类号： C07D319/12
CPC分类号： C07D319/12
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3.发明公开Method and apparatus for recovering a pure substance from an impure solution by crystallization 有权用于从通过结晶的不纯溶液中回收纯物质的方法和装置
公开(公告)号：EP1398064A1
公开(公告)日：2004-03-17
申请号：EP02078711.5
申请日：2002-09-10
IPC分类号： B01D9/02
CPC分类号： B01D9/0013 , B01D9/004 , B01D9/0059
摘要： The invention relates to an apparatus for the purification of a substance from a solution, a suspension or a mixture of liquids by crystallization, preferably in a continuous manner. The apparatus comprises a first crystallizer (1c) comprising an input (1) for receiving a liquid comprising the substance and an output (4) for discharging a slurry of liquid and crystals. The apparatus comprises also a first separator (1s) connected to the output 4 of the first crystallizer (1c) having a product output (2), and being with a residue output (5) connected to an input of a second crystallizer (2c), and a second separator (2s) being with an input connected to an output (6) of the second crystallizer (2c), a crystal output (7) of the second separator (2s) being connected to an input of the first crystallizer (1c).
摘要翻译： 的纯化级结晶（1c）中接收的液体，其包括该物质，并排出物质的液体和晶体的浆料。 甲分离器接收的浆料，和残渣输出到回收阶段结晶器（2c）和所述物质的纯晶体。 的分离器从结晶器（2c）的接收晶体和液体残留物的浆液，并输出该物质的晶体到结晶（1C）。 因此独立claimsoft包括用于物质的纯化方法。
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公开(公告)号：EP0936186B1
公开(公告)日：2003-03-26
申请号：EP99200413.5
申请日：1999-02-12
发明人： Ruemekorf, Ray Sircy
IPC分类号： C02F1/04
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公开(公告)号：EP0948984A1
公开(公告)日：1999-10-13
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 Depleted mother liquor is withdrawn from the crystallisation vessel via a filter located in the crystalliser, so that the crystal content in the vessel can be accurately adjusted for the purpose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.摘要翻译： 本发明涉及使用结晶器从溶液，悬浮液或液体混合物中结晶液体的方法和装置，该结晶器例如在其壁上设置有热交换器，并且包括用于两者的单个室 成核和生长。 通过位于结晶器中的过滤器将贫化的母液从结晶容器中排出，从而可以精确地调整容器中的晶体含量，以便最佳地分离晶体，优选使用填充床洗涤柱。 结晶器优选地包含具有在搅拌器轴上的过滤器的搅拌器。 过滤器旋转经过设置在固定位置的刮刀，由此可以将滤饼重新引入悬浮液而不损坏晶体。
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公开(公告)号：EP0920894A1
公开(公告)日：1999-06-09
申请号：EP98203976.0
申请日：1998-11-25
CPC分类号： B01D33/015 , B01D33/466 , B01D33/60
摘要： The invention relates to an installation for separating and purifying solids from a suspension and/or for leaching out solid particles, having a cylinder (22) having a piston (23) movable therein. A sealing part (24) of the piston is in contact with the interior wall of the cylinder. A filter (27) is positioned some distance away from the sealing part of the piston. A discharge chamber (29) is located between the filter and the sealing part of the piston. A pump chamber (30) is formed below the sealing part of the piston and a washing column (28) chamber containing a packed bed of solid particles is formed above the filter. During a downward pump stroke of the piston, suspension is forced, via at least one connecting channel (26) between the pump chamber and the washing column chamber, to the washing column chamber. During a compression stroke, liquid is brought via the filter to the discharge chamber and discharged via a discharge line (35). Solid particles, such as crystals, remain behind on the filter and are compressed against the packed bed. The connecting channel can be located inside the cylinder. In that case the piston has a conical jacket with a streamlined non-return valve (40,Figs.2,3). The connecting channel between pump chamber and washing column chamber can also be located outside the cylinder (51,Fig.5A). The installation according to the invention has relatively simple seals and feed and discharge lines fixed to the cylinder in a stationary position. The installation can also be scaled up easily.
摘要翻译： 本发明涉及一种用于从悬浮液中分离和纯化固体和/或用于浸出固体颗粒的装置，其具有可在其中活动的活塞（23）的圆筒（22）。 活塞的密封部分（24）与气缸的内壁接触。 过滤器（27）离开活塞的密封部分一定距离。 排出室（29）位于过滤器和活塞的密封部分之间。 在活塞的密封部下方形成有泵室（30），在过滤器的上方形成有容纳固体粒子的填充床的清洗柱（28）。 在活塞的向下泵冲程期间，通过泵室和洗涤柱室之间的至少一个连接通道（26）将悬浮液强制到洗涤塔室。 在压缩冲程期间，通过过滤器将液体通过排出室排出，并通过排出管线（35）排出。 诸如晶体的固体颗粒保留在过滤器的后面并且压靠在填充床上。 连接通道可以位于气缸内。 在这种情况下，活塞具有带有流线型止回阀（40，图2,3）的圆锥形夹套。 泵室和洗涤柱室之间的连接通道也可以位于气缸外部（51A，图5A）。 根据本发明的装置具有相对简单的密封和在静止位置固定到气缸的进料和排出管线。 安装也可以轻松放大。
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公开(公告)号：EP1970349A3
公开(公告)日：2009-09-02
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.
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8.发明授权Method and apparatus for recovering a pure substance from an impure solution by crystallization 有权用于从通过结晶的不纯溶液中回收纯物质的方法和装置
公开(公告)号：EP1398064B1
公开(公告)日：2005-07-27
申请号：EP02078711.5
申请日：2002-09-10
IPC分类号： B01D9/02
CPC分类号： B01D9/0013 , B01D9/004 , B01D9/0059
摘要： A purification stage crystallizer (1c) receives a liquid comprising the substance, and discharges a slurry of liquid and crystals of the substance. A separator receives the slurry, and outputs a residue to a recovery stage crystallizer (2c) and pure crystals of the substance. A separator receives a slurry of crystals and liquid residue from the crystallizer (2c) and outputs crystal of the substance to crystallizer (1c). An independent claim is also included for a method for purification of a substance.
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9.发明公开Hydraulic annular washing column, and process for separating solids from a suspension 审中-公开液压洗涤塔和方法，用于从悬浮液中分离固体
公开(公告)号：EP1295628A1
公开(公告)日：2003-03-26
申请号：EP01203549.9
申请日：2001-09-19
IPC分类号： B01D9/00
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.摘要翻译： 本发明涉及到在装置，用于从悬浮液，其包括分离固体：具有中心轴线那里通过一个中空的圆柱形柱，具有一横截面的内部，垂直于所述轴线，做上述柱状体是沿所述轴线恒定，并没有 从第一端部到所述列一个中心管在所述列轴向设置，并从所述一端朝向所述另一端延伸的第二端部延伸，所述上具有恒定直径的外壁中央管，所述圆柱和所述中心管 上在它们之间限定环形设计区，从所述柱在柱的至少接近所述第二端的第一端轴向延伸; 在所述中心管的所述外壁的至少一个过滤器，形成环形设计之间的唯一直接通信所述区域和所述管并且在所述中空的圆柱形柱的外壁上的至少一个过滤器的内部; 装置，用于提供一个悬挂于所述柱的第一端上; 装置，用于在所述柱的第二端移除悬浮液; 所述内部限定一个浓度区装置与所述中心管的内部，用于除去通过所述过滤器在所述中心管。所述和装置，用于除去通过过滤器在所述中空圆柱状的外壁上传递液体的所述外壁通过液体连通; 装置作用在所述悬浮液的液体通过所述环形设计朝向所述过滤区推动所述液体。
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公开(公告)号：EP0424999B1
公开(公告)日：1993-12-15
申请号：EP90202524.6
申请日：1990-09-24
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