公开(公告)号：US6159382A

公开(公告)日：2000-12-12

申请号：US167563

申请日：1998-10-07

申请人： Lawrence D. Conant ,  Arie Keus

发明人： Lawrence D. Conant ,  Arie Keus

IPC分类号： C01B17/90 ,  C01B17/92 ,  C07C2/54

CPC分类号： F28F19/008 ,  C01B17/90 ,  C01B17/92 ,  C07C2/54 ,  C02F2101/10 ,  F28F27/02 ,  Y02P20/145

摘要： A process for purifying a sulfuric acid solution such as by cooling a sulfuric acid solution to at or near its freezing point to form a slurry of a solid phase and a liquid phase. The slurry has an acid-rich region and an acid-poor region. The acid-rich region is separated from the acid-poor region on the basis of density.

摘要翻译： 一种纯化硫酸溶液的方法，例如通过将硫酸溶液冷却至其冰点或其附近，形成固相和液相的浆液。 该浆液具有酸富集区域和酸性差的区域。 基于密度将酸富集区域与酸性贫乏区域分离。

公开(公告)号：US5575160A

公开(公告)日：1996-11-19

申请号：US523824

申请日：1995-09-06

申请人： Arie Keus

发明人： Arie Keus

IPC分类号： B01D9/00 ,  B01D43/00 ,  C02F1/22 ,  F25C1/14 ,  F28F19/00 ,  B01D9/04

CPC分类号： F28F19/008 ,  B01D43/00 ,  B01D9/0013 ,  B01D9/0045 ,  C02F1/22 ,  F25C1/145 ,  C02F2103/04 ,  Y10S165/149

摘要： A freeze crystallization concentration system is disclosed for separating a liquid feed stream into a more purified liquid and a concentrate in which only a single pass through a freeze-crystallizer and ice separator is required. The crystallizer, which converts the initial feed stream into a slurry of ice and concentrate, includes a scraped surface heat exchanger that produces, pumps and removes an ice slurry and uses a secondary cooling system to ensure that the crystallizer will operate in any required position and is not sensitive to motion. The separator includes a rotating drum which separates the ice crystals from the surrounding concentrate by the use of centrifugal force and without the use of screens or filters. An auger, rotating at a different speed than the drum, may be located at the center of the drum for removing the ice crystals. A second drum, attached to the first drum, removes the concentrate with a stationary pivot tube under pressure created by the centrifugal force, without the concentrate being exposed to air. The ice crystals can then be conducted to the wash column to be separated from the remaining concentrate, grown and melted into pure water. The concentrate exiting the separator can be either removed from the system or a small amount can be diverted back to the crystallizer to be mixed with the feed stream from the wash column if a higher concentration is required.

公开(公告)号：US5537832A

公开(公告)日：1996-07-23

申请号：US538954

申请日：1995-11-02

申请人： Arie Keus

发明人： Arie Keus

IPC分类号： B01D9/00 ,  B01D43/00 ,  C02F1/22 ,  F25C1/14 ,  F28F19/00 ,  B01D9/04

CPC分类号： F28F19/008 ,  B01D43/00 ,  B01D9/0013 ,  B01D9/0045 ,  C02F1/22 ,  F25C1/145 ,  C02F2103/04 ,  Y10S165/149

摘要： A freeze crystallization concentration system is disclosed for separating a liquid feed stream into a more purified liquid and a concentrate in which only a single pass through a freeze-crystallizer and ice separator is required. The crystallizer, which converts the initial feed stream into a slurry of ice and concentrate, includes a scraped surface heat exchanger that produces, pumps and removes an ice slurry and uses a secondary cooling system to ensure that the crystallizer will operate in any required position and is not sensitive to motion. The separator includes a rotating drum which separates the ice crystals from the surrounding concentrate by the use of centrifugal force and without the use of screens or filters. An auger, rotating at a different speed than the drum, may be located at the center of the drum for removing the ice crystals. A second drum, attached to the first drum, removes the concentrate with a stationary pivot tube under pressure created by the centrifugal force, without the concentrate being exposed to air. The ice crystals can then be conducted to the wash column to be separated from the remaining concentrate, grown and melted into pure water. The concentrate exiting the separator can be either removed from the system or a small amount can be diverted back to the crystallizer to be mixed with the feed stream from the wash column if a higher concentration is required.

摘要翻译： 公开了一种用于将液体进料流分离成更纯化的液体和仅需要单次通过冷冻结晶器和冰分离器的浓缩物的冷冻结晶浓缩系统。 将初始进料流转化成冰和浓缩物的浆料的结晶器包括产生，泵送和除去冰浆的刮表面热交换器，并使用二次冷却系统来确保结晶器将在任何所需位置运行， 对运动不敏感。 分离器包括旋转鼓，其通过使用离心力将冰晶与周围的浓缩物分离，并且不使用筛网或过滤器。 以不同于滚筒的速度旋转的螺旋钻可以位于滚筒的中心以去除冰晶。 附着在第一滚筒上的第二滚筒在离心力产生的压力下用静止的枢轴管移除浓缩物，而不会使浓缩物暴露在空气中。 然后可以将冰晶体导入洗涤柱以与剩余的浓缩物分离，生长并熔化成纯水。 离开分离器的浓缩物可以从体系中除去，或者如果需要更高的浓度，少量可以转移回结晶器以与来自洗涤塔的进料流混合。

公开(公告)号：US5394706A

公开(公告)日：1995-03-07

申请号：US63735

申请日：1993-05-20

申请人： Arie Keus

发明人： Arie Keus

IPC分类号： B01D9/00 ,  B01D43/00 ,  C02F1/22 ,  F25C1/14 ,  F28F19/00 ,  B01D9/04

CPC分类号： F28F19/008 ,  B01D43/00 ,  B01D9/0013 ,  B01D9/0045 ,  C02F1/22 ,  F25C1/145 ,  C02F2103/04 ,  Y10S165/149

摘要： A freeze crystallization concentration system is disclosed for separating a liquid feed stream into a more purified liquid and a concentrate in which only a single pass through a freeze-crystallizer and ice separator is required. The crystallizer, which converts the initial feed stream into a slurry of ice and concentrate, includes a scraped surface heat exchanger that produces, pumps and removes an ice slurry and uses a secondary cooling system to ensure that the crystallizer will operate in any required position and is not sensitive to motion. The separator includes a rotating drum which separates the ice crystals from the surrounding concentrate by the use of centrifugal force and without the use of screens or filters. An auger, rotating at a different speed than the drum, may be located at the center of the drum for removing the ice crystals. A second drum, attached to the first drum, removes the concentrate with a stationary pivot tube under pressure created by the centrifugal force, without the concentrate being exposed to air. The ice crystals can then be conducted to the wash column to be separated from the remaining concentrate, grown and melted into pure water. The concentrate exiting the separator can be either removed from the system or a small amount can be diverted back to the crystallizer to be mixed with the feed stream from the wash column if a higher concentration is required.

摘要翻译： 公开了一种用于将液体进料流分离成更纯化的液体和仅需要单次通过冷冻结晶器和冰分离器的浓缩物的冷冻结晶浓缩系统。 将初始进料流转化成冰和浓缩物的浆料的结晶器包括产生，泵送和除去冰浆的刮表面热交换器，并使用二次冷却系统来确保结晶器将在任何所需位置运行， 对运动不敏感。 分离器包括旋转鼓，其通过使用离心力将冰晶与周围的浓缩物分离，并且不使用筛网或过滤器。 以不同于滚筒的速度旋转的螺旋钻可以位于滚筒的中心以去除冰晶。 附着在第一滚筒上的第二滚筒在离心力产生的压力下用静止的枢轴管移除浓缩物，而不会使浓缩物暴露在空气中。 然后可以将冰晶体导入洗涤柱以与剩余的浓缩物分离，生长并熔化成纯水。 离开分离器的浓缩物可以从体系中除去，或者如果需要更高的浓度，少量可以转移回结晶器以与来自洗涤塔的进料流混合。