公开(公告)号：EP0015157A1

公开(公告)日：1980-09-03

申请号：EP80300533.9

申请日：1980-02-25

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang ,  Cheng, Wu-Cheng

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang ,  Cheng, Wu-Cheng

IPC分类号： C02F1/22 ,  B01D9/04

CPC分类号： B01D9/04 ,  C02F1/22 ,  C02F11/20 ,  C02F2103/08 ,  Y02A20/128 ,  Y02A20/132

摘要： in the process of the present invention an aqueous solution is flash vaporized under a reduced pressure to form, simultaneously, a low pressure water vapour and ice crystals. The ice formed may, if desired, be purified and is then melted inside thermally conductive conduits under a high pressure of, for example, 600 atm. The low pressure water vapour is desublimed to form ice on the exterior of the conduits The latent heat of desublimation released may be utilized in supplying the heat needed in the ice-melting operation. The .desublimate is removed intermittently by an in-situ dissolution operation utilizing an aqueous solution such as the feed solution. A substantially equivalent amount of ice is formed inside the conduits by an exchange freezing operation. The ice so formed is also melted.
An apparatus is provided for carrying out such a process

摘要翻译： 在本发明中，以wässrige溶液闪蒸减压下汽化以形成，同时，将低压水蒸汽和冰晶，所形成的冰的过程中，如果需要清除，进行纯化，然后熔化下内部导热导管 的高压，例如，600个大气压。 低压水蒸气凝华，形成在导管的外表冰。 释放凝华的潜热可以在供给在融冰操作所需的热量被利用。 如进料溶液：在凝华通过原位溶解操作利用上wässrige溶液间歇地除去。 冰的基本上等同的量通过导管内形成为交换冷冻操作。 冰如此形成gibt熔化。...被提供用于执行的搜索处理的装置

公开(公告)号：EP0044366A1

公开(公告)日：1982-01-27

申请号：EP80302490.0

申请日：1980-07-23

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： B01D9/04

CPC分类号： B01D3/06 ,  B01D3/065 ,  B01D7/00 ,  B01D9/00 ,  B01D9/0018 ,  C01B3/50 ,  C01B7/0712 ,  C01B7/075 ,  C01B11/028 ,  C01B13/0248 ,  C01B15/013 ,  C01B33/046 ,  C01B33/10778 ,  C01F7/62 ,  C01G23/075 ,  C01G49/10 ,  C07C7/14 ,  C07C17/383 ,  C07C17/392 ,  C07C29/78 ,  C07C37/84 ,  C07C45/81 ,  C07C51/43 ,  C07C253/34 ,  C07C2601/14 ,  C07C47/04 ,  C07C57/04 ,  C07C53/08 ,  C07C53/16 ,  C07C57/145 ,  C07C63/16 ,  C07C31/12 ,  C07C39/04 ,  C07C39/06 ,  C07C39/14 ,  C07C39/30 ,  C07C35/12 ,  C07C255/08

摘要： A crystallization separation process for separating an at least partially liquid mixture containing two volatile components (A and B) the two components forming a binary system in which the vapor pressure ratio of A:B is 0.1 to 10 at the B-triple point and is less than the ratio of the heat of sublimation to the heat of melting of the B-component at the B-triple point, the constant pressure phase diagram having a B-enriched solid-vapor two phase region covering a substantial concentration range above the three phase state temperature and a B-enriched solid and liquid region below such temperature wherein a first vapor mixture and first condensed mass are formed by vaporizing the two components in a first zone at a temperature and pressure lower than the triple point temperature and pressure, the first condensed mass comprising a mother liquor and a solid phase which is B-enriched, the heat released in the formation of the solid being utilized to vaporize the volatile components.
Such process can be extended to a gas mixture containing two volatile and condensable components (A and B) into substantially pure B and a B-lean component, in which heat is removed from the gas to cause part of the B to desublime, the A remaining in the vapor stream, the vapor stream then having heat removed therefrom while the vapor is at a temperature and pressure below the B-triple point values thereby causing formation of a further condensed mass.

摘要翻译： 一种用于分离含有两种挥发性组分（A和B）的至少部分液体混合物的结晶分离方法，所述两种组分形成二元体系，其中A：B的蒸气压比在B三重点为0.1至10，并且为 小于B-三重点的B成分的升华热量与熔融热的比例，具有覆盖三分之一以上的实质浓度范围的富含B的固体蒸气两相区域的恒压相图 相状态温度和低于这种温度的富含B的固体和液体区域，其中通过在低于三重点温度和压力的温度和压力下将第一区域中的两种组分蒸发而形成第一蒸气混合物和第一冷凝物质， 包含母液和富含B的固相的第一浓缩物质，在形成固体中释放的热量用于蒸发挥发性组分。 这种方法可以扩展到含有两种挥发性和可冷凝组分（A和B）的气体混合物，成为基本上纯的B和贫B组分，其中热量从气体中除去以使B的一部分发生沉淀，A 保留在蒸汽流中，然后蒸汽流从其中除去热量，同时蒸汽处于低于B-三重点值的温度和压力下，从而形成另外的冷凝物质。

公开(公告)号：EP0183793A1

公开(公告)日：1986-06-11

申请号：EP85902869.0

申请日：1985-05-21

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： B01D9

CPC分类号： B01D9/04 ,  B01D9/0009 ,  B01D9/0022 ,  B01D9/004

摘要： A wet and dry distillative freezing process is provided which comprises (a) a first step of transforming a liquid feed mixture into a first solid-liquid mixture, denoted as K-1 mixture, by either a conventional freezing operation or a wet distillative freezing operation, (b) a second step of washing the K-1 mixture with a wash liquid to thereby form a second solid-liquid mixture, denoted as Ko mixture, and an impure liquid Lo, and (c) a third step of subjecting the Ko mixture to a dry distillative freezing operation to thereby form a mass of refined solid phase, denoted as S1, and a low pressure vapor V1. Various wash liquids may be used in the crystal washing step. It is important to note that the wash liquid used does not have to be a pure liquid but may contain some volatile impurities. This is so, because the volatile impurities in the wash liquid will be taken up in the Ko mixture and will be removed in the dry distillative freezing step. Convenient wash liquids to use are (a) a mass of the feed liquid, (b) a mass of the condensate liquid, and (c) a part of the product liquid. One may also use a solution containing the crystallizing component and a selected volatile component as a wash liquid.

公开(公告)号：EP0044366B1

公开(公告)日：1985-01-09

申请号：EP80302490.0

申请日：1980-07-23

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： B01D9/04

CPC分类号： B01D3/06 ,  B01D3/065 ,  B01D7/00 ,  B01D9/00 ,  B01D9/0018 ,  C01B3/50 ,  C01B7/0712 ,  C01B7/075 ,  C01B11/028 ,  C01B13/0248 ,  C01B15/013 ,  C01B33/046 ,  C01B33/10778 ,  C01F7/62 ,  C01G23/075 ,  C01G49/10 ,  C07C7/14 ,  C07C17/383 ,  C07C17/392 ,  C07C29/78 ,  C07C37/84 ,  C07C45/81 ,  C07C51/43 ,  C07C253/34 ,  C07C2601/14 ,  C07C47/04 ,  C07C57/04 ,  C07C53/08 ,  C07C53/16 ,  C07C57/145 ,  C07C63/16 ,  C07C31/12 ,  C07C39/04 ,  C07C39/06 ,  C07C39/14 ,  C07C39/30 ,  C07C35/12 ,  C07C255/08

公开(公告)号：EP0078164A1

公开(公告)日：1983-05-04

申请号：EP82305623.9

申请日：1982-10-22

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： C02F1/22 ,  B01D9/04

CPC分类号： C02F1/22 ,  B01D7/02 ,  B01D9/04 ,  C02F2103/08 ,  Y02A20/132

摘要： A process for transforming a first vapor containing a major component and which has a pressure lower than the triple point pressure of the major component into a second vapor which has a pressure higher than the said triple point pressure comprising the steps of cooling the low-pressure first vapor to convert it into a condensed mass which contains a mass of solid of the major component, melting the solid in the condensed mass to form a mass of melt liquid and vaporizing the melt liquid at a pressure higher than the said triple point pressure.

摘要翻译： 一种用于将第一蒸气含主要组分和过程具有供具有比所述三POIN压力包括冷却低压的步骤更高的压力的第二蒸汽比所述主成分的三相点压力的压力下 第一蒸汽将其转化成其中含有的固体主要组分的质量，熔化固体在冷凝物质以形成熔融液体的质量和在比所述三相点压力高的压力气化熔融液体的浓缩物质。

公开(公告)号：EP0400073A1

公开(公告)日：1990-12-05

申请号：EP89903329.0

申请日：1989-03-04

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang ,  CHENG, Wu-Cheh

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang ,  CHENG, Wu-Cheh

IPC分类号： B01D9

CPC分类号： B01D9/04 ,  B01D9/0022

摘要： Le procédé décrit utilise des équipements pour effectuer des étapes de transformation avec phases multiples solid-liquide-vapeur de congélation par le vide, de congélation par distillation à voie humide, de cristallisation par le vide et de congélation eutectique avec réfrigérant primaire. Tous ces processus nécessitent des opérations de vaporisation et de cristallisation simultanées. Le procédé de la présente invention consiste: (1) à répartir la solution sur une surface rotative (53) pour former des films liquides, (2) à soumettre les films liquides à des opérations de vaporisation et de cristallisation simultanées, (3) à retirer les cristaux des surfaces (53) et (4) à transporter les cristaux vers la prochaine zone de traitement. Les surfaces (53) peuvent être constituées par des vis rotatives avec pas de vis en prise entre eux ou par un groupe de disques placés sur des arbres rotatifs. Les vis sont partiellement immergées dans la solution et des éléments des vis sont mouillés lorsqu'ils sont en rotation dans le bassin.

公开(公告)号：EP0183793B1

公开(公告)日：1989-04-12

申请号：EP85902869.8

申请日：1985-05-21

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： B01D9/04

CPC分类号： B01D9/04 ,  B01D9/0009 ,  B01D9/0022 ,  B01D9/004

摘要： A wet and dry distillative freezing process is provided which comprises (a) a first step of transforming a liquid feed mixture into a first solid-liquid mixture, denoted as K-1 mixture, by either a conventional freezing operation or a wet distillative freezing operation, (b) a second step of washing the K-1 mixture with a wash liquid to thereby form a second solid-liquid mixture, denoted as Ko mixture, and an impure liquid Lo, and (c) a third step of subjecting the Ko mixture to a dry distillative freezing operation to thereby form a mass of refined solid phase, denoted as S1, and a low pressure vapor V1. Various wash liquids may be used in the crystal washing step. It is important to note that the wash liquid used does not have to be a pure liquid but may contain some volatile impurities. This is so, because the volatile impurities in the wash liquid will be taken up in the Ko mixture and will be removed in the dry distillative freezing step. Convenient wash liquids to use are (a) a mass of the feed liquid, (b) a mass of the condensate liquid, and (c) a part of the product liquid. One may also use a solution containing the crystallizing component and a selected volatile component as a wash liquid.

公开(公告)号：EP0078164B1

公开(公告)日：1988-01-13

申请号：EP82305623.9

申请日：1982-10-22

申请人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

发明人： Cheng, Chen-Yen ,  Cheng, Sing-Wang

IPC分类号： C02F1/22 ,  B01D9/04

CPC分类号： C02F1/22 ,  B01D7/02 ,  B01D9/04 ,  C02F2103/08 ,  Y02A20/132

摘要： A process for transforming a first vapor containing a major component and which has a pressure lower than the triple point pressure of the major component into a second vapor which has a pressure higher than the said triple poin pressure comprising the steps of cooling the low-pressure first vapor to convert it into a condensed mass which contains a mass of solid of the major component, melting the solid in the condensed mass to form a mass of melt liquid and vaporizing the melt liquid at a pressure higher than the said triple point pressure.

公开(公告)号：EP0168438A1

公开(公告)日：1986-01-22

申请号：EP85900562.0

申请日：1984-12-22

申请人： Cheng, Sing-Wang ,  Cheng, Chen-Yen

发明人： Cheng, Sing-Wang ,  Cheng, Chen-Yen

IPC分类号： B01D9

CPC分类号： B01D9/004

摘要： Procédé de lavage d'un mélange de liqueur mère et de cristaux pour produire une masse de cristaux purifiés dans une zone de purification contenant deux séries de sous-zones, appelées respectivement sous-zone de type A et sous-zone de type B, qui sont posées séquentiellement et alternativement, le procédé comportant i) une étape d'application d'un mécanisme d'accroissement du transfert des impuretés du liquide retenu au liquide libre dans chaque sous-zone de type A, ii) une étape d'application d'un mécanisme de réduction de la quantité d'impuretés provenant de l'espace libre intercristallin dans chaque sous-zone de type B et iii) une étape de transfert de la phase solide et du liquide libre dans des directions à contre-courant.