EP0971778A1 - Procede d'echange de matieres entre deux phases liquides - Google Patents

Procede d'echange de matieres entre deux phases liquides

Info

Publication number
EP0971778A1
EP0971778A1 EP98924084A EP98924084A EP0971778A1 EP 0971778 A1 EP0971778 A1 EP 0971778A1 EP 98924084 A EP98924084 A EP 98924084A EP 98924084 A EP98924084 A EP 98924084A EP 0971778 A1 EP0971778 A1 EP 0971778A1
Authority
EP
European Patent Office
Prior art keywords
phase
exchange medium
chambers
chamber
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98924084A
Other languages
German (de)
English (en)
Inventor
Artak Eranosovich Kostanian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from RU97105096/25A external-priority patent/RU97105096A/ru
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0971778A1 publication Critical patent/EP0971778A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/10—Ion-exchange processes in general; Apparatus therefor with moving ion-exchange material; with ion-exchange material in suspension or in fluidised-bed form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0488—Flow sheets

Definitions

  • the invention is based on a mass transfer process between two liquid phases via an exchange medium in one or in a series of separation stages connected in series.
  • a separation stage comprises two interconnected contact chambers. In the first chamber, a dispensing phase is brought into contact with the exchange medium and in the second chamber, the loaded exchange medium is contacted with an absorption phase. In this way, a substance is separated from the donor phase and transferred to the receiver phase.
  • Mass transfer processes of this type can be used in chemical, hydrometallurgical, microbiological, and other industries for the separation, concentration and purification of substances.
  • a separation stage comprises two contact chambers connected to each other. These chambers are filled with an exchange medium.
  • the dispersing dispenser or receiver phase which are not soluble in the continuous exchange medium, are passed through chambers as droplets of drops.
  • the exchange medium comes into contact in succession in the first chamber with the dispenser phase and in the second chamber with the receiver phase.
  • the substance to be separated is moved from the first to the second chamber and from the
  • the exchange medium is an extractant.
  • This known multi-stage mass transfer process can also be improved with regard to its application potential, for example expansion to processes between gas and liquid or solid and liquid, and the efficiency in the separation.
  • the object of the invention is to open up further possible applications by modifying the known mass transfer process. These include processes with exchange media in different physical states and a coupling of absorption, adsorption and desorption processes in order to increase the separation efficiency of the mass transfer between two liquid phases.
  • the dispensing phase is in the first chamber of a stage and the transducer phase is in the second chamber of a stage.
  • the mass exchange takes place with an exchange medium, which is first distributed into a chamber with the dispensing phase and then into a chamber with the receiver phase.
  • the exchange medium can circulate between the first and second chambers within the same stage.
  • the exchange medium can be replaced by several or all separation stages in the
  • Cycle are carried out, wherein it is fed from the second chamber in a Smfe the first chamber in the next stage.
  • the dispenser and receiver phases can be passed through a number of separation stages in cocurrent or countercurrent.
  • Fig. 1 shows a process diagram for the series connection of the separation stages with a circulation of the exchange medium within the stages and with a countercurrent flow of the liquid phases through all separation stages.
  • Fig. 2 shows a process diagram for the series connection of the separation stages with a circulation of the exchange medium within the stages and with one
  • Fig. 3 shows a process diagram for the series connection of the separation stages with a circulation of the exchange medium through all stages and with countercurrent flow of the liquid phases through the separation stages
  • Fig. 4 is a process diagram for the series connection of the separation stages with a circulation of the exchange medium through all separation stages and with direct current flow of the liquid phases through the stages.
  • the first and second chambers forming a separation stage are accommodated in separate housings.
  • the first and second chambers forming a separation stage are arranged one above the other in a housing, and the separation stages are accommodated in a housing.
  • the contact chambers of the separation stages are filled with the corresponding liquid phases.
  • the first chamber 1 is filled with the dispensing phase, the second chamber 2 with the pickup phase.
  • the exchange medium then begins to circulate between the chambers within the separation stages
  • the exchange medium can be liquid, gaseous or solid.
  • the dispenser phase is fed via line 3 into chamber 1 of the first separation stage and discharged via line 4 from the last separation stage.
  • the pickup phase is supplied via line 5 and discharged via line 6.
  • the dispensing phase is conducted from stage to stage via connecting lines 7 and the receiver phase is conducted from stage to stage via connecting lines 8.
  • the exchange medium is circulated via the connecting lines 9.
  • the substance to be separated is transferred from the dispenser phase into the exchange medium, and in the chamber 2, the substance from the exchange medium passes into the receiver phase.
  • the dispenser phase is enriched when flowing through the chambers 1
  • the pickup phase is enriched with the substance when flowing through the chambers 2.
  • the dispenser and receiver phases are conducted in cocurrent (Fig. 2, 4) or in countercurrent (Fig. 1, 3) to each other through the separation stages.
  • the direct current routing is technically simpler. However, it only achieves maximum effectiveness if the substance to be separated reacts very quickly with the pick-up phase or a component contained in it.
  • the dispenser and the receiver phase in the contact chambers form the continuous phase and fill most of the chambers. This makes the two phases in the mass transfer process according to the invention.
  • the longer residence time is advantageous because the mass transfer takes longer and is therefore more complete. This is particularly important if chemical reactions that do not take place very quickly are coupled with the mass transfer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

L'invention concerne un procédé d'échange de matières par l'intermédiaire d'un agent d'échange entre deux phases liquides dans deux chambres de contact reliées entre elles, procédé dans lequel l'agent d'échange est mis en contact avec la phase de libération liquide dans la première chambre et avec la phase d'absorption liquide dans la deuxième chambre et la substance à séparer est transférée de la phase de libération à la phase d'absorption par l'intermédiaire de l'agent d'échange. Le procédé se caractérise en ceci que l'agent d'échange est réparti par un dispositif de distribution entre la phase de libération et la phase d'absorption qui remplissent les chambres.
EP98924084A 1997-04-02 1998-03-27 Procede d'echange de matieres entre deux phases liquides Withdrawn EP0971778A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU97105096 1997-04-02
RU97105096/25A RU97105096A (ru) 1997-04-02 Способ ступенчатого массообмена между двумя жидкими фазами
PCT/EP1998/001811 WO1998043718A1 (fr) 1997-04-02 1998-03-27 Procede d'echange de matieres entre deux phases liquides

Publications (1)

Publication Number Publication Date
EP0971778A1 true EP0971778A1 (fr) 2000-01-19

Family

ID=20191435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98924084A Withdrawn EP0971778A1 (fr) 1997-04-02 1998-03-27 Procede d'echange de matieres entre deux phases liquides

Country Status (5)

Country Link
EP (1) EP0971778A1 (fr)
JP (1) JP2001517148A (fr)
CN (1) CN1251053A (fr)
CA (1) CA2285361A1 (fr)
WO (1) WO1998043718A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPP790698A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Separation of microorganisms
AUPP790898A0 (en) 1998-12-23 1999-01-28 Life Therapeutics Limited Renal dialysis
AUPP971399A0 (en) 1999-04-12 1999-05-06 Life Therapeutics Limited Separation of plasma components
US7077942B1 (en) 1999-12-23 2006-07-18 Gradipore Limited Removal of biological contaminants
AUPQ691400A0 (en) 2000-04-14 2000-05-11 Life Therapeutics Limited Separation of micromolecules
AUPQ697300A0 (en) 2000-04-18 2000-05-11 Life Therapeutics Limited Separation apparatus
DE60140537D1 (de) 2000-04-18 2009-12-31 Gradipore Ltd Trennung und behandlung von proben durch elektrophorese
US6923896B2 (en) 2000-09-22 2005-08-02 The Texas A&M University System Electrophoresis apparatus and method
CN102847339B (zh) * 2012-09-07 2014-11-05 福州大学 一种液相挥发性物质的气相萃取与富集方法及其系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573415B1 (fr) * 1984-11-16 1986-12-12 Pechiney Uranium Procede de recuperation sous forme de fluorure tetravalent de l'uranium extrait de solutions phosphatees
FR2680980A1 (fr) * 1991-09-09 1993-03-12 Commissariat Energie Atomique Procede de traitement d'une solution contenant de l'acide acetique en presence d'halogenes.
FR2707416B1 (fr) * 1993-07-08 1995-08-18 Cogema Procédé et installation de décontamination d'effluents nitriques radioactifs contenant du strontium et du sodium.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9843718A1 *

Also Published As

Publication number Publication date
JP2001517148A (ja) 2001-10-02
CN1251053A (zh) 2000-04-19
CA2285361A1 (fr) 1998-10-08
WO1998043718A1 (fr) 1998-10-08

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