US3489526A - Liquid-liquid contactor - Google Patents

Liquid-liquid contactor Download PDF

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Publication number
US3489526A
US3489526A US545365A US3489526DA US3489526A US 3489526 A US3489526 A US 3489526A US 545365 A US545365 A US 545365A US 3489526D A US3489526D A US 3489526DA US 3489526 A US3489526 A US 3489526A
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United States
Prior art keywords
mixer
liquid
settler
vessel
compartment
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Expired - Lifetime
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US545365A
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English (en)
Inventor
Menahem El-Roy
Shragga Irmay
Ruth Blumberg
Rafael Blumenthal
Kiriat Tivon
Avraham Matitiahu Baniel
David Gonen
David Meyer
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.)
ISRAEL MINING IND INST FOR RES
ISRAEL MINING IND INST FOR RESEARCH AND DEV
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ISRAEL MINING IND INST FOR RES
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    • 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
    • B01D11/0446—Juxtaposition of mixers-settlers
    • B01D11/0457—Juxtaposition of mixers-settlers comprising rotating mechanisms, e.g. mixers, mixing pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements

Definitions

  • a mixer-settler unit comprising separate mixer and settler vessels with gravity ow from the former to the latter.
  • the mixer vessel comprises a lower and an upper compartment and a draught tube leading from the former to the latter.
  • the mixing and pumping functions are separated and there is provided at least one mixing impeller and at least one pumping impeller, the latter lifting the liquid from the lower compartment of the mixer vessel from where it flows by gravity to the settler vessel.
  • the settler vessel comprises a diffuser chamber receiving the liquid arriving from the mixer, and a settler chamber.
  • the present invention concerns liquid-liquid contactors of the mixer-settler type.
  • mixer-settler units consisting each of one mixer vessel and one settler vessel, are combined in series in a counter-current multistage manner to form a mixer-settler battery through which the liquids to be contacted proceed in counter-current flow.
  • the various mixer-settlers may be classified into three types according to the manner by which the flow of the liquid through the apparatus is brought about.
  • the driving force for the liquid flow is the head between the inlet and outlet.
  • the hydraulic communications between the vessels must be sufficiently large in order to minimize the flow resistance.
  • the danger of back-mixing is equally increased.
  • two incompatible requirements of increasing on the one hand the cross-sectional area of the apertures between the vessels in order to reduce the flow resistance, and of decreasing on the other hand the same diameter in order to reduce the back-mixing.
  • a third type of mixer-settlers generally referred to as the pump-mixing type
  • the pumping is combined with the mixing in the mixer.
  • an airlift by introducing air at the bottom of each mixer through a nozzle over which is placed a vertical lift tube.
  • the disadvantages inherent in this method are the same as those mentioned above in connection with the use of an ⁇ airlift for interstage pumping.
  • the introduction of air during the mixing may cause the formation of fine emulsions which are difficult to separate.
  • This mixersettler is characterized by a hydraulic separation of the mixer and settler vessels from each other so that the transfer of the mixed liquid phase from each mixer to the associated settler vessel is by gravity ow. This is achieved by providing ⁇ on the top of each mixer vessel a tray communicating with the actual mixer chamber by a draught tube and by locating the mixer-pumping impeller inside this tube so that the mixed phase is drawn upon onto the tray. From that tray the mixed phase is discharged by free gravity flow into the associated settler vessel from where the phases are withdrawn separately and fed to their respective mixers, again by gravity flow. While in this mixer-settler the desired hydraulic independence of mixer and settler is achieved there still remains the fundamental deficiency that the same impeller is used both for mixing and for pumping.
  • the invention consists in a liquid-liquid contactor of the mixer-settler type including a mixer vessel comprising a lower compartment and an upper compartment separated from each other by a horizontal partition merging in its centre into a depending draught tube, at least one mixer impeller in the lower compartment in the region below said draught tube, at least one pumping impeller within said draught tube adapted to lift a mixed liquid phase from the lower into the upper compartment, means for the free-flow discharge of the mixed liquid phase from the upper compartment and means for the separate introduction of two liquids into the lower compartment; a settler vessel comprising a diffuser chamber adapted to receive said mixed liquid phase arriving by free flow from the mixer vessel, a settler chamber surrounding the diffuser chamber, peripheral collector means in said settler chamber for the overflow of the light phase and means near the bottom of said settler chamber for the free-flow discharge of the heavy phase; and means leading from the upper compartment of the mixer vessel to the settler vessel adapted for the freeflow discharge of a mixed liquid phase from the former to the latter.
  • the mixing and pumping impellers may be driven by the same or separate driving means.
  • the same or separate driving means may be driven by the same or separate driving means.
  • v mixing impellers may be located on the bottom of the lower compartment and be driven mechanicaly or magnetically from below, while the shaft of the pumping impeller(s) may either depend into the draught tube from above or penetrate into it from below the mixer.
  • the shaft of the pumping impeller(s) may either depend into the draught tube from above or penetrate into it from below the mixer.
  • Various modifications are possible in particular as regards the location and the driving of the mixing impeller(s).
  • the mixer and pumping impellers are each keyed on a shaft depending from overhead driving means.
  • the shaft may either be common to both the mixer and pumping impellers or, alternatively, separate shafts may be provided.
  • the shaft for the pumping impeller(s) may be hollow and loosely envelope the shaft for the mixer irnpeller, possibly with interposition of suitable bearings. If desired the two shafts may be coaxial.
  • the upper chamber in a mixer of a liquid-liquid contactor according to the invention will as a rule be much 'shallower than the lower one and may be of a tray-like design.
  • the upper chamber has the additional beneficiary effect of enabling a preliminary coalescence which may contribute towards simplification of design and reductio-i in size of the associated settler vessel.
  • the diffuser of the settler vessel is constituted by liquid-permeable partitions which may be perforated, porous, slotted or shutter-like and which divide the settler vessel into an inner diffuser chamber and an outer surrounding settler chamber. These partitions function as coalescence inducers.
  • the use of such means for the induction of the coalescence is known from conventional settler vessels but in accordance with the invention
  • Athe diffuser may as a rule be of simpler design than in conventional mixer-settlers because of the preliminary coalescence taking place in the upper compartment of the mixer. Any increase of the flow resistance due to the diffuser is of no consequence because of the hydraulic independence of the mixer and settler vessels.
  • the principle of free-flow of the mixed liquid phase from the mixer vessel to the settler vessel enables delivery of the mixed liquid phase at any desired point across the latter.
  • Such an arrangement in combination with a peripheral peripheral overflow channel for the light phase which occupies the entire settler circumference and possible also a peripheral withdrawal of the heavy phase gives equal flow distribution throughout the settler and eliminates the turbulence due to directional flow.
  • Peripheral overflow also reduces to a minimum the fluid velocity at the overow point.
  • the low fluid velocity and elimination of turbulence permit operation with a minimum depth of clear liquid; the secondary break i.e.
  • coalescence of finely dispersed droplets can take place unhindered by turbulence or high localized uid velocities. Such a regime ermits operation with a minimum depth of clear liquor i.e. the settler capacity is increased.
  • a by-pass connecting the lower compartment of a mixer vessel with the settler vessel below the liquid level in either vessel under normal operational conditions, which by-pass is fitted with pressure-sensitive control means adapted to close and remain closed when the hydrostatic pressure in the mixer vessel corresponds to opeartional conditions, and to open when the hydrostatic pressure in that vessel exceeds the value corresponding to normal operational conditions.
  • the breakdown of the pumping impeller is not accompanied by a breakdown of the mixer impeller the effect of the by-pass is that the particular contactor concerned is temporarily converted into a conventional gravtiy-flow unit with direct hydraulic communication 'between the mixer and settler vessels.
  • the breakdown of the pumping impeller is accompanied by a breakdown of the mixer impeller the effect of the by-pass is a temporary complete cut-out of the particular contactor concerned. In either case the remainding contactors of the battery will continue to function normally, the consequence being a temporary reduction of the total extraction efficiency of the battery which in many industrial operations is preferable to a total interruption of operation.
  • the invention further provides for use in a liquid-liquid contactor as hereinbefore defined, a mixer vessel which comprises a lower compartment and an upper compartment separated from each other by a horizontal partition merging in its centre into a depending draught tube, at least one mixer impeller in the lower compartment in the region below said draught tube, at least one pumping impeller within said draught tube adapted to lift a mixed liquid phase from the lower into the upper compartment, means for the free-fiow discharge of the mixed liquid phase from the upper compartment and means for the separate introduction of two liquids into the lower cornpartments.
  • a mixer vessel which comprises a lower compartment and an upper compartment separated from each other by a horizontal partition merging in its centre into a depending draught tube, at least one mixer impeller in the lower compartment in the region below said draught tube, at least one pumping impeller within said draught tube adapted to lift a mixed liquid phase from the lower into the upper compartment, means for the free-fiow discharge of the mixed liquid phase from the upper
  • the invention also provides for use in a liquid-liquid contactor as hereinbefore defined a settler vessel which comprises a ditfuser chamber adapted to receive said mixed liquid phase arriving by free flow from the mixer vessel, a settler chamber surrounding the dilfuser chamber, peripheral collector means in said settler chamber for the overflow of the light phase and means near the bottom of said settler chamber for the free-ow discharge of the heavy phase.
  • the invention also provides liquid-liquid contactor batteries wherein a number of liquid-liquid contactors as hereinbefore dened are combined in a multistage countercurrent manner with free-flow interstage liquid transfer.
  • FIG. 1 is a diagrammatic section of a mixer for a liquid-liquid contactor according to the invention
  • FIG. 2 is a diagrammatic section of one embodiment of a liquid-liquid contactor according to the invention.
  • FIG. 3 is a plan view of the contactor according to FIG. 2 with the cover of the settler removed;
  • FIG. 4 is a plan view of another embodiment of a liquid-liquid contactor according to the invention.
  • FIG. 5 is a plan view of the contactor according to FIG. 4.
  • the mixer illustrated in FIG. 1 comprises a lower, mixing compartment 1 and an upper, substantially at compartment 2 separated from each other Iby a horizontal partition 3 which in its centre merges into a depending draught tube 4.
  • the lower compartment 1 comprises ports 5 and ⁇ 6 for the introduction of the two liquids to be contacted in the mixer.
  • the level of the liquid body inside compartment 1 under normal operational condi- 6 tions is indicated by the horizontal hyphenated line and as is seen in FIG. 1 ports 5 and 6 are above that level.
  • the upper compartment 2 comprises a port 7 for the free-110W discharge of liquid therefrom.
  • a mixer impeller 11 On the lower end of shaft 8 outside of tube 4 is keyed a mixer impeller 11. Also keyed on the same shaft and located within tube 4 is a pumping impeller 12 situated between straightening vanes 9 and 10 forming an integral part of the pump.
  • each of the impellers 11 and 12 is such as to meet its requirements.
  • the mixer impeller 11 is designed for the required mixing intensity.
  • impeller 11 may be exchangeable or adjustable in order to meet varying requirements.
  • the pumping impeller 12 is designed to meet the desired flow requirements which may 'be selected in complete independence of the mixing requirements. Also in this case the impeller may be adjustable or exchangeable. It is thus possible to combine a high mixing intensity with a low rate of tiow or vice versa.
  • the mixer impeller 11 and the pumping impeller 12 are keyed on a common shaft. If desired, this design may be modified by having the impellers 11 and 12 keyed on separate shafts, the one for the pumping impeller 12 being hollow and loosely enveloping the one of the mixing impeller 11, if desired with the interposition of suitable bearings. In this manner the two impellers may be revolved at different speeds which is a further contribution towards the versatility of the mixer according to the invention.
  • a further modification consists in using two or more pumping impellers located one above the other Within the draught tube 4.
  • the liquid-liquid contactor according to the invention illustrated in FIG. 2 comprises a mixer 15 of the kind illustrated in FIG. 1 and a settler 16.
  • the upper compartment 18 of the mixer is connected by a chute 19 to a collector tray 20 of the settler, which tray comprises a discharge opening 21 located above a diffuser 22.
  • the latter is a chamber of upright prismatic shape separated from the surrounding main portion of the settler by slotted partitions.
  • the chamber may also be circular.
  • the lower portion of mixer compartment 17 communicates with the lower portion of settler 16 by means of a horizontal by-pass pipe 23 tted at the end opening into the settler with a pressure sensitive shutting device 24 adapted to close and remain closed when the hydrostatic pressure in compartment 17 corresponds to operational conditions. If for some reason the liquid level inside compartment 17 rises so that the hydrostatic pressure exerted on the device 24 is increased, the latter will open and liquid will flow from compartment 17 into settler 16.
  • Settler 16 further comprises an upper peripheral duct 25 for the collection and free-flow discharge of the upper, lighter phase. Near its -bottom the settler 16 comprises a luted port 26 for the discharge of the heavy phase. From above settler 16 is covered by a cover 27 inserted into a liquid seal 28. For operation a number of units according to FIGS. 2 and 3 are combined into a multistage countercurrent battery.
  • each mixer During operation the two liquids to be contacted are fed into each mixer at a properly selected rate.
  • the mixer phase is pumped from each compartment 17 into the upper compartment 18 where a preliminary coalescence occurs and from where the liquid flows freely through chute 19 onto the collector plate 20 from where it is discharged by free fall through opening 21 into the diffuser 22. From the latter the liquid diffuses through the partitions into the surrounding main portion of the settler, by which diffusion further coalescence of the phases is induced.
  • phase separation occurs and the upper phase overflows into duct 2S from where it is discharged while the lower phase is discharged from port 26.
  • Each of the two phases is conducted by free flow into another coordinated mixer in accordance with the counter-flow scheme.
  • FIGS. 4 and 5 The embodiment of a liquid-liquid contacter illustrated in FIGS. 4 and 5 is basically similar to that according to FIGS. 2 and 3 and differs therefrom merely by the fact that the mixer vessel is located within the settler.
  • the mixer vessel 30 is identical to the one according to FIG. 1, compris-ing a mixing compartment 31 and an upper compartment 32, which latter comprises discharge openings 33.
  • Vessel 30 is located within diffuser 34 of settler vessel 35.
  • Settler vessel 35 comprises a peripheral duct 36 for the collection and free-flow discharge of the upper, lighter phase, and near its bottom a luted port 37 for the discharge of the heavy phase.
  • Vessel 30 comprises a spout 40 leading into diffuser 34 and fitted with a pressure sensitive shutter 41.
  • the Ifunction of spout 40 and shutter 41 is completely analogous to by-pass pipe 23 Iand shutter 24 of the embodiment of FIGS. 2 ⁇ and 3.
  • a liquid-liquid contactor of the mixer-settler type including a mixer vessel comprising a lower compartment and an upper compartment separated from each other by 4a horizontal partition merging in its center into a depending draught tube, means for separately introducing at least two liquids into the lower compartment, one of la heavier phase than that of the other liquid, ⁇ at least one mixer impeller in the lower compartment in the region below said draught tube, at least one pumping impeller within said draught tube adapted to lift the mixed liquid phase from the lower into the upper compartment, and means for the substantially horizontal free-flowing lengthy discharge of the mixed phase from the upper compartment; a settler Ivessel comprising a diffuser chamber adapted to receive said mixed liquid phase arriving by said substantially horizontal lengthy free-flow from the mixer vessel, a settler chamber surrounding the diffuser chamber, a substantially vertical liquid-permeable partition between said diffuser chamber and said settler chamber to permit radially outward flow of the liquid into the settler chamber, peripheral collector means in said settler chamber for the overflow of the light phase fan
  • a contacter according to claim y1 comprising a by-pass connecting the lower mixer ⁇ compartment with the settler below the levels which the liquid in both vessels assume under flow conditions in both vessels corresponding to the design values, which by-pass is fitted with pressure-sensitive How control means adapted to close and remain closed when the hydrostatic pressure in the mixer compartment corresponds to normal operational conditions, -and to open when the hydrostatic pressure in the mixer compartment exceeds the value corresponding to normal operational conditions.
  • a mixer vessel comprising a lower compartment and an upper compartment separated ⁇ from each other by a horizontal partition merging in its center into a depending draught tube, means for separately introducing lat least two liquids into the lower compartment, one of a heavier phase than that of the other liquid, lat least one mixer impeller in the lower compartment in the region below said draught tube, at least one pumping impeller within said draught tube yadapted to lift mixed liquid phase from the lower into the upper compartment and means for the substantially horizontal free-flowing lengthy discharge of the mixed phase from the upper compartment.
  • a mixer vessel according to claim 8 wherein the 'pumping Iand mixing impellers are keyed on a common shaft.
  • a mixer vessel according to claim 8 wherein the pumping and mixing impellers Iare keyed on separate shafts.
  • Ia settler vessel comprising a diffuser chamber adapted to receive said mixed liquid phase arriving by said substantially horizont-al lengthly free-flow from the mixer vessel, a settler chamber surrounding the diffuser chamber, a substantially Vertical liquid-permeable partition between said diffuser chamber and said settler chamber to permit radially youtward flow of the liquid into said settler chamber, peripheral collector means in said settler chamber for the overflow of the light phase and means near the bottom of said settler chamber for the free-flow discharge of the heavy phase.
  • a liquid-liquid contacter apparatus comprising a battery of liquid-liquid contactors according to claim 1 in la multistage counter-current manner with free-flow interstage liquid transfer.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
US545365A 1965-05-14 1966-04-26 Liquid-liquid contactor Expired - Lifetime US3489526A (en)

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IL23539A IL23539A (en) 1965-05-14 1965-05-14 Liquid-liquid contactor

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US (1) US3489526A (fr)
DE (1) DE1557093C3 (fr)
GB (1) GB1117959A (fr)
IL (1) IL23539A (fr)
NL (1) NL6606628A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663178A (en) * 1969-06-03 1972-05-16 Atomic Energy Commission Mixer-settler apparatus
US3844723A (en) * 1969-04-14 1974-10-29 Shinetsu Chemical Co Multi-stage counter-current liquid-liquid contact apparatus
US3989467A (en) * 1974-05-24 1976-11-02 Holmes & Narver, Inc. Apparatus for contacting immiscible fluids
DE2710241A1 (de) * 1976-03-11 1977-09-22 Krebs & Co Ag Verfahren zum vermengen und trennen von zwei nicht mischbaren fluessigkeiten
US4277445A (en) * 1977-06-07 1981-07-07 Metallurgie Hoboken-Overpelt Apparatus for liquid-liquid extraction
US5104524A (en) * 1987-06-01 1992-04-14 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Gmbh Apparatus for washing a solvent in the reprocessing of irradiated nuclear fuels
US5254244A (en) * 1991-09-05 1993-10-19 Cogema Compagnie Generale Des Matieres Nucleaires Modular mixer-settler having separate stages manipulatable by telemanipulator
TR26467A (tr) * 1990-04-04 1995-03-15 Outokumpu Oy Iki sivi fazin karistirilmasi ve ayrilmasi yöntemi ve bu yöntemi gerceklestirmek icin bir cihaz.
WO1997026064A1 (fr) * 1996-01-17 1997-07-24 Tauw Milieu B.V. Procede de traitement d'un echantillon
US20040131535A1 (en) * 2001-02-26 2004-07-08 Baruch Grinbaum Process and apparatus for the production of calcium bromide by liquid-liquid extraction
US20150299821A1 (en) * 2012-11-25 2015-10-22 Turbulent Technologies Ltd. Mixing method and device for solvent extraction, especially in hydrometallurgical processes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507665A (en) * 1974-05-02 1978-04-19 Davy Powergas Ltd Solvent extraction
NL8701249A (nl) * 1987-05-26 1988-12-16 Hva Water Contractors B V Inrichting voorzien van een vloeistof opnemend reservoir en een in het reservoir opgestelde, om zijn hartlijn in draaiing te brengen rotor.

Citations (11)

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US2164189A (en) * 1937-07-17 1939-06-27 Shell Dev Fatty matter refining process
US2201550A (en) * 1936-01-16 1940-05-21 Shell Dev Process for the solvent extraction of liquid mixtures
US2405158A (en) * 1945-01-16 1946-08-06 American Cyanamid Co Multiple contact countercurrent extractor
US2408721A (en) * 1944-07-01 1946-10-08 Seagram & Sons Inc Pneumatically-operated liquid-recirculating device
US2594675A (en) * 1945-11-19 1952-04-29 Bofors Ab Liquid reactor
US2701753A (en) * 1949-10-31 1955-02-08 Metallgesellschaft Ag Extraction of constituents of liquids by means of solvents
US2710250A (en) * 1950-02-08 1955-06-07 Colgate Palmolive Co Apparatus for the continuous liquidliquid solvent extraction of inorganic salt impurities from organic salt solutions
FR1119155A (fr) * 1951-02-08 1956-06-15 Procédé et installation pour la transmission de la puissance produite par des moteurs à combustion aux roues d'un véhicule ou analogue
US2768987A (en) * 1954-12-31 1956-10-30 Standard Oil Co Method and apparatus for hydrocarbon alkylation
FR1139449A (fr) * 1954-12-03 1957-07-01 Benckiser Gmbh Joh A Appareil pour l'introduction dans des canalisations de liquide de matières solides dissoutes
US3162510A (en) * 1959-12-03 1964-12-22 Meissner Fa Josef Mixing and separating apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2201550A (en) * 1936-01-16 1940-05-21 Shell Dev Process for the solvent extraction of liquid mixtures
US2164189A (en) * 1937-07-17 1939-06-27 Shell Dev Fatty matter refining process
US2408721A (en) * 1944-07-01 1946-10-08 Seagram & Sons Inc Pneumatically-operated liquid-recirculating device
US2405158A (en) * 1945-01-16 1946-08-06 American Cyanamid Co Multiple contact countercurrent extractor
US2594675A (en) * 1945-11-19 1952-04-29 Bofors Ab Liquid reactor
US2701753A (en) * 1949-10-31 1955-02-08 Metallgesellschaft Ag Extraction of constituents of liquids by means of solvents
US2710250A (en) * 1950-02-08 1955-06-07 Colgate Palmolive Co Apparatus for the continuous liquidliquid solvent extraction of inorganic salt impurities from organic salt solutions
FR1119155A (fr) * 1951-02-08 1956-06-15 Procédé et installation pour la transmission de la puissance produite par des moteurs à combustion aux roues d'un véhicule ou analogue
FR1139449A (fr) * 1954-12-03 1957-07-01 Benckiser Gmbh Joh A Appareil pour l'introduction dans des canalisations de liquide de matières solides dissoutes
US2768987A (en) * 1954-12-31 1956-10-30 Standard Oil Co Method and apparatus for hydrocarbon alkylation
US3162510A (en) * 1959-12-03 1964-12-22 Meissner Fa Josef Mixing and separating apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844723A (en) * 1969-04-14 1974-10-29 Shinetsu Chemical Co Multi-stage counter-current liquid-liquid contact apparatus
US3663178A (en) * 1969-06-03 1972-05-16 Atomic Energy Commission Mixer-settler apparatus
US3989467A (en) * 1974-05-24 1976-11-02 Holmes & Narver, Inc. Apparatus for contacting immiscible fluids
DE2710241A1 (de) * 1976-03-11 1977-09-22 Krebs & Co Ag Verfahren zum vermengen und trennen von zwei nicht mischbaren fluessigkeiten
US4277445A (en) * 1977-06-07 1981-07-07 Metallurgie Hoboken-Overpelt Apparatus for liquid-liquid extraction
US4419338A (en) * 1977-06-07 1983-12-06 Metallurgie Hoboken-Overpelt Liquid-liquid extraction
US5104524A (en) * 1987-06-01 1992-04-14 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Gmbh Apparatus for washing a solvent in the reprocessing of irradiated nuclear fuels
TR26467A (tr) * 1990-04-04 1995-03-15 Outokumpu Oy Iki sivi fazin karistirilmasi ve ayrilmasi yöntemi ve bu yöntemi gerceklestirmek icin bir cihaz.
US5254244A (en) * 1991-09-05 1993-10-19 Cogema Compagnie Generale Des Matieres Nucleaires Modular mixer-settler having separate stages manipulatable by telemanipulator
WO1997026064A1 (fr) * 1996-01-17 1997-07-24 Tauw Milieu B.V. Procede de traitement d'un echantillon
US6114680A (en) * 1996-01-17 2000-09-05 Perkin Elmer Llc Method for processing a sample
US20040131535A1 (en) * 2001-02-26 2004-07-08 Baruch Grinbaum Process and apparatus for the production of calcium bromide by liquid-liquid extraction
US7452520B2 (en) 2001-02-26 2008-11-18 Bromine Compounds Limited Process for the production of calcium bromide by liquid-liquid extraction
US20150299821A1 (en) * 2012-11-25 2015-10-22 Turbulent Technologies Ltd. Mixing method and device for solvent extraction, especially in hydrometallurgical processes
US10190188B2 (en) * 2012-11-25 2019-01-29 Turbulent Technologies Ltd. Mixing method and device for solvent extraction, especially in hydrometallurgical processes

Also Published As

Publication number Publication date
GB1117959A (en) 1968-06-26
DE1557093A1 (de) 1970-03-12
NL6606628A (fr) 1966-11-15
DE1557093B2 (de) 1974-05-30
DE1557093C3 (de) 1975-01-16
IL23539A (en) 1968-12-26

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