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GB1399473A - Contacting liquids and solids in countercurrent - Google Patents

Contacting liquids and solids in countercurrent

Info

Publication number
GB1399473A
GB1399473A GB2207872A GB2207872A GB1399473A GB 1399473 A GB1399473 A GB 1399473A GB 2207872 A GB2207872 A GB 2207872A GB 2207872 A GB2207872 A GB 2207872A GB 1399473 A GB1399473 A GB 1399473A
Authority
GB
United Kingdom
Prior art keywords
solids
stage
liquid
last
flow
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.)
Expired
Application number
GB2207872A
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.)
NAT INST METALLURG
Original Assignee
NAT INST METALLURG
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
Application filed by NAT INST METALLURG filed Critical NAT INST METALLURG
Publication of GB1399473A publication Critical patent/GB1399473A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0223—Moving bed of solid material
    • B01D11/0242—Moving bed of solid material in towers, e.g. comprising contacting elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1399473 Solid/liquid contact; ion-exchange NATIONAL INSTITUTE FOR METALLURGY 11 May 1972 [14 May 1971] 22078/ 72 Headings B1F and B1J A process similar to that disclosed in 1070251 modified to ensure the trays remain flooded with solids comprises contacting solids and liquids in general counter-current in a series of stages between which liquids and solids can flow in both directions, the solids being introduced into a first stage and flowing from the first stage to a last stage and out of the last stage, the liquid flowing generally from the last stage to the first stage and out of the first stage, and the rate of liquid flow being cyclically varied so that during a first part of each cycle the solids are allowed to settle in the liquid phase, in a second part are caused to pass with the liquid from one stage to the next in the direction towards the last stage, while in a third part of the cycle liquid is caused to flow from the last stage towards the first stage while fluidising the solids in its path, the arrangment being such that the volume of solids that is caused to pass out of the last stage is less than the volume of solids that can flow between any pair of stages during the second part of a cycle. Thus in the embodiment of Fig 1, domes 8 of the last tray 6 of an ion exchange column are larger than the domes of the proceeding trays so that the amount of solids that passes through chimneys 7 in the last tray is less than can pass through the chimneys 7 of the proceeding trays.
GB2207872A 1971-05-14 1972-05-11 Contacting liquids and solids in countercurrent Expired GB1399473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA713139A ZA713139B (en) 1971-05-14 1971-05-14 Improvements in or relating to solid/fluid contacting

Publications (1)

Publication Number Publication Date
GB1399473A true GB1399473A (en) 1975-07-02

Family

ID=25563400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2207872A Expired GB1399473A (en) 1971-05-14 1972-05-11 Contacting liquids and solids in countercurrent

Country Status (10)

Country Link
JP (1) JPS5713333B1 (en)
AU (1) AU472709B2 (en)
BE (1) BE783407A (en)
CA (1) CA978722A (en)
DE (1) DE2223627C3 (en)
FR (1) FR2137875B1 (en)
GB (1) GB1399473A (en)
IT (1) IT955497B (en)
NL (1) NL7206549A (en)
ZA (1) ZA713139B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337981A1 (en) * 1993-11-06 1995-05-11 Montz Gmbh Julius Mass transfer tray having a liquid distributor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660561A5 (en) * 1982-08-30 1987-05-15 Escher Wyss Gmbh RING CLEANING NOZZLE AND THEIR USE IN A FLUID BED DRYER.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337981A1 (en) * 1993-11-06 1995-05-11 Montz Gmbh Julius Mass transfer tray having a liquid distributor
DE4337981B4 (en) * 1993-11-06 2004-04-15 Julius Montz Gmbh Mass transfer tray with a liquid distributor

Also Published As

Publication number Publication date
NL7206549A (en) 1972-11-16
DE2223627B2 (en) 1979-05-10
DE2223627C3 (en) 1980-01-03
ZA713139B (en) 1972-09-27
AU4212072A (en) 1973-11-15
JPS5713333B1 (en) 1982-03-16
FR2137875B1 (en) 1976-07-23
AU472709B2 (en) 1976-06-03
DE2223627A1 (en) 1972-12-07
FR2137875A1 (en) 1972-12-29
IT955497B (en) 1973-09-29
CA978722A (en) 1975-12-02
BE783407A (en) 1972-09-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee