FR2233093A1 - Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system - Google Patents

Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system

Info

Publication number
FR2233093A1
FR2233093A1 FR7321970A FR7321970A FR2233093A1 FR 2233093 A1 FR2233093 A1 FR 2233093A1 FR 7321970 A FR7321970 A FR 7321970A FR 7321970 A FR7321970 A FR 7321970A FR 2233093 A1 FR2233093 A1 FR 2233093A1
Authority
FR
France
Prior art keywords
phase boundary
liquid
solutions
decanter
controller
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.)
Granted
Application number
FR7321970A
Other languages
French (fr)
Other versions
FR2233093B1 (en
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7321970A priority Critical patent/FR2233093A1/en
Publication of FR2233093A1 publication Critical patent/FR2233093A1/en
Application granted granted Critical
Publication of FR2233093B1 publication Critical patent/FR2233093B1/fr
Granted 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • 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
    • B01D11/0484—Controlling means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Organic Chemistry (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

In an appts. for controlling the phase boundary between solutions for extraction plants of the type comprising a regulator with an input sensitive to the potential of a pick-up with variation of resistance inserted in a measuring bridge and a control output with several operating zones, the further features comprising(a) a pick-up with a series of probes of different lengths dipping into the solutions, (b) means for connecting the probes to the intermediate resistance of a potential divider of the measuring bridge, (c) means for withdrawing solution operated by the control output. The appts. provides a level control system for the phase boundary between two solutions, at relatively low cost, good sensitivity and high reliability.
FR7321970A 1973-06-15 1973-06-15 Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system Granted FR2233093A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7321970A FR2233093A1 (en) 1973-06-15 1973-06-15 Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7321970A FR2233093A1 (en) 1973-06-15 1973-06-15 Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system

Publications (2)

Publication Number Publication Date
FR2233093A1 true FR2233093A1 (en) 1975-01-10
FR2233093B1 FR2233093B1 (en) 1976-06-11

Family

ID=9121067

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321970A Granted FR2233093A1 (en) 1973-06-15 1973-06-15 Controller for phase boundary level - e.g. in a decanter of a liquid-liquid extraction system

Country Status (1)

Country Link
FR (1) FR2233093A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104888493A (en) * 2015-06-05 2015-09-09 海正药业(杭州)有限公司 Device for realizing liquid-liquid extraction separation self-control through electric conduction and method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797284A (en) * 1953-07-27 1957-06-25 Phillips Petroleum Co Liquid level measurement and control
GB985534A (en) * 1962-01-09 1965-03-10 Inertia Switch Ltd Conductive liquid level sensing devices
US3184970A (en) * 1962-04-13 1965-05-25 Inland Steel Co Molten metal level indicator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797284A (en) * 1953-07-27 1957-06-25 Phillips Petroleum Co Liquid level measurement and control
GB985534A (en) * 1962-01-09 1965-03-10 Inertia Switch Ltd Conductive liquid level sensing devices
US3184970A (en) * 1962-04-13 1965-05-25 Inland Steel Co Molten metal level indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104888493A (en) * 2015-06-05 2015-09-09 海正药业(杭州)有限公司 Device for realizing liquid-liquid extraction separation self-control through electric conduction and method thereof

Also Published As

Publication number Publication date
FR2233093B1 (en) 1976-06-11

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