GB1453645A - Apparatus and method for purifying contaminated liquids by freeze crystallisation - Google Patents

Apparatus and method for purifying contaminated liquids by freeze crystallisation

Info

Publication number
GB1453645A
GB1453645A GB867274A GB867274A GB1453645A GB 1453645 A GB1453645 A GB 1453645A GB 867274 A GB867274 A GB 867274A GB 867274 A GB867274 A GB 867274A GB 1453645 A GB1453645 A GB 1453645A
Authority
GB
United Kingdom
Prior art keywords
concentrate
stage
plug
freeze crystallisation
solvent
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
GB867274A
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.)
Avco Corp
Original Assignee
Avco Corp
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 Avco Corp filed Critical Avco Corp
Publication of GB1453645A publication Critical patent/GB1453645A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/22—Treatment of water, waste water, or sewage by freezing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/02—Crystallisation from solutions
    • B01D9/04—Crystallisation from solutions concentrating solutions by removing frozen solvent therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1453645 Freeze crystallisation AVCO CORP 26 Feb 1974 [27 March 1973] 8672/74 Heading B1G [Also in Division C1] A method for the purification of a contaminated solvent by means of a two-stage freezercrystallizer process, comprises the steps of (a) subjecting as feed liquor a contaminated solvent to a freeze crystallisation treatment to give a pure solvent and a first concentrate; (b) feeding the first concentrate to the second stage wherein a porous plug of substantially pure solvent crystals containing a second concentrate within the pores thereof; (c) compacting the plug by applying pressure thereto; (d) continually harvesting an upper portion of said compacted plug and melting it to form a low concentration solution which is returned to the first stage for reprocessing. Apparatus for carrying out the process is described generally. The purification of brine is specified.
GB867274A 1973-03-27 1974-02-26 Apparatus and method for purifying contaminated liquids by freeze crystallisation Expired GB1453645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34544073A 1973-03-27 1973-03-27

Publications (1)

Publication Number Publication Date
GB1453645A true GB1453645A (en) 1976-10-27

Family

ID=23355067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB867274A Expired GB1453645A (en) 1973-03-27 1974-02-26 Apparatus and method for purifying contaminated liquids by freeze crystallisation

Country Status (3)

Country Link
JP (1) JPS49127465A (en)
GB (1) GB1453645A (en)
IT (1) IT1005700B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242426A1 (en) * 1986-04-23 1987-10-28 GebràœDer Sulzer Aktiengesellschaft Method and device for making an ice crystal suspension by triple point freeze evaporation
EP1398064A1 (en) * 2002-09-10 2004-03-17 Niro Process Technology B.V. Method and apparatus for recovering a pure substance from an impure solution by crystallization
US10195540B2 (en) 2014-03-28 2019-02-05 Sulzer Chemtech Ag Modular sub-unit for a suspension crystallization system
WO2022099370A1 (en) * 2020-11-11 2022-05-19 Bruce Smith System and method of treating brines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242426A1 (en) * 1986-04-23 1987-10-28 GebràœDer Sulzer Aktiengesellschaft Method and device for making an ice crystal suspension by triple point freeze evaporation
EP1398064A1 (en) * 2002-09-10 2004-03-17 Niro Process Technology B.V. Method and apparatus for recovering a pure substance from an impure solution by crystallization
US7179435B2 (en) 2002-09-10 2007-02-20 Niro Process Technology B.V. Method and apparatus for recovering a pure substance from an impure solution by crystallization
US10195540B2 (en) 2014-03-28 2019-02-05 Sulzer Chemtech Ag Modular sub-unit for a suspension crystallization system
WO2022099370A1 (en) * 2020-11-11 2022-05-19 Bruce Smith System and method of treating brines

Also Published As

Publication number Publication date
JPS49127465A (en) 1974-12-06
IT1005700B (en) 1976-09-30

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Legal Events

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