FR3088220B1 - PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION - Google Patents

PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION Download PDF

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Publication number
FR3088220B1
FR3088220B1 FR1860471A FR1860471A FR3088220B1 FR 3088220 B1 FR3088220 B1 FR 3088220B1 FR 1860471 A FR1860471 A FR 1860471A FR 1860471 A FR1860471 A FR 1860471A FR 3088220 B1 FR3088220 B1 FR 3088220B1
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France
Prior art keywords
liquid
crystallization
implementation
installation
salts dissolved
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FR1860471A
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French (fr)
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FR3088220A1 (en
Inventor
Jean-Philippe Ricard
Jonathan Lesbarreres
Pierre Archambault
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ALCION ENVIRONNEMENT
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ALCION ENVIRONNEMENT
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Priority to FR1860471A priority Critical patent/FR3088220B1/en
Publication of FR3088220A1 publication Critical patent/FR3088220A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/02—Preparation of sulfates from alkali metal salts and sulfuric acid or bisulfates; Preparation of bisulfates
    • 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
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F2001/5218—Crystallization

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'objet de l'invention est un Procédé de cristallisation de sels dissous dans un liquide, caractérisé en ce qu'il comprend au moins la succession des étapes suivantes : a. détente d'un gaz liquéfié en présence du liquide dans lequel sont dissous les sels, de façon à obtenir un mélange constitué d'une fraction solide constituée par au moins des cristaux des sels, et d'une fraction liquide, b. séparation de la fraction solide de la fraction liquide du mélange obtenu à l'étape a., et récupération de chacune des deux fractions.The object of the invention is a process for the crystallization of salts dissolved in a liquid, characterized in that it comprises at least the succession of the following steps: a. expansion of a liquefied gas in the presence of the liquid in which the salts are dissolved, so as to obtain a mixture consisting of a solid fraction consisting of at least crystals of the salts, and of a liquid fraction, b. separation of the solid fraction from the liquid fraction of the mixture obtained in step a., and recovery of each of the two fractions.

FR1860471A 2018-11-14 2018-11-14 PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION Active FR3088220B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1860471A FR3088220B1 (en) 2018-11-14 2018-11-14 PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1860471A FR3088220B1 (en) 2018-11-14 2018-11-14 PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION

Publications (2)

Publication Number Publication Date
FR3088220A1 FR3088220A1 (en) 2020-05-15
FR3088220B1 true FR3088220B1 (en) 2023-04-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1860471A Active FR3088220B1 (en) 2018-11-14 2018-11-14 PROCESS FOR THE CRYSTALLIZATION OF SALTS DISSOLVED IN A LIQUID AND AN INSTALLATION FOR THEIR IMPLEMENTATION

Country Status (1)

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FR (1) FR3088220B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486848A (en) * 1966-08-05 1969-12-30 Cosmodyne Inc Refrigerated crystallizer system
DE2162126A1 (en) * 1971-02-24 1972-08-31 Kali Veb K Anhydrous sodium sulphate crystal prodn - by crystallisation from aq soln upon addition of acetone
DE2158754A1 (en) * 1971-11-26 1973-06-07 Klaus Zondek Juice concentration or sea water desalination - - by direct counterflow contact with expanding pressurized refrigeran
JPS4933883A (en) * 1972-07-28 1974-03-28

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Publication number Publication date
FR3088220A1 (en) 2020-05-15

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