FR2058203A1 - Carbonate crystals prodn with regulation - of growth - Google Patents

Carbonate crystals prodn with regulation - of growth

Info

Publication number
FR2058203A1
FR2058203A1 FR7029451A FR7029451A FR2058203A1 FR 2058203 A1 FR2058203 A1 FR 2058203A1 FR 7029451 A FR7029451 A FR 7029451A FR 7029451 A FR7029451 A FR 7029451A FR 2058203 A1 FR2058203 A1 FR 2058203A1
Authority
FR
France
Prior art keywords
growth
regulation
prodn
carbonate crystals
soln
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
FR7029451A
Other languages
French (fr)
Other versions
FR2058203B1 (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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
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 Ernst Leitz Wetzlar GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of FR2058203A1 publication Critical patent/FR2058203A1/en
Application granted granted Critical
Publication of FR2058203B1 publication Critical patent/FR2058203B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

gas is passed through selectively permeable membrane into soln. containing desired cations (e.g. Ca) and contacted with seed crystal, concentration of cations in soln. being kept constant. Process is particularly simple and allows regulation of growth.
FR7029451A 1969-08-11 1970-08-10 Carbonate crystals prodn with regulation - of growth Granted FR2058203A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691940768 DE1940768C3 (en) 1969-08-11 1969-08-11 Process for the production of calcium carbonate crystals and device for carrying out the process

Publications (2)

Publication Number Publication Date
FR2058203A1 true FR2058203A1 (en) 1971-05-28
FR2058203B1 FR2058203B1 (en) 1973-01-12

Family

ID=5742489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7029451A Granted FR2058203A1 (en) 1969-08-11 1970-08-10 Carbonate crystals prodn with regulation - of growth

Country Status (2)

Country Link
DE (1) DE1940768C3 (en)
FR (1) FR2058203A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019211381A1 (en) * 2018-05-02 2019-11-07 Climate Solutions Aps Permanent storage of carbon dioxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019211381A1 (en) * 2018-05-02 2019-11-07 Climate Solutions Aps Permanent storage of carbon dioxide
US11618688B2 (en) 2018-05-02 2023-04-04 Climate Solutions Aps Permanent storage of carbon dioxide

Also Published As

Publication number Publication date
DE1940768A1 (en) 1971-02-25
DE1940768B2 (en) 1975-01-09
DE1940768C3 (en) 1975-08-14
FR2058203B1 (en) 1973-01-12

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Legal Events

Date Code Title Description
ST Notification of lapse