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NO985322L - Process for the preparation of magnesium chloride from seawater - Google Patents

Process for the preparation of magnesium chloride from seawater

Info

Publication number
NO985322L
NO985322L NO985322A NO985322A NO985322L NO 985322 L NO985322 L NO 985322L NO 985322 A NO985322 A NO 985322A NO 985322 A NO985322 A NO 985322A NO 985322 L NO985322 L NO 985322L
Authority
NO
Norway
Prior art keywords
seawater
preparation
magnesium chloride
magnesium
production
Prior art date
Application number
NO985322A
Other languages
Norwegian (no)
Other versions
NO985322D0 (en
Inventor
Thor G Thorsen
Roger I Hagen
Ole Waernes
Birger Langseth
Original Assignee
Norsk Hydro As
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 Norsk Hydro As filed Critical Norsk Hydro As
Priority to NO985322A priority Critical patent/NO985322L/en
Publication of NO985322D0 publication Critical patent/NO985322D0/en
Priority to AU11913/00A priority patent/AU1191300A/en
Priority to PCT/NO1999/000342 priority patent/WO2000029327A1/en
Publication of NO985322L publication Critical patent/NO985322L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58—Multistep processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B01D61/0271—Nanofiltration comprising multiple nanofiltration steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/04—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/26—Magnesium halides
    • C01F5/30—Chlorides
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/147—Microfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

En fremgangsmåte er beskrevet for fremstilling av magnesiumklorid fra sjøvann til bruk ved fremstilling av magnesium metall. Fremgangsmåten er basert på bruk av selektive nanofiltreringsmembraner for å separere magnesium direkte fra sjøvannet.A process is described for the preparation of magnesium chloride from seawater for use in the production of magnesium metal. The process is based on the use of selective nanofiltration membranes to separate magnesium directly from the seawater.

NO985322A 1998-11-13 1998-11-13 Process for the preparation of magnesium chloride from seawater NO985322L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO985322A NO985322L (en) 1998-11-13 1998-11-13 Process for the preparation of magnesium chloride from seawater
AU11913/00A AU1191300A (en) 1998-11-13 1999-11-12 Method for production of magnesium chloride from sea water
PCT/NO1999/000342 WO2000029327A1 (en) 1998-11-13 1999-11-12 Method for production of magnesium chloride from sea water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO985322A NO985322L (en) 1998-11-13 1998-11-13 Process for the preparation of magnesium chloride from seawater

Publications (2)

Publication Number Publication Date
NO985322D0 NO985322D0 (en) 1998-11-13
NO985322L true NO985322L (en) 2000-05-15

Family

ID=19902629

Family Applications (1)

Application Number Title Priority Date Filing Date
NO985322A NO985322L (en) 1998-11-13 1998-11-13 Process for the preparation of magnesium chloride from seawater

Country Status (3)

Country Link
AU (1) AU1191300A (en)
NO (1) NO985322L (en)
WO (1) WO2000029327A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395946B (en) * 2002-12-05 2006-01-18 Thomas Altmann Method for the production of sodium chloride from seawater
CN100515959C (en) * 2006-10-09 2009-07-22 叶建荣 Manual collecting and filtering apparatus
CN101987765B (en) * 2009-08-07 2012-06-27 无锡尚德太阳能电力有限公司 Sewage treatment method and system used by same
NO337146B1 (en) * 2013-06-24 2016-02-01 Fmc Kongsberg Subsea As Subsea system and method for filtration and treatment of seawater.
CN104261443A (en) * 2014-09-25 2015-01-07 池州西恩新材料科技有限公司 Process for calcium-method production of magnesium hydrate by using nanofiltration membrane
WO2017039724A1 (en) 2015-08-28 2017-03-09 Albemarle Corporation Processes for recovering lithium values from lithium-containing brines
US10947143B2 (en) 2019-04-01 2021-03-16 Saline Water Conversion Corporation Desalination brine concentration system and method
CN112956488B (en) * 2020-12-22 2022-04-26 天津海源汇科技有限公司 Preparation method of sea salt disinfectant
US11806668B2 (en) 2021-12-14 2023-11-07 Saline Water Conversion Corporation Method and system for extraction of minerals based on divalent cations from brine
JP2025041177A (en) * 2023-09-13 2025-03-26 三菱重工業株式会社 Magnesium chloride production system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB541450A (en) *
GB536266A (en) * 1939-11-13 1941-05-08 Ocean Salts Products Ltd Preparation of magnesium chloride from sea water
NO303324B1 (en) * 1996-11-13 1998-06-29 Norsk Hydro As Procedure for Removing Sulfate from Concentrated MgCl2 Solutions

Also Published As

Publication number Publication date
WO2000029327A1 (en) 2000-05-25
NO985322D0 (en) 1998-11-13
AU1191300A (en) 2000-06-05

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application