DE69804855D1 - Herstellung von wasserfreiem soda - Google Patents

Herstellung von wasserfreiem soda

Info

Publication number
DE69804855D1
DE69804855D1 DE69804855T DE69804855T DE69804855D1 DE 69804855 D1 DE69804855 D1 DE 69804855D1 DE 69804855 T DE69804855 T DE 69804855T DE 69804855 T DE69804855 T DE 69804855T DE 69804855 D1 DE69804855 D1 DE 69804855D1
Authority
DE
Germany
Prior art keywords
water
production
soda
free soda
crystals
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 - Fee Related
Application number
DE69804855T
Other languages
English (en)
Other versions
DE69804855T2 (de
Inventor
Albertus Meijer
Michael Geertman
Harald Oosterhof
Geert-Jan Witkamp
Rosmalen Maria Van
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.)
Technische Universiteit Delft
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Publication of DE69804855D1 publication Critical patent/DE69804855D1/de
Application granted granted Critical
Publication of DE69804855T2 publication Critical patent/DE69804855T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/35—Varying the content of water of crystallisation or the specific gravity
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/22—Purification
    • C01D7/24—Crystallisation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/35—Varying the content of water of crystallisation or the specific gravity
    • C01D7/37—Densifying sodium carbonate
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/38—Preparation in the form of granules, pieces or other shaped products
    • C01D7/40—Influencing the crystallisation process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE69804855T 1997-12-23 1998-12-22 Herstellung von wasserfreiem soda Expired - Fee Related DE69804855T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97204081 1997-12-23
US09/218,519 US6334989B1 (en) 1997-12-23 1998-12-22 Production of water-free soda
PCT/EP1998/008538 WO1999033750A1 (en) 1997-12-23 1998-12-22 Production of water-free soda

Publications (2)

Publication Number Publication Date
DE69804855D1 true DE69804855D1 (de) 2002-05-16
DE69804855T2 DE69804855T2 (de) 2002-12-19

Family

ID=26147206

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69804855T Expired - Fee Related DE69804855T2 (de) 1997-12-23 1998-12-22 Herstellung von wasserfreiem soda

Country Status (8)

Country Link
US (1) US6334989B1 (de)
EP (1) EP1042226B1 (de)
AT (1) ATE215909T1 (de)
AU (1) AU2277299A (de)
DE (1) DE69804855T2 (de)
ES (1) ES2175854T3 (de)
PT (1) PT1042226E (de)
WO (1) WO1999033750A1 (de)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670269A (en) 1950-07-13 1954-02-23 Columbia Southern Chem Corp Sodium carbonate
GB748443A (en) 1953-12-11 1956-05-02 Columbia Southern Chem Corp Improvements in or relating to sodium carbonate monohydrate and anhydrous sodium carbonate
FR1266274A (fr) * 1960-08-29 1961-07-07 Buna Chem Werke Veb Procédé de fabrication de soude calcinée de poids spécifique de déversement compris entre 0, 8 et 1, 6 kg/dm3
US3425795A (en) * 1966-08-09 1969-02-04 Allied Chem Method for preparing superdense sodium carbonate from wyoming trona and the product thereof
US3486844A (en) * 1967-12-29 1969-12-30 Phillips Petroleum Co Production of dense soda ash
US3725014A (en) 1971-04-21 1973-04-03 Allied Chem Sodium carbonate crystallization process with foam prevention
US3796794A (en) 1972-06-01 1974-03-12 Int Research & Dev Co Ltd Use of carboxylic acids as crystal growth modifiers for sodium carbonate monohydrate
US3933977A (en) 1974-01-11 1976-01-20 Intermountain Research And Development Corporation Process for producing sodium carbonate
US3975499A (en) 1974-06-05 1976-08-17 Fmc Corporation Sodium carbonate monohydrate crystallization
US4104033A (en) 1975-09-12 1978-08-01 Drew Chemical Corporation Foam prevention in sodium carbonate crystallization
US4183901A (en) 1976-01-23 1980-01-15 Fmc Corporation Process for crystallization of anhydrous sodium carbonate
US4879042A (en) 1980-08-18 1989-11-07 Hanson Donald N Method of crystallizing salts from aqueous solutions
US4374102A (en) 1981-11-13 1983-02-15 Nalco Chemical Company Polymers for controlling soda ash crystal formation
GB2109783B (en) * 1981-11-20 1985-08-14 Glaxo Group Ltd Crystalline sodium carbonate
FR2576589B1 (fr) 1985-01-30 1987-03-27 Solvay Procede de fabrication de carbonate de sodium anhydre dense et carbonate de sodium anhydre dense obtenu par ce procede
US6022385A (en) 1994-05-19 2000-02-08 Bowman; Ronald W. Process for the manufacture of sodium carbonate crystals from minerals or solutions
US5716419A (en) 1996-07-31 1998-02-10 Ppg Industries, Inc. Process for crystallization of mineral salts

Also Published As

Publication number Publication date
AU2277299A (en) 1999-07-19
DE69804855T2 (de) 2002-12-19
WO1999033750A1 (en) 1999-07-08
PT1042226E (pt) 2002-09-30
ATE215909T1 (de) 2002-04-15
US6334989B1 (en) 2002-01-01
EP1042226A1 (de) 2000-10-11
ES2175854T3 (es) 2002-11-16
EP1042226B1 (de) 2002-04-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: DERZEIT KEIN VERTRETER BESTELLT

8339 Ceased/non-payment of the annual fee