GB979378A - Manufacture of dense sodium carbonate - Google Patents

Manufacture of dense sodium carbonate

Info

Publication number
GB979378A
GB979378A GB485463A GB485463A GB979378A GB 979378 A GB979378 A GB 979378A GB 485463 A GB485463 A GB 485463A GB 485463 A GB485463 A GB 485463A GB 979378 A GB979378 A GB 979378A
Authority
GB
United Kingdom
Prior art keywords
na2co3
solution
carbonate
bicarbonate
reactants
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
GB485463A
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of GB979378A publication Critical patent/GB979378A/en
Expired 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Dense sodium carbonate is prepared by reacting caustic soda solution with sufficient sodium bicarbonate, with or without CO2, in the presence of anhydrous Na2CO3 to fix all water as Na2CO3.H2O and calcining the monohydrate. Caustic soda solutions, containing more than 40% NaOH, may be those from the electrolysis of sodium chloride in mercury-cathode cells, at 70 DEG C. The crude product of the carbonation of ammoniacal brine in the ammonia-soda process may be the moist sodium bicarbonate, and the light Na2CO3 product of such process, at 180 DEG C. may also be the anhydrous Na2CO3. The reaction may be at 100 DEG C. in a stirred vessel, a paddle or screw mixer, or a rotating drum. The reactants may be added simultaneously or successively in any order, e.g. bicarbonate, carbonate, solution, or solution, bicarbonate, carbonate, or half carbonate, bicarbonate, half carbonate, solution. Alternatively, a saturated solution of Na2CO3 may be added to the three reactants, giving a more fluid magma, e.g. 200-400 g./1000 g. The saturated Na2CO3 solution after removal of the Na2CO3.H2O may be used again. Particle size distribution of the final product is tabulated.
GB485463A 1962-02-09 1963-02-06 Manufacture of dense sodium carbonate Expired GB979378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE489598 1962-02-09

Publications (1)

Publication Number Publication Date
GB979378A true GB979378A (en) 1965-01-01

Family

ID=3844654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB485463A Expired GB979378A (en) 1962-02-09 1963-02-06 Manufacture of dense sodium carbonate

Country Status (2)

Country Link
ES (1) ES284749A1 (en)
GB (1) GB979378A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294925A (en) * 1994-11-11 1996-05-15 Bayer Ag Production of heavy soda and its use
US20120298522A1 (en) * 2011-01-11 2012-11-29 Riyaz Shipchandler Systems and methods for soda ash production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294925A (en) * 1994-11-11 1996-05-15 Bayer Ag Production of heavy soda and its use
US20120298522A1 (en) * 2011-01-11 2012-11-29 Riyaz Shipchandler Systems and methods for soda ash production

Also Published As

Publication number Publication date
ES284749A1 (en) 1963-05-16

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