ES302689A1 - Improvements in or relating to the manufacture of alkali metal silicate or glass - Google Patents

Improvements in or relating to the manufacture of alkali metal silicate or glass

Info

Publication number
ES302689A1
ES302689A1 ES0302689A ES302689A ES302689A1 ES 302689 A1 ES302689 A1 ES 302689A1 ES 0302689 A ES0302689 A ES 0302689A ES 302689 A ES302689 A ES 302689A ES 302689 A1 ES302689 A1 ES 302689A1
Authority
ES
Spain
Prior art keywords
alkali metal
glass
nitrate
give
nocl
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
ES0302689A
Other languages
Spanish (es)
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain 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 Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of ES302689A1 publication Critical patent/ES302689A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/02—Pretreated ingredients
    • C03C1/026—Pelletisation or prereacting of powdered raw materials
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/083—Compounds containing nitrogen and non-metals and optionally metals containing one or more halogen atoms
    • C01B21/084—Compounds containing nitrogen and non-metals and optionally metals containing one or more halogen atoms containing also one or more oxygen atoms, e.g. nitrosyl halides
    • C01B21/0842—Halides of nitrogen oxides
    • C01B21/0846—Nitrosyl chloride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/32—Alkali metal silicates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/03—Preparation from chlorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/18—Nitrates of ammonium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Glass Compositions (AREA)

Abstract

An alkali metal, e.g. Na, silicate is prepared by reacting an alkali metal chloride with NO2 to give the nitrate and NOCl reacting the nitrate with SiO2, e.g. sand, to give the silicate and NO oxidizing the NO to NO2, which is recycled and decomposing the NOCl into Cl2 and NO. This NO may be oxidized (e.g. by decomposing in O2) and the NO2 recycled. The chloride -NO2 reaction occurs at room temperature the nitrate -SiO2 reaction may be carried out in a rotary or glass-making furnace. Glass-making ingredients, e.g. Ca, Mg, Al and B, and alkali metal salts, e.g. Na2CO3, Na2SO4 and borax, may be added to SiO2 with the nitrate. The Ca may be added as limestone or dolomite, in which case Co2 is formed and may be separated from the NO by washing with water, or as sulphate, in which case SO3 is formed which reacts with the alkali metal chloride to give sulphate and HCl, the latter reacting with NO to give NOCl.
ES0302689A 1963-07-31 1964-07-31 Improvements in or relating to the manufacture of alkali metal silicate or glass Expired ES302689A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR943306A FR1371968A (en) 1963-07-31 1963-07-31 Manufacturing process of alkali silicate or glass

Publications (1)

Publication Number Publication Date
ES302689A1 true ES302689A1 (en) 1965-01-01

Family

ID=8809597

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0302689A Expired ES302689A1 (en) 1963-07-31 1964-07-31 Improvements in or relating to the manufacture of alkali metal silicate or glass

Country Status (8)

Country Link
BE (1) BE651297A (en)
CH (1) CH430967A (en)
DE (1) DE1236483B (en)
ES (1) ES302689A1 (en)
FR (1) FR1371968A (en)
GB (1) GB1066469A (en)
NL (1) NL6408701A (en)
SE (1) SE303995B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131626A (en) * 1976-12-21 1978-12-26 Allied Chemical Corporation Process for producing bromine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2007478A (en) * 1931-02-02 1935-07-09 Shell Dev Production of nitrates from metal halides

Also Published As

Publication number Publication date
NL6408701A (en) 1965-02-01
DE1236483B (en) 1967-03-16
GB1066469A (en) 1967-04-26
SE303995B (en) 1968-09-16
FR1371968A (en) 1964-09-11
CH430967A (en) 1967-02-28
BE651297A (en) 1965-02-01

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