ES448373A1 - Preparing alkali metal silicate glass - Google Patents

Preparing alkali metal silicate glass

Info

Publication number
ES448373A1
ES448373A1 ES448373A ES448373A ES448373A1 ES 448373 A1 ES448373 A1 ES 448373A1 ES 448373 A ES448373 A ES 448373A ES 448373 A ES448373 A ES 448373A ES 448373 A1 ES448373 A1 ES 448373A1
Authority
ES
Spain
Prior art keywords
molten glass
bed
furnace
bubbles
potassium
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
ES448373A
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.)
PQ Corp
Original Assignee
PQ Corp
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
Priority claimed from US05/582,070 external-priority patent/US3960532A/en
Application filed by PQ Corp filed Critical PQ Corp
Publication of ES448373A1 publication Critical patent/ES448373A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/08—Other methods of shaping glass by foaming
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/18—Stirring devices; Homogenisation
    • C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight

Abstract

A process for the production of an alkali metal silicate glass with a molar ratio of 1.5 to 4.5 parts SiO2 per part M2O, where M is selected from the group consisting of sodium, potassium, and mixtures of sodium and potassium, and containing from 0.05 to 2% of water and sufficient bubbles to cause fracturing, comprising the operations of: (a) loading raw materials, alkali sources selected from the group consisting of sodium carbonate, potassium carbonate, and mixtures of sodium carbonate and potassium carbonate and a source of silica such as sand in an open hearth furnace with a bed area for fusion reactions, equipped with an outlet port and some loading gantries; (b) maintaining the temperature within said furnace above 1093ºC so that a bed of molten silicate glass is formed and that the raw materials that have not reacted float on said bed of molten glass; (c) introducing saturated and dry water vapor under pressure into the molten glass through bubbling elements located in the furnace bed area so that the water vapor bubbles pass from the bottom of said molten glass bed to the upper part, the pressure of said water vapor being regulated so as to produce bubbles of 8 to 18'' (20.3 to 45.7 cm) in diameter that break on the surface of the molten glass at a rate of 5 to 20 bubbles per second; and (d) removing the molten glass from the furnace. (Machine-translation by Google Translate, not legally binding)
ES448373A 1975-05-29 1976-05-29 Preparing alkali metal silicate glass Expired ES448373A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/582,070 US3960532A (en) 1974-03-04 1975-05-29 Preparing alkali metal silicate glass with bubbles

Publications (1)

Publication Number Publication Date
ES448373A1 true ES448373A1 (en) 1977-11-01

Family

ID=24327714

Family Applications (1)

Application Number Title Priority Date Filing Date
ES448373A Expired ES448373A1 (en) 1975-05-29 1976-05-29 Preparing alkali metal silicate glass

Country Status (9)

Country Link
JP (1) JPS51146509A (en)
AT (1) AT371420B (en)
AU (1) AU498402B2 (en)
DE (1) DE2624122A1 (en)
ES (1) ES448373A1 (en)
FR (1) FR2312461A1 (en)
GB (1) GB1527155A (en)
IT (1) IT1061326B (en)
MX (1) MX143241A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102916A (en) * 1977-02-22 1978-09-07 Nippon Electric Glass Co Production of glass having constant water content
DE3012073C2 (en) * 1980-03-28 1986-10-09 Henkel KGaA, 4000 Düsseldorf Process for the production of water-soluble alkali metal silicates
EG25130A (en) 1999-02-05 2011-09-18 Saint Gobain Vitrage Process and apparatus for preparing batch materials for the manufacture of glass.
ES2209564B2 (en) * 2000-08-11 2005-03-16 Sociedad Anonima Minera Catalano-Aragonesa-Samca PROCEDURE FOR THE PRODUCTION OF SOLUBLE GLASSES AND SULFUROUS ANHYDRIDE THROUGH THERMAL METHODS.
EP2957545A1 (en) * 2014-06-17 2015-12-23 AGC Glass Europe Device for injecting gaseous fluid

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254079A (en) * 1940-02-06 1941-08-26 Pittsburgh Plate Glass Co Method and apparatus for forming and refining glass
US2387222A (en) * 1941-09-17 1945-10-16 Owens Illinois Glass Co Method of refining glass
US2331052A (en) * 1941-11-27 1943-10-05 Owens Illinois Glass Co Method of refining molten glass
US3015190A (en) * 1952-10-13 1962-01-02 Cie De Saint Gobain Soc Apparatus and method for circulating molten glass
DE1020319B (en) * 1954-10-29 1957-12-05 Diamond Alkali Co Process for the preparation of soluble anhydrous alkali silicates
US2909005A (en) * 1956-11-13 1959-10-20 Owens Illinois Glass Co Glass melting furnace with bubbler patterns
US3104967A (en) * 1956-11-13 1963-09-24 Owens Illinois Glass Co Glass furnace bubbler patterns
DE2210793A1 (en) * 1971-09-20 1973-04-05 Lausitzer Glas Veb K GLASS MELTING FURNACE
NL7501530A (en) * 1975-02-10 1976-08-12 Philips Nv PROCESS FOR MELTING A GLASS MIX AND GLASS OVEN FOR PERFORMING THE PROCEDURE.

Also Published As

Publication number Publication date
JPS51146509A (en) 1976-12-16
FR2312461A1 (en) 1976-12-24
MX143241A (en) 1981-04-06
AT371420B (en) 1983-06-27
DE2624122A1 (en) 1976-12-16
IT1061326B (en) 1983-02-28
GB1527155A (en) 1978-10-04
AU1439876A (en) 1977-12-01
FR2312461B1 (en) 1982-08-20
AU498402B2 (en) 1979-03-08
ATA396576A (en) 1982-11-15

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