GB1069228A - Improvements in or relating to the refining of glass - Google Patents
Improvements in or relating to the refining of glassInfo
- Publication number
- GB1069228A GB1069228A GB4882765A GB4882765A GB1069228A GB 1069228 A GB1069228 A GB 1069228A GB 4882765 A GB4882765 A GB 4882765A GB 4882765 A GB4882765 A GB 4882765A GB 1069228 A GB1069228 A GB 1069228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platinum
- glass
- batch
- lined furnace
- rod
- 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
Links
Classifications
-
- 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
- C03B5/225—Refining
-
- 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
- C03B5/06—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in pot furnaces
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/17—Solid materials amorphous, e.g. glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
Abstract
In the production of platinum-free glass melt, particularly for laser glass, the glass batch is fired in a platinum-lined furnace in a nitrogen atmosphere. The batch is first reacted in a ceramic lined furnace to remove carbon, nitrogen or water when present, the melted batch then being poured through a surrounding chamber into the platinum-lined furnace, the chamber being already cleared of oxygen and the nitrogen atmosphere maintained throughout firing, which may be assisted by platinum-plated stirring means for removing striae and bubbles. The laser glass may then be drawn out into a rod or cast into a rod-shaped mould. A laser glass composition is given in weight percentages: SiO2, 67.1; Na2O, 7.2; K2O, 10.9; BaO, 4.8; Sb2O3, 1.0; Al2O3, 1.5; ZnO, 1.5; Nd2O3, 5.0; Li2O, 1.0.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42183764A | 1964-12-29 | 1964-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1069228A true GB1069228A (en) | 1967-05-17 |
Family
ID=23672248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4882765A Expired GB1069228A (en) | 1964-12-29 | 1965-11-17 | Improvements in or relating to the refining of glass |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1460328A (en) |
| GB (1) | GB1069228A (en) |
-
1965
- 1965-11-17 GB GB4882765A patent/GB1069228A/en not_active Expired
- 1965-12-17 FR FR42721A patent/FR1460328A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1460328A (en) | 1966-11-25 |
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