GB682356A - - Google Patents
Info
- Publication number
- GB682356A GB682356A GB23601/50A GB2360150A GB682356A GB 682356 A GB682356 A GB 682356A GB 23601/50 A GB23601/50 A GB 23601/50A GB 2360150 A GB2360150 A GB 2360150A GB 682356 A GB682356 A GB 682356A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- sintering
- gases
- waste
- constituents
- 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
- C03B3/00—Charging the melting furnaces
- C03B3/02—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
-
- 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
- C03B5/12—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in shaft 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Glass Melting And Manufacturing (AREA)
- Glass Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
682,356. Glass manufacture. METALLGES. AKT.-GES. Sept. 26, 1950 [Oct. 31, 1949; Oct. 31, 1949], No. 23601/50. Class 56. Mixtures of initial materials for use in the production of glass are prepared by mixing the constituents consisting substantially of quartz, soda, and lime with waste glass material and solid fuel, granulating and sintering the granulated mixture disposed in a layer on a gaspermeable grate by passing air through the layer in accordance with the suction draught sintering process to form a separate intermediate product adapted to be subsequently melted in a glass melting furnace. Alternatively the constituents and waste glass without fuel may be mixed, granulated, and sintered, whilst disposed on the gas-permeable base of a sintering apparatus, by the passage therethrough of hot gases, for example the hot waste gases of glass furnaces. Advantageously calcium carbonate is replaced by quicklime or calcium hydrate, and the coke fuel is moistened and powdered with calcium oxide before being mixed with the granulated constituents. The permeability of the charge to gas during the sintering process is further ensured by adding 1-4 per cent, preferably 2 per cent, of wood flour, which burns at a low temperature leaving cavities. Additions such as arsenic, ZnO, CeO 2 , CaSO 4 e.g. as gypsum or anhydrite, or other alkaline earth sulphates may also be made, such additions may be made during sintering and are not too finely ground. Sodium sulphate or alkali chlorides may be used instead of soda. The fuels preferably have low ash and iron contents, and the SiO 2 , CaO, Al 2 O 3 , and MgO in the coke ash may be taken into account in compounding the mixture. Burnt limestone may be used as a quicklime, or lime sludge or calcined dolomite may be used. 10-50 per cent by weight of glass waste, cullet, or glass fragments disintegrated to particles below 5 mms. may be used as waste or return material to be added to the initial constituents. The grate of the sintering apparatus is advantageously first covered with a layer of presintered material. Granular quartz of maximum particle size of 1 to 2 mms. is a suitable source of SiO 2 . A short intermediate furnace, e.g. a rotary tube furnace traversed by part of the incandescent gases of the tank furnace with air added to maintain the oxidising condition of the gases, may be interposed between the sintering apparatus and the melting tank to preheat the sinter, re-oxidise any reduced iron oxide, and to burn out the final carbon residues. Advantageously hot gases having a low sulphur content are used for the sintering, and care is taken e.g. by adding sufficient air to the hot combustion gases to ensure the complete combustion of any sulphur obtained as sulphide during the reaction of the components.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1023541X | 1949-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB682356A true GB682356A (en) | 1952-11-05 |
Family
ID=7714817
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23601/50A Expired GB682356A (en) | 1949-10-31 | 1950-09-26 | |
GB1800/52A Expired GB692136A (en) | 1949-10-31 | 1952-01-22 | Process for producing glass |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1800/52A Expired GB692136A (en) | 1949-10-31 | 1952-01-22 | Process for producing glass |
Country Status (5)
Country | Link |
---|---|
BE (2) | BE497607A (en) |
DE (1) | DE873601C (en) |
FR (1) | FR1023541A (en) |
GB (2) | GB682356A (en) |
NL (1) | NL84076C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1207557B (en) * | 1961-01-16 | 1965-12-23 | Ernst Holger Bertil Nystroem | Process for the pretreatment of the mixture in the manufacture of glass or vitreous materials |
US3350213A (en) * | 1961-12-07 | 1967-10-31 | Saint Gobain | Method of and apparatus for glass making |
CN110577362A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | Formula of more environment-friendly toughened glass |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
YU46333B (en) * | 1987-04-30 | 1993-05-28 | Oy Partek Ab | MELTING OVEN |
-
1950
- 1950-07-04 NL NL154594A patent/NL84076C/xx active
- 1950-08-16 BE BE497607D patent/BE497607A/xx unknown
- 1950-08-17 FR FR1023541D patent/FR1023541A/en not_active Expired
- 1950-09-26 GB GB23601/50A patent/GB682356A/en not_active Expired
-
1951
- 1951-04-20 DE DEM9247A patent/DE873601C/en not_active Expired
-
1952
- 1952-01-22 GB GB1800/52A patent/GB692136A/en not_active Expired
- 1952-02-02 BE BE508941D patent/BE508941A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1207557B (en) * | 1961-01-16 | 1965-12-23 | Ernst Holger Bertil Nystroem | Process for the pretreatment of the mixture in the manufacture of glass or vitreous materials |
US3350213A (en) * | 1961-12-07 | 1967-10-31 | Saint Gobain | Method of and apparatus for glass making |
CN110577362A (en) * | 2019-10-21 | 2019-12-17 | 徐州宏华玻璃科技有限公司 | Formula of more environment-friendly toughened glass |
Also Published As
Publication number | Publication date |
---|---|
BE508941A (en) | 1953-07-17 |
GB692136A (en) | 1953-05-27 |
FR1023541A (en) | 1953-03-19 |
BE497607A (en) | 1950-12-16 |
DE873601C (en) | 1953-04-16 |
NL84076C (en) | 1957-02-15 |
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