GB1133434A - Production of boric oxide - Google Patents
Production of boric oxideInfo
- Publication number
- GB1133434A GB1133434A GB595866A GB595866A GB1133434A GB 1133434 A GB1133434 A GB 1133434A GB 595866 A GB595866 A GB 595866A GB 595866 A GB595866 A GB 595866A GB 1133434 A GB1133434 A GB 1133434A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boric oxide
- layer
- feb
- molten
- fed
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
-
- 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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/14—Silica-free oxide glass compositions containing boron
-
- 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
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
Abstract
1,133,434. Boric oxide. UNITED STATES BORAX & CHEMICAL CORP. 10 Feb., 1966 [15 Feb., 1965], No. 5958/66. Heading C1A. Vitreous boric oxide is produced by heating an intimate mixture of sulphuric acid (of at least 78% concentration) and at least one borate selected from the alkali metal borates and alkaline earth metal borates (those of magnesium, calcium, strontium and barium) at 750-1090‹ C. to form a molten, two-layered, reaction product, removing one layer from the other while molten and cooling the separated layer containing the boric oxide. The reaction mixture is fed by screw conveyer 1 to a furnace heated by gas burners 2. The melt separates into two layers, the upper (boric oxide-containing) layer flowing over dam 7 and being further heated to remove gaseous impurities before being removed through opening 5 and fed to chilled roll coolers 12. The lower layer is removed at 4 and cooled between rollers 10 and 11. The borates exemplified are sodium and potassium tetraborates, sodium pentaborate and the hydrates thereof, also borate ores, e.g. colemanite (Ca 2 B 6 O 11 À5H 2 O), ulexite (NaCaB 5 O 9 À 8H 2 O).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43265265A | 1965-02-15 | 1965-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1133434A true GB1133434A (en) | 1968-11-13 |
Family
ID=23717047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB595866A Expired GB1133434A (en) | 1965-02-15 | 1966-02-10 | Production of boric oxide |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE676454A (en) |
| DE (1) | DE1249237B (en) |
| GB (1) | GB1133434A (en) |
-
0
- DE DENDAT1249237D patent/DE1249237B/en not_active Withdrawn
-
1966
- 1966-02-10 GB GB595866A patent/GB1133434A/en not_active Expired
- 1966-02-14 BE BE676454D patent/BE676454A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE676454A (en) | 1966-08-16 |
| DE1249237B (en) | 1967-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO128851B (en) | ||
| GB1133434A (en) | Production of boric oxide | |
| US4013436A (en) | Method for the production of objects of quartz-glass by drawing | |
| GB1019821A (en) | Improvements in methods of bonding refractory bodies | |
| GB1145143A (en) | Improvements relating to the manufacture of flat glass | |
| GB1137582A (en) | A method for producing and/or refining of alkali metal halides | |
| GB900668A (en) | Method for production of bismuth | |
| US3471255A (en) | Method for producing boric oxide | |
| GB1157675A (en) | Production of Boric Oxide | |
| US3450497A (en) | Process for producing boric oxide | |
| US3026178A (en) | Preparation of boric oxide and boric acid | |
| GB1210961A (en) | Glass melting and refining furnace | |
| US3516788A (en) | Boric oxide having a low rate of moisture pick-up | |
| US3390955A (en) | Sodium calcium metaborate | |
| GB724404A (en) | Process and apparatus for the production of fibres of glass or other similar mineralmaterials | |
| Tandon et al. | Distribution Equilibria of Selenium between Liquid Copper and Na2O–B2O3–CaO Slags | |
| GB1157680A (en) | Production of a High Boric Oxide-containing Product | |
| GB303328A (en) | Improvements in the purification of antimonial lead alloys and other antimonial metals | |
| TURNER | Recent Studies of the Fundamental Processes Underlying Glassmelting | |
| GB968253A (en) | Monocrystalline metal oxide materials | |
| GB1157679A (en) | Process for Producing Boric Oxide | |
| GB1289647A (en) | ||
| GB956832A (en) | Method and apparatus for producing films and flakes from heat softenable material | |
| GB535214A (en) | Preparation of titanium dioxide | |
| GB456462A (en) | Improvements relating to the casting of aluminium and its alloys |