GB870320A - Mullite porcelain - Google Patents
Mullite porcelainInfo
- Publication number
- GB870320A GB870320A GB24699/59A GB2469959A GB870320A GB 870320 A GB870320 A GB 870320A GB 24699/59 A GB24699/59 A GB 24699/59A GB 2469959 A GB2469959 A GB 2469959A GB 870320 A GB870320 A GB 870320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mullite
- sio2
- al2o3
- kaolin
- less
- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/185—Mullite 3Al2O3-2SiO2
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
A mullite porcelain is produced by calcining a mixture containing by weight 70% to 80% mullite grog, 20% to 30% ball clay and 0 to 10% kaolin; the mullite grog is 95% crystalline mullite containing 75% Al2O3 and 25% SiO2, the ball clay containing 28% to 31% Al2O3 and 53% to 56% SiO2 with less than 20% free SiO2 and a Seger Cone equivalent of 32 to 34, while the kaolin contains 36% to 38% Al2O3 and 46% to 48% SiO2 with less than 5% free SiO2 and a Seger Cone equivalent of 35 to 36. The mullite grog which may contain 2% corundum and 3% glass is formed by calcining a mixture of low alkali content Al2O3 and kaolin clay between 3245 DEG F. and 3326 DEG F. The ground mixture is cast, pressed or extruded, and for casting the ball clay should contain less than 10% illite and the kaolin should have 93% of its particles finer than 10 micron.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US870320XA | 1958-09-08 | 1958-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB870320A true GB870320A (en) | 1961-06-14 |
Family
ID=22202700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24699/59A Expired GB870320A (en) | 1958-09-08 | 1959-07-17 | Mullite porcelain |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB870320A (en) |
-
1959
- 1959-07-17 GB GB24699/59A patent/GB870320A/en not_active Expired
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