GB986635A - Clay treatment - Google Patents
Clay treatmentInfo
- Publication number
- GB986635A GB986635A GB4250160A GB4250160A GB986635A GB 986635 A GB986635 A GB 986635A GB 4250160 A GB4250160 A GB 4250160A GB 4250160 A GB4250160 A GB 4250160A GB 986635 A GB986635 A GB 986635A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- clay
- foamed
- calcined
- deflocculating
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B33/00—Clay-wares
- C04B33/22—Grog products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Stable foamed aqueous slurries of clay are calcined to yield a clay not requiring grinding and yet suitable for use as a filler or pigment. The foamed slurry is fed into the calcining furnace as a spray or as a layer on refractory slabs. The solids/liquid ratio may be increased by adjusting the pH value of the slurry by known methods or by adding a deflocculating agent. The deflocculating agents e.g. sodium carbonate, silicate, hexametaphosphate or pyrophosphate, may be incorporated into the slurry prior to the addition of the foaming agent e.g. sodium alkyl naphthaelene sulphonates and saponin. The foam may be produced by whisking or by gas generation in situ e.g. acid-carbonate or alkali-aluminium reactions occurring in the slurry or it may be generated in the spraying head of the furnace. The example refers to a foamed slurry being calcined at 1100 DEG C. in an oxidizing atmosphere, the resulting mass being in a friable cellular state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4250160A GB986635A (en) | 1960-12-09 | 1960-12-09 | Clay treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4250160A GB986635A (en) | 1960-12-09 | 1960-12-09 | Clay treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB986635A true GB986635A (en) | 1965-03-17 |
Family
ID=10424716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4250160A Expired GB986635A (en) | 1960-12-09 | 1960-12-09 | Clay treatment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB986635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395456A (en) | 1980-01-10 | 1983-07-26 | Imperial Chemical Industries Limited | Inorganic foam |
| US5977003A (en) * | 1995-09-22 | 1999-11-02 | Ecc International Ltd. | Particulate materials |
| US6030704A (en) * | 1996-06-21 | 2000-02-29 | Ecc International Ltd. | Granular materials comprising inorganic silicon-containing material |
-
1960
- 1960-12-09 GB GB4250160A patent/GB986635A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395456A (en) | 1980-01-10 | 1983-07-26 | Imperial Chemical Industries Limited | Inorganic foam |
| US5977003A (en) * | 1995-09-22 | 1999-11-02 | Ecc International Ltd. | Particulate materials |
| US6030704A (en) * | 1996-06-21 | 2000-02-29 | Ecc International Ltd. | Granular materials comprising inorganic silicon-containing material |
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