FR2354301A1 - Foamed ceramic prodn. - from mixt. of silicate materials, sodium hydroxide, difficultly oxidisable cpd. forming pores and strong oxidising agent - Google Patents
Foamed ceramic prodn. - from mixt. of silicate materials, sodium hydroxide, difficultly oxidisable cpd. forming pores and strong oxidising agentInfo
- Publication number
- FR2354301A1 FR2354301A1 FR7717755A FR7717755A FR2354301A1 FR 2354301 A1 FR2354301 A1 FR 2354301A1 FR 7717755 A FR7717755 A FR 7717755A FR 7717755 A FR7717755 A FR 7717755A FR 2354301 A1 FR2354301 A1 FR 2354301A1
- Authority
- FR
- France
- Prior art keywords
- mixt
- ground
- oxidisable
- degrees
- iii
- 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.)
- Withdrawn
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
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Foamed ceramics, including foamed or cellular glass, are produced by preparing an aq. starting mixt. contg. (a) silicate-rich material, (I), (b) NaOH, (c) a difficulty oxidisable pore-forming agent (II) and (d) a strong oxidising agent (III). Quantity of (II) is at least sufficient to gasify (II) by reaction with (III). Mixt. of (I), (II) and (III) is dry- or wet-ground. Ground particles having low particle size are mixed with a conc. aq. NaOH soln. Aq. mixt. is kept for a long time, esp. 1-30 hrs. at a reaction temp. 80-110 degrees C, with simultaneous free water extn., until a solid prod. is formed. The dry solid prod. is further heated, e.g. to 200-310 degrees C, to remove main part of residual water. Dry prod. formed is ground to a finer particle size. A fraction of ground material, having uniform particle size, is heated in a refractory mould to 700-1100 degrees C in an oxidising atmos. The prods. are used as insulators.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7606611A SE405246B (en) | 1976-06-10 | 1976-06-10 | WAY TO PRODUCE FOAM CERAMICS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2354301A1 true FR2354301A1 (en) | 1978-01-06 |
Family
ID=20328197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7717755A Withdrawn FR2354301A1 (en) | 1976-06-10 | 1977-06-09 | Foamed ceramic prodn. - from mixt. of silicate materials, sodium hydroxide, difficultly oxidisable cpd. forming pores and strong oxidising agent |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS52152408A (en) |
| DE (1) | DE2725928A1 (en) |
| FR (1) | FR2354301A1 (en) |
| SE (1) | SE405246B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0292424A2 (en) * | 1987-04-16 | 1988-11-23 | Misag Ag | Process and apparatus for producing expanded articles |
| WO2016041899A1 (en) * | 2014-09-15 | 2016-03-24 | Glassolite Ltd. | Molding of a foamed glass product with an outer protective crust |
| US11976000B2 (en) | 2020-05-10 | 2024-05-07 | Valunor Ag | Expandable silica particles and methods for making and using the same |
-
1976
- 1976-06-10 SE SE7606611A patent/SE405246B/en unknown
-
1977
- 1977-06-08 DE DE19772725928 patent/DE2725928A1/en not_active Withdrawn
- 1977-06-09 FR FR7717755A patent/FR2354301A1/en not_active Withdrawn
- 1977-06-10 JP JP6802777A patent/JPS52152408A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0292424A2 (en) * | 1987-04-16 | 1988-11-23 | Misag Ag | Process and apparatus for producing expanded articles |
| EP0292424A3 (en) * | 1987-04-16 | 1989-03-22 | Misag Ag | Process and apparatus for producing expanded articles |
| WO2016041899A1 (en) * | 2014-09-15 | 2016-03-24 | Glassolite Ltd. | Molding of a foamed glass product with an outer protective crust |
| EA033664B1 (en) * | 2014-09-15 | 2019-11-14 | Pcfg As | Molding of a foamed glass product with an outer protective crust |
| US11976000B2 (en) | 2020-05-10 | 2024-05-07 | Valunor Ag | Expandable silica particles and methods for making and using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| SE405246B (en) | 1978-11-27 |
| SE7606611L (en) | 1977-11-11 |
| DE2725928A1 (en) | 1977-12-22 |
| JPS52152408A (en) | 1977-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |