ES377265A1 - Process of manufacturing refractory magnesia-chrome and chrome-magnesia bricks - Google Patents
Process of manufacturing refractory magnesia-chrome and chrome-magnesia bricksInfo
- Publication number
- ES377265A1 ES377265A1 ES377265A ES377265A ES377265A1 ES 377265 A1 ES377265 A1 ES 377265A1 ES 377265 A ES377265 A ES 377265A ES 377265 A ES377265 A ES 377265A ES 377265 A1 ES377265 A1 ES 377265A1
- Authority
- ES
- Spain
- Prior art keywords
- magnesia
- sintered
- chrome
- less
- grain size
- 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
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title abstract 9
- 239000000395 magnesium oxide Substances 0.000 title abstract 5
- 239000011449 brick Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 5
- 235000012245 magnesium oxide Nutrition 0.000 abstract 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 2
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- 239000001095 magnesium carbonate Substances 0.000 abstract 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 238000005266 casting Methods 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 150000002681 magnesium compounds Chemical class 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
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
- C04B35/42—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 chromites
-
- 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
-
- 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
- C04B35/12—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 chromium oxide
-
- 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
- C04B35/44—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 aluminates
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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Procedure for the manufacture of magnesite-chromium and chromium-magnesite refractory bricks, in which materials containing chromium oxide are mixed, especially chromite with a grain size of 0 to 6 mm maximum, preferably 4 mm as maximum, with fine-grained magnesite, possibly sintered magnesia, or other fine-grained magnesium compounds, natural or synthetic, that give periclase when calcined and with a grain size of less than 0.20 mm, preferably 0.12 mm at most which, based on the calcined state, contain less than 95%, preferably less than 93%, of MgO, and are sintered without melting, preferably after casting to form briquettes or bricks, at temperatures of at least 1,750º, suitably 1,850º at least, and then this sintered material, which has a content of 5 to 40%, especially 20 to 30%, of Cr2O3, is granulated and, eventually, after adding sintered magnesia, it is brick-shaped, characterized in that: a) for the manufacture of the sintered material, at least 20% and at most 80% of the materials containing chromium oxide, have a grain size of less than 0.12 mm; b) the sintered material has a silicic acid content of 2.5% at most, a lime content of 4% at most and c) a lime to silicic acid molar ratio of greater than 0.6 to 2.5 . (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT327469A AT290374B (en) | 1969-04-03 | 1969-04-03 | Process for the production of refractory chromium and chromium magnesite bricks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES377265A1 true ES377265A1 (en) | 1972-06-16 |
Family
ID=3548044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES377265A Expired ES377265A1 (en) | 1969-04-03 | 1970-03-07 | Process of manufacturing refractory magnesia-chrome and chrome-magnesia bricks |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT290374B (en) |
| BE (1) | BE748233A (en) |
| DE (1) | DE2011805B2 (en) |
| ES (1) | ES377265A1 (en) |
| FR (1) | FR2039083A5 (en) |
| GB (1) | GB1282206A (en) |
| IE (1) | IE34078B1 (en) |
| IL (1) | IL34110A (en) |
| NL (1) | NL7003444A (en) |
| SE (1) | SE376902B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT336478B (en) * | 1972-09-29 | 1977-05-10 | Veitscher Magnesitwerke Ag | METHOD OF MANUFACTURING FIRED REFRACTORY BRICKS |
| AT373229B (en) * | 1982-04-08 | 1983-12-27 | Veitscher Magnesitwerke Ag | METHOD FOR PRODUCING A FIREPROOF MAGNESIACHROME SINTER MATERIAL |
| FR2531423A1 (en) * | 1982-08-04 | 1984-02-10 | Norton Co | COMPOSITION OF REFRACTORY MORTAR |
| EP2918564A1 (en) * | 2014-03-13 | 2015-09-16 | LANXESS Deutschland GmbH | Refractory materials containing a mixed crystal with spinel structure |
-
1969
- 1969-04-03 AT AT327469A patent/AT290374B/en not_active IP Right Cessation
-
1970
- 1970-03-07 ES ES377265A patent/ES377265A1/en not_active Expired
- 1970-03-11 NL NL7003444A patent/NL7003444A/xx unknown
- 1970-03-12 DE DE19702011805 patent/DE2011805B2/en active Pending
- 1970-03-12 SE SE7003319A patent/SE376902B/xx unknown
- 1970-03-19 IL IL34110A patent/IL34110A/en unknown
- 1970-03-23 FR FR7010336A patent/FR2039083A5/fr not_active Expired
- 1970-03-31 BE BE748233D patent/BE748233A/en not_active IP Right Cessation
- 1970-04-01 IE IE398/70A patent/IE34078B1/en unknown
- 1970-04-01 GB GB05515/70A patent/GB1282206A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IE34078L (en) | 1970-10-03 |
| DE2011805B2 (en) | 1976-01-29 |
| IE34078B1 (en) | 1975-01-22 |
| IL34110A (en) | 1973-05-31 |
| IL34110A0 (en) | 1970-05-21 |
| NL7003444A (en) | 1970-10-06 |
| BE748233A (en) | 1970-08-31 |
| SE376902B (en) | 1975-06-16 |
| DE2011805A1 (en) | 1970-10-15 |
| FR2039083A5 (en) | 1971-01-08 |
| GB1282206A (en) | 1972-07-19 |
| AT290374B (en) | 1971-05-25 |
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