GB489297A - Method and apparatus for causing slags, which do not swell readily, to solidify in a highly porous condition - Google Patents
Method and apparatus for causing slags, which do not swell readily, to solidify in a highly porous conditionInfo
- Publication number
- GB489297A GB489297A GB1994/37A GB199437A GB489297A GB 489297 A GB489297 A GB 489297A GB 1994/37 A GB1994/37 A GB 1994/37A GB 199437 A GB199437 A GB 199437A GB 489297 A GB489297 A GB 489297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gases
- slag
- saturated
- blowing
- frothing
- 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
- 239000002893 slag Substances 0.000 title abstract 6
- 239000007789 gas Substances 0.000 abstract 8
- 238000007664 blowing Methods 0.000 abstract 3
- 229920006395 saturated elastomer Polymers 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
Slag is obtained in a porous or cellular condition by blowing gases through the slag whilst maintaining it at a temperature just above the melting point until it is saturated and subsequently agitating or otherwise treating it to release the absorbed gases. The frothing operation is facilitated by carrying out the blowing operation at a higher pressure than that which prevails during the subsequent frothing operation, which is preferably carried out under reduced pressure, and by heating the slag saturated with gases before the frothing operation to the degrees which it can bear without releasing dissolved gases, for example by the addition to it of slag direct from the furnace. Gases which may be used for the blowing operation are hot air, blast furnace gases, nitrogen, carbon dioxide or carbon monoxide. Specifications 344,309 and 361,139 are referred to. According to the Specification as open to inspection under Sect. 91 the slag may be saturated with gases by exposing it in thin layers to the gases. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE489297X | 1936-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489297A true GB489297A (en) | 1938-07-22 |
Family
ID=6543933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1994/37A Expired GB489297A (en) | 1936-01-22 | 1937-01-22 | Method and apparatus for causing slags, which do not swell readily, to solidify in a highly porous condition |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB489297A (en) |
-
1937
- 1937-01-22 GB GB1994/37A patent/GB489297A/en not_active Expired
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