GB737857A - Improvements relating to the preparation of calcium carbide - Google Patents
Improvements relating to the preparation of calcium carbideInfo
- Publication number
- GB737857A GB737857A GB35948/53A GB3594853A GB737857A GB 737857 A GB737857 A GB 737857A GB 35948/53 A GB35948/53 A GB 35948/53A GB 3594853 A GB3594853 A GB 3594853A GB 737857 A GB737857 A GB 737857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbide
- furnace
- carbon
- calcium oxide
- per cent
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/942—Calcium carbide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
In the shaft furnace production of calcium carbide from calcereous material containing calcium oxide as such or as hydroxide or carbonate and solid carbonaceous fuel consisting substantially of carbon, a ratio of the solid reactants, expressed as calcium oxide to carbon, of between 1 : 4 and 1 : 2 is employed. The high temperature required in the process is provided by an oxygen-containing blast which burns a portion of the fuel, resulting in the production of an inflammable gas which escapes through the top of the furnace and a layer of molten carbide in the lower part of the furnace which is discharged therefrom continuously or intermittently. Low exhaust gas temperatures of 80-200 DEG C. may be obtained. According to the example, using a charge consisting of a mixture of 80 kg. of coke and 55 kg. of limestone (CaO : C of about 2 : 5) and a blast consisting of 77 per cent of technical oxygen and 23 per cent of steam, a furnace temperature of 2650 DEG C. and an inflammable gas temperature of 180 DEG C. was obtained. The resultant carbide yielded 240 l. of acetylene per kg. of carbide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL737857X | 1952-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB737857A true GB737857A (en) | 1955-10-05 |
Family
ID=19820443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35948/53A Expired GB737857A (en) | 1952-12-30 | 1953-12-24 | Improvements relating to the preparation of calcium carbide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB737857A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082224A (en) * | 2016-08-05 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | The system and method for double shaft furnace production carbides that a kind of pyrolysis gas recycles |
-
1953
- 1953-12-24 GB GB35948/53A patent/GB737857A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082224A (en) * | 2016-08-05 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | The system and method for double shaft furnace production carbides that a kind of pyrolysis gas recycles |
| CN106082224B (en) * | 2016-08-05 | 2018-04-20 | 神雾科技集团股份有限公司 | A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles |
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