GB314819A - Improvements in or relating to the decomposition of calcium carbonate and to the manufacture of calcium carbide - Google Patents
Improvements in or relating to the decomposition of calcium carbonate and to the manufacture of calcium carbideInfo
- Publication number
- GB314819A GB314819A GB35324/27A GB3532427A GB314819A GB 314819 A GB314819 A GB 314819A GB 35324/27 A GB35324/27 A GB 35324/27A GB 3532427 A GB3532427 A GB 3532427A GB 314819 A GB314819 A GB 314819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric furnace
- admitted
- calcium
- retort
- pipe
- 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
314,819. Patart, G., and Nielsen, H. Dec. 30, 1927. Calcium carbide.-In forming calcium carbide by decomposing calcium carbonate admixed with carbonaceous materials in a hot stream of gas and passing the resulting mixture of calcium oxide and carbon into an electric furnace, the stream of gas contains less carbon dioxide than is present in combustion gases whereby calcium carbonate may be decomposed at a lower temperature than usual (below 700‹ C.). Carbonaceous material such as bituminous or brown coal, and chalk or limestone are fed from hoppers A, B to a rotary mixer C, and by a screw-conveyer d to a rotary inclined retort D from which the mixture falls through a combustion chamber E into an electric furnace F. A controlled volume of air is admitted to the chamber E through a pipe G together with some of the carbon monoxide evolved from the electric furnace and admitted by a pipe f and some of the gases drawn from the retort D by a fan J and stripped by passage through a seal h and a condensing plant and admitted through a seal k<1> and a pipe k<3>. The temperature in the retort D may be varied to drive off more or less of the volatile matters, and the distillation may be carried out as described in Specifications 276,407, 287,037, and 287,381, [all in Class 55 (i), Coking &c.], to obtain a coke free from graphitic carbon in the mixture which passes into the electric furnace.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB35324/27A GB314819A (en) | 1927-12-30 | 1927-12-30 | Improvements in or relating to the decomposition of calcium carbonate and to the manufacture of calcium carbide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB35324/27A GB314819A (en) | 1927-12-30 | 1927-12-30 | Improvements in or relating to the decomposition of calcium carbonate and to the manufacture of calcium carbide |
Publications (1)
Publication Number | Publication Date |
---|---|
GB314819A true GB314819A (en) | 1929-07-01 |
Family
ID=10376428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35324/27A Expired GB314819A (en) | 1927-12-30 | 1927-12-30 | Improvements in or relating to the decomposition of calcium carbonate and to the manufacture of calcium carbide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB314819A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126570A (en) * | 1982-09-07 | 1984-03-28 | Skf Steel Eng Ab | Method of manufacturing calcium carbide from powdered lime/limestone |
CN104477916A (en) * | 2014-10-23 | 2015-04-01 | 河南省德耀节能科技有限公司 | Calcium carbide production process and device |
-
1927
- 1927-12-30 GB GB35324/27A patent/GB314819A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126570A (en) * | 1982-09-07 | 1984-03-28 | Skf Steel Eng Ab | Method of manufacturing calcium carbide from powdered lime/limestone |
CN104477916A (en) * | 2014-10-23 | 2015-04-01 | 河南省德耀节能科技有限公司 | Calcium carbide production process and device |
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