JPS5482400A - Production of calcium carbide - Google Patents
Production of calcium carbideInfo
- Publication number
- JPS5482400A JPS5482400A JP15028177A JP15028177A JPS5482400A JP S5482400 A JPS5482400 A JP S5482400A JP 15028177 A JP15028177 A JP 15028177A JP 15028177 A JP15028177 A JP 15028177A JP S5482400 A JPS5482400 A JP S5482400A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- air
- raw material
- heated
- calcium carbide
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
PURPOSE: To produce calcium carbide using combustion gas of heavy oil, coal, etc. in place of electric power by heating blended raw material charged from the top of a furnace with hot gas rising from the lower combustion chamber; heat exchanging part of the hot gas for air outside the furnace; and using the resulting hot air as air for combustion.
CONSTITUTION: Calcareous raw material and carbon material such as coke are mixed in the molar ratio of C/CaO=1W6. The blended raw material is charged from the top of a vertical type furnace and heated to around 700°C with hot gas formed by burning heavy oil, coal, etc. with air heated to 800W1600°C in the lower combustion chamber of the furnace. The heated raw material is then rapidly heated to 1600W2000°C, the most part of Ca formed is recovered, and calcium carbide is partially formed. Thereafter, the raw material heated to around 2000°C is converted into calcium carbide at the lower part of the furnace and taken out from the bottom. On the other hand, part of the hot gas in the combustion chamber is taken out from the furnace, and air preheated to 800W1600°C is introduced into the chamber as air for combustion.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15028177A JPS5482400A (en) | 1977-12-14 | 1977-12-14 | Production of calcium carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15028177A JPS5482400A (en) | 1977-12-14 | 1977-12-14 | Production of calcium carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5482400A true JPS5482400A (en) | 1979-06-30 |
Family
ID=15493533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15028177A Pending JPS5482400A (en) | 1977-12-14 | 1977-12-14 | Production of calcium carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5482400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366531C (en) * | 2006-07-05 | 2008-02-06 | 徐建明 | Process for direct smelting of calcium carbide in converter by using gangue or carbide slag or limestone |
| CN100368289C (en) * | 2006-07-05 | 2008-02-13 | 徐建明 | Process for direct smelting of calcium carbide in converter by using liquid dross slag or steel slag |
-
1977
- 1977-12-14 JP JP15028177A patent/JPS5482400A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366531C (en) * | 2006-07-05 | 2008-02-06 | 徐建明 | Process for direct smelting of calcium carbide in converter by using gangue or carbide slag or limestone |
| CN100368289C (en) * | 2006-07-05 | 2008-02-13 | 徐建明 | Process for direct smelting of calcium carbide in converter by using liquid dross slag or steel slag |
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