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Scalcium Carbide Gas Yield 305L/Kg Cac2 Calcium Carbide 25-50mm
| ITEM | INDEX | |||||
| Gas Yield 20°C 101.3 Kpa L/kg ≥ |
Size | Gas Yield | Size percentage | Ash,% | ||
| Top | A Grade | Accept Grade | ||||
| 80-120mm | 300 | 295 | 280 | ≥90 | ≤1 | |
| 50-80mm | 300 | 295 | 280 | ≥90 | ≤1 | |
| 25-50mm | 300 | 295 | 280 | ≥90 | ≤1 | |
| 15-25mm | 300 | 285 | 260 | ≥90 | ≤1 | |
| 7-15mm | 290 | 270 | 250 | ≥90 | ≤1 | |
| 4-7mm | 280 | 260 | 240 | ≥90 | ≤1 | |
| 2-4mm | 260 | 240 | 220 | ≥90 | ≤1 | |
| PH3 %(V/V) ≤ | 0.08 | |||||
| H2S %(V/V) ≤ | 0.1 | |||||
| Quality Standard | GB10665-2004 | |||||
Hot Sale Products Calcium Carbide Stone Seller in China 25-50mm
There are two methods for producing calcium carbide: aerobic thermal method and electrothermal method. Generally, calcium carbide is produced by electrothermal method, that is, quicklime and carbon-containing raw materials (coke, anthracite or petroleum coke) are melted in the calcium carbide furnace by electric arc high temperature melting reaction to generate calcium carbide. The main production process is: raw material processing; batching; adding the mixed material into the electric furnace through the inlet or pipeline at the top of the electric furnace, heating it to about 2000C in an open or closed electric furnace, and generating calcium carbide according to the following reaction: Ga0+3C→CaC2+CO. After the melted calcium carbide is taken out from the bottom of the furnace, it is cooled and crushed and packaged as a finished product. The carbon monoxide generated in the reaction is discharged in different ways depending on the type of calcium carbide furnace: in an open furnace, carbon monoxide burns on the material surface, and the flames generated are scattered outward along with the dust. In a semi-closed furnace, part of the carbon monoxide is extracted by the suction hood placed on the furnace, and the remaining part is still burning on the material surface; in a closed furnace, all carbon monoxide is extracted.
Common Questions about Calcium Carbide
1. What is the use of calcium carbide?
Calcium carbide can react with water to produce acetylene and calcium hydroxide. Calcium carbide can also be obtained from this compound by reacting with nitrogen at relatively high temperatures. Calcium carbide is also used for the desulfurization of iron.
2. What is the role of calcium carbide in a calcium carbide lamp?
In a calcium carbide lamp, calcium carbide plays an indispensable role. Water drops on the carbide produce acetylene gas, which burns and emits light. Early cars, motorcycles and bicycles still commonly used carbide lamps as headlights, but they were eventually replaced by electric lamps.
3. How is calcium carbide produced?
Industrially, calcium carbide is produced in an electric arc furnace with a mixture of lime and coke at a temperature of about 2200°C (3990°F). The high temperatures required for this reaction are technically impossible to achieve in conventional combustion, so the reaction is carried out in an electric arc furnace with graphite electrodes.








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