Technical Gases

One of the main applications of Calcium Carbide is the production of acetylene gas.

 

CaC2(s) + 2H2O(l) -> C2H2(g) + Ca(OH)2(s)

 

Besides its use as a major chemical building block, acetylene is the hottest burning standard welding gas and consumes the least amount of oxygen for complete combustion.

 

C2H2(g) + 2,5O2(g) -> 2CO2(g) + H2O(g)

 

The combustion produces a flame temperature of over 3300°C and releases 11.8 kJ/g.

Alzchem provides Calcium Carbide in the right granulation and with low impurities. A sophisticated supply chain with exchangeable containers transported on rail, truck or ship ensures highest delivery safety.

 

Andreas Senftl

Andreas Senftl

T +49 8621 86-2837

News

CalciPro®, our cored wire based on Calcium Carbide, is well established in the European market. Now, also Russian steel producers show great interest in our product. Application tests by one of Russia's leading steel producers were successful, further trials in yet additional Russian steel plants are currently scheduled. CalciPro® is used for Calcium treatment of molten steel. It modifies nonmetallic inclusions to assure good castability and to optimize the mechanical properties of the...
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CalciPro® cored wire is an established Calcium-treatment technology for inclusion modification to improve castability and to optimize material properties in commercial steel plants. Calcium Carbide is well known as an effective desulfurization agent for hot metal in modern economic steel production. In addition, Calcium Carbide can also be used for liquid steel desulfurization. In production plants where no lance for powder injection is available at the ladle treatment station, CalciPro®...
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Acetylene (C2H2) is the world's most efficient and hottest burning standard welding gas. For producing acetylene, the reaction of calcium carbide (CaC2) with water (H2O) is used, whereas acetylene and lime milk (Ca(OH)2) is generated.   CaC2 + 2 H2O --> C2H2 + Ca(OH)2   For this simple and proven process, AlzChem's calcium carbide is used for more than a century. Calcium carbide is of strategic value for AlzChem, as it is the basis of the NCN-chain. Originating...
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In the global market the requirements for steel quality are increasing continuously. One of the most important parameters is the cleanliness, which describes the number and size of nonmetallic inclusions in the material. The cored wire CalciPro®, based on Calcium Carbide, is applied in secondary metallurgy to improve the cleanliness. It provides calcium, which modifies the existing oxide and sulfide inclusions in the steel melt and improves castability. The formation, control and effect of...
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