Production of calcium carbide

Details Production of calcium carbide Production of calcium carbide

C - Chemistry, Metallurgy

01

B

23/57

C01B 31/32 (2006.01)

Patent

CA 1156425

PRODUCTION OF CALCIUM CARBIDE ABSTRACT OF THE DISCLOSURE: The invention relates to a process for the electro- thermal production of calcium carbide from lime and a carbon carrier. To this end, the invention provides for at least 40 % of the total carbon component to be used in the form of a carbon carrier consisting of anthracite, petroleum coke and/or lean coal, the carbon carrier with an initial content of volatile contituents of more than 5.0 % having been subjected to thermal pretreatment at increased temperature for as long as necessary to establish a residual content of volatile constituents of less than 5.0 %, and having been separated into a fraction consisting of particles with a size of 3 to 10 mm and into a fraction consisting of particles with a size of more than 10 to 25 mm. The small particle fraction is introduced into a central region inside the furnace and the large particle fraction is introduced into a peripheral region of the burden surface area inside the furnace.

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