Calcium carbide with diversified raw materials and preparation method of calcium carbide
A calcium carbide and raw material technology, applied in the direction of carbide, calcium carbide, etc., can solve the problems of calcium carbide raw materials, such as diversification and cost reduction, poor chemical reactivity, difficult melting reaction, etc., to achieve good bonding effect, lower melting point, and lower reaction temperature Effect
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[0036] Weigh 20kg lignite, make coke after washing, crush it to below 2cm through a jaw crusher, grind it through a ball mill, and sieve it with a 20-mesh sieve for later use; weigh 20kg quicklime, pass it through a 20-mesh sieve after grinding Sieve for standby; Weigh 0.2kg fluorite, crush it to below 2cm through a jaw crusher, grind it through a ball mill, and sieve it with a 20-mesh sieve for standby after grinding; Weigh 15g dodecyl carboxymethyl cellulose as viscous Mixture spare.
[0037] Add sieved lignite, quicklime, fluorite and binder into the kneader, fully knead and stir, and then granulate through a 45MPa ball press machine. The diameter of the abrasive tool is 30mm, and the granulation is spherical or hemispherical. , has a certain strength. Place it in a drying shed to dry for a week, dry it in an oven at 150°C for 2 hours, and then smelt it in an electric arc furnace at 1900°C for 30 minutes, take it out, and cool it to obtain a calcium carbide product with a ...
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