NDLI: Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Content Provider	Springer Nature Link
Author	Shi, Dejun Qiao, Ke Yan, Zifeng
Copyright Year	2011
Abstract	Calcium carbide was successfully synthesized by carbothermal reduction of lime with coke at 1973 K for 1.5 h. The effect of potassium carbonate as additive on the composition and morphology of the product was investigated using X-ray diffraction and scanning electron microscope. Addition of potassium carbonate increased the yield of calcium carbide. The sample in the presence of potassium carbonate generated acetylene gas of 168.3 L/kg, which was 10% higher than that in the absence of potassium carbonate. This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbide. A possible mechanism of the above effects was that the additive, which was melted at the reduction temperature, dissolved CaO and so promoted the contact between CaO and carbon, which was essential for the solid-solid reaction to form calcium carbide.
Starting Page	372
Ending Page	375
Page Count	4
File Format	PDF
ISSN	20950179
Journal	Frontiers of Chemical Engineering in China
Volume Number	5
Issue Number	3
e-ISSN	16737474
Language	English
Publisher	SP Higher Education Press
Publisher Date	2011-06-10
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	calcium carbide synthesis catalysis Industrial Chemistry/Chemical Engineering Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering

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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature