Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Hydrocarbons from Carbide (A) IV. Non-Catalytic Polymerization under Ordinary Pressure. Acetylene-Carbide System and General Remarks
Ryoji NegishiOsamu Kamiike
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1942 Volume 17 Issue 7 Pages 345-354


It has been shown that when acetylene is used as a carrier gas, the percentage of the total liquid products, based on the reacted carbide acetylene (or carbon), increases owing to the polymerization of the carrier gas itself, provided its concentration is sufficiently high. If the concentration is low, the effect of the introduced acetylene appears limited merely to the suppression of the formation of free acetylene.
An explanation for a higher content than in the reacted gas of methane in the effluent gas used for desorption has been given for the acetylene system.
The supplementary data in support and evidence for the reasonableness of the over-all mechanism of nascent acetylene polymerization, which may be written
have been given.
It has been indicated that the efficacy of the synthesis of hydrocarbon liquids directly from calcium carbide is higher than even the catalytic polymerization, so far reported in literature, of ordinary acetylene.

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