Process for preparing fine carbon fibers in a gaseous phase reaction
AssigneeNikkiso Co., Ltd.
InventorKohei Arakawa
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Abstract
A process of preparing carbon fibers in a floating state by reacting a mixed gas consisted of a gas of organic metal compound or compounds, a carrier gas and desirably a gas of carbon compound or compounds at the elevated temperature of 600.degree. to 1300.degree. C. is disclosed, in which the fine carbon fibers having a diameter of 0.05 to 2 .mu.m, a length of 2 to 3000 .mu.m and an aspect ratio of 2 to 30,000 as well as a high degree of preferred orientation of carbon layers may be produced in a high yield and a high productivity.
Claims9
In a process for preparing fine carbon fibers in a gaseous phase reaction, the improvement consisting in that a gas mixture consisting of a gas of organic metal compound or compounds and a carrier gas is subjected to elevated temperatures, said organic metal compound at said elevated temperatures decomposing to form a metal catalyst which induces growth of carbon fibers in a floating state, and continuously recovering the carbon fibers.
A process for preparing fine carbon fibers in a gaseous phase reaction, characterized in that a gas mixture, consisting of a gas of organic metal compound or compounds, a gas of carbon compound and a carrier gas, is subjected to elevated temperatures, said organic metal compound decomposing when subjected to said elevated temperatures to form a catalyst which induces growth of carbon fibers in a floating state, and continuously recovering the carbon fibers.
Dependencies are inferred from the claim text.