Patent EP0136497A2 successfully refreshed from Google Patents.
EP0136497A2
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EP
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A process for preparing fine carbon fibers in a gaseous phase reaction
Assignee: Nikkiso Co Ltd
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Filing: 1984-08-16
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Granted: —
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Expires: 2004-08-16
Abstract
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 to 1300°C is disclosed, in which the fine carbon fibers having a diameter of 0.05 to 2 µm, a length of 2 to 3000 µm 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.
Inventors
- 👤 Kohei Arakawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 10:11
CPC Classifications
D; D01; D01F; D01F9/00; D01F9/08; D01F9/12; B; B82; B82Y; B82Y30/00; D01F9/127; D01F9/1271; D01F9/1272; D01F9/1273; D01F9/1275; D01F9/1276; D01F9/1278
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
A process for preparing fine carbon fibers in a gaseous phase reaction, characterized in that a mixed gas consisting of a gas of organic metal compound or compounds, and a carrier gas is reacted at the elevated temperature.
Claim 2
Dependent Claim
38 words
A process for preparing fine carbon fibers in a gaseous phase reaction, characterized in that a mixed gas consisting of a gas of organic metal compound or compounds, and a carrier gas is reacted at the elevated temperature.
Claim 3
Dependent Claim
43 words
A process for preparing fine carbon fibers in a gaseous phase reaction, characterized in that a mixed gas consisting of a gas of organic metal compound or compounds, a gas of carbon compound and a carrier gas is reacted at the elevated temperature.
Claim 4
Dependent Claim
43 words
A process for preparing fine carbon fibers in a gaseous phase reaction, characterized in that a mixed gas consisting of a gas of organic metal compound or compounds, a gas of carbon compound and a carrier gas is reacted at the elevated temperature.
Claim 5
Dependent Claim
18 words
A process according to claim 1 or 2, wherein the organic metal compound contains Fe, Co and/or Ni.
Claim 6
Dependent Claim
20 words
A process according to claim 1 or 2, wherein the organic metal compound consists only of carbon, hydrogen and iron.
Claim 7
Dependent Claim
25 words
A process according to claim 1 or 2, wherein the carrier gas is a mixed gas containing more than 60 % of H 2 gas.
Claim 8
Dependent Claim
25 words
'A process according to claim 1 or 2, wherein the carrier gas is H 2 gas containing 1 to 5 % of H 2 S.
Claim 9
Dependent Claim
38 words
A process according to claim 1 or 2, wherein the carrier gas is H 2 gas containing 3 to 20 % of other gas selected from He, Ar, Kr, Ne, N 2 , C0 2 and the like.
Claim 10
Dependent Claim
51 words
A process according to claim 2, wherein a solution of the carbon compound having dissolved the organic metal compound or compounds therein is vaporized to form a mixed gas of the carbon compound with the organic metal compound or compounds having the same composition as said solution on the elemental basis.
Claim 11
Dependent Claim
22 words
A process according to claim 1 or 2, wherein the mixed gas is reacted at the temperature of 600 to 1300 °C.
References Cited (Backward Citations)
No citation records indexed.
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