Apparatus for manufacturing carbon nanotube fiber

Patent metadata

Field	Value
Publication number	US-10273599-B2
Application number	US-201615526148-A
Country	US
Kind code	B2
Filing date	Jul 25, 2016
Priority date	Jul 24, 2015
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

Disclosed is an apparatus for manufacturing a carbon nanotube fiber.

First claim

The invention claimed is:

1. An apparatus for manufacturing a carbon nanotube fiber, comprising:
a cylindrical high-temperature reactor body having a reaction zone;
an inlet for feeding a spinning material and a carrier gas into the reaction zone of the body;
a heater for heating the reaction zone;
an outlet provided at a bottom of the body so as to discharge a carbon nanotube fiber;
a winder for collecting the discharged carbon nanotube fiber;
a guide provided between the outlet and the winder; and
a voltage supplier for applying a voltage to the guide,
wherein the voltage is applied to the discharged carbon nanotube fiber to remove impurities from the carbon nanotube fiber.

2. The apparatus of claim 1 , wherein the guide includes at least one selected from the group consisting of a copper electrode, a tungsten electrode, a stainless steel electrode, a gold electrode, and a silver electrode.

3. The apparatus of claim 1 , further comprising a gas separator provided between the outlet and the winder.

4. The apparatus of claim 3 , wherein the gas separator includes at least one selected from the group consisting of a water bath and a glove box.

5. The apparatus of claim 1 , wherein two or more guides are provided.

6. The apparatus of claim 5 , wherein at least two of the guides are connected to the voltage supplier.

7. The apparatus of claim 3 , wherein when three or more guides are provided, at least one of the guides is included in the gas separator.

8. The apparatus of claim 1 , wherein the voltage of the voltage supplier ranges from 1 to 20 V.

9. The apparatus of claim 1 , wherein the impurities include amorphous carbon.

10. The apparatus of claim 1 , wherein the inlet further includes a spinning material supply unit for supplying the spinning material and a carrier gas supply unit for supplying the carrier gas.

11. The apparatus of claim 1 , wherein the winder includes at least one selected from the group consisting of a spindle, a reel, a bobbin, a drum, and a conveyor.

12. The apparatus of claim 1 , wherein the inlet includes a spray nozzle for injecting the spinning material and a distribution plate for injecting the carrier gas.

13. The apparatus of claim 1 , wherein the heater is a heating furnace surrounding the reactor body so that the reaction zone is heated to 1,000 to 3,000° C.

14. The apparatus of claim 1 , wherein the spinning material is configured such that a catalyst precursor is dispersed in a liquid or gas carbon compound.

15. The apparatus of claim 14 , wherein the liquid or gas carbon compound includes at least one selected from the group consisting of methane, ethylene, acetylene, methyl acetylene, vinyl acetylene, ethanol, methanol, propanol, acetone, xylene, chloroform, ethyl acetate, diethylether, polyethylene glycol, ethyl formate, mesitylene, tetrahydrofuran (THF), dimethylformamide (DMF), dichloromethane, hexane, benzene, carbon tetrachloride, and pentane.

16. The apparatus of claim 14 , wherein the catalyst precursor includes at least one selected from the group consisting of metallocene including ferrocene, iron, nickel, cobalt, platinum, ruthenium, molybdenum, vanadium, and oxides thereof.

17. The apparatus of claim 14 , wherein the spinning material further includes a catalyst activator.

18. The apparatus of claim 14 , wherein the catalyst precursor is liquid in a liquid carbon compound, and is gas in a gas carbon compound.

19. The apparatus of claim 1 , wherein the carrier gas is a hydrocarbon gas, an inert gas, a reducing gas, or a mixed gas thereof.

20. The apparatus of claim 17 , wherein the catalyst activator is liquid in a liquid carbon compound, and is gas in a gas carbon compound.

Assignees

• Lg Chemical Ltd

Inventors

• Oh Eu-Gene
• Lee Young-Ho
• Kim Ji-Eun
• Kim Ju-Han
• Choe Yong-Jin

Classifications

• D01F11/16

  by physicochemical methods · CPC title

• D01F9/133 Primary

  Apparatus therefor · CPC title

• D01F9/1277

  Other organic compounds · CPC title

• D01F9/127 Primary

  by thermal decomposition of hydrocarbon gases or vapours {or other carbon-containing compounds in the form of gas or vapour, e.g. carbon monoxide, alcohols} · CPC title

• D01F9/12

  Carbon filaments; Apparatus specially adapted for the manufacture thereof · CPC title