[특허]Process for producing activated carbon

Process for producing activated carbon 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C01B-031/12 C01B-031/10 C21B-013/08
출원번호	US-0422417 (1973-12-06)
우선권정보	JA-0123974 (1972-12-12)
발명자 / 주소	Arakawa Hideo (Tokyo JA) Hasebe Tatsuo (Tokyo JA) Sato Shigeru (Kashiwa JA)
출원인 / 주소	Japan Eng. Co., Ltd. (Tokyo JA 03) Nippon Iron Powder Co., Ltd. (Kashiwa JA 03)
인용정보	피인용 횟수 : 20 인용 특허 : 0

초록 ▼

High quality activated carbon is produced by charging a mixture of an organic material such as wood, anthracite coal, brown coal, coconut husk, and a material containing metal oxide, metal carbonate or metal hydroxide, such as iron ore and lime, into an internal heating rotary furnace, preferably, having an internal space with a length of 1 to 10 times the diameter thereof, through an end of the rotary furnace, blowing air or oxygen gas into the internal space through an opposite end thereof, burning the distilled gas from the organic material and carbon monoxide generated by the reaction of the organic material with the metal oxide, carbonate or hydroxide, and uniformly circulating the burnt gas in the internal space to maintain the internal space at the reduction temperature.

대표청구항 ▼

A process for producing activated carbon which comprises: a. charging an internal space of an internally heated rotary furnace, said furnace having a charge inlet at one end thereof, an opposed discharge outlet at the other end thereof and a ratio of length to diameter of from 1:1 to 10:1, with a mixture of an organic material capable of being carbonized at a temperature of 200°C or higher, and a material containing therein at least one metal compound capable of reacting with carbonized organic material at a temperature of at least 500°C to form activated carbon, said metal compound being selected from the group consisting of metal oxides, carbonates and hydroxides, through the inlet of said rotary furnace; b. rotating said rotary furnace to cause said mixture of said organic material and said metal compound-containing material to travel from the feed end to the opposite discharge end of said rotary furnace through a distillation and carbonization zone and an activation zone in said internal space of said rotary furnace; c. blowing air or oxygen gas into said internal space of said rotary furnace from and through said opposite discharge end thereof in a direction which is parallel to the longitudinal axis of said rotary furnace or inclined at an angle from said axis towards an inside periphery surface of said rotary furnace; d. heating said mixture in said distillation and carbonization zone at a temperature of at least 200°C to carbonize said organic material in said mixture and to generate from said organic material combustible distilled gas; e. heating the resulting mixture containing said carbonized material in contact with said metal compound in said activation zone at a temperature of at least 500°C to activate said carbonized material, to reduce said metal compound and to generate carbon monoXide which, together with said distilled gas serves as the sole fuel used to generate heat in said process; f. contacting said distilled gas and carbon monoxide with said blown air or oxygen at a temperature of at least 500°C to burn said distilled gas and carbon monoxide; g. whereby the burnt gas including said air or oxygen gas is uniformly circulated throughout said internal space of said rotary kiln by said blowing of said air or oxygen gas to provide the heat required by said heating steps (d) and (e).

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Process for producing activated carbon 원문보기

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Process for producing activated carbon 원문보기

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이 특허를 인용한 특허 (20)

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