KR930009919A - 활성탄소 포말들로 부터 큰 비표면을 갖는 금속탄화물들을 제조하기 위한 방법 - Google Patents
활성탄소 포말들로 부터 큰 비표면을 갖는 금속탄화물들을 제조하기 위한 방법 Download PDFInfo
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- 239000006260 foam Substances 0.000 title claims abstract 21
- 229910052751 metal Inorganic materials 0.000 title claims abstract 18
- 239000002184 metal Substances 0.000 title claims abstract 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract 7
- 150000001247 metal acetylides Chemical class 0.000 title claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 2
- 239000003054 catalyst Substances 0.000 claims abstract 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 15
- 238000000034 method Methods 0.000 claims abstract 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract 6
- 239000001569 carbon dioxide Substances 0.000 claims abstract 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract 6
- 230000004913 activation Effects 0.000 claims abstract 4
- 239000003039 volatile agent Substances 0.000 claims abstract 3
- 239000013081 microcrystal Substances 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims 5
- 229910052710 silicon Inorganic materials 0.000 claims 5
- 239000010703 silicon Substances 0.000 claims 5
- 239000007789 gas Substances 0.000 claims 4
- 230000003213 activating effect Effects 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 3
- 229910001385 heavy metal Inorganic materials 0.000 claims 3
- 239000011261 inert gas Substances 0.000 claims 3
- 150000002736 metal compounds Chemical class 0.000 claims 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 230000002000 scavenging effect Effects 0.000 claims 2
- 229920005830 Polyurethane Foam Polymers 0.000 claims 1
- 229910004298 SiO 2 Inorganic materials 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 1
- 229910052768 actinide Inorganic materials 0.000 claims 1
- 150000001255 actinides Chemical class 0.000 claims 1
- 229910052786 argon Inorganic materials 0.000 claims 1
- 238000005255 carburizing Methods 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 239000011496 polyurethane foam Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 claims 1
- 229910052702 rhenium Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052723 transition metal Inorganic materials 0.000 claims 1
- 150000003624 transition metals Chemical class 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract 1
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Abstract
본 발명은 화학이나 석유화학 산업 또는 소음기에서 촉매 또는 촉매 지지체로서 사용되는 탄화규소 또는 금속탄화물 포말에 관한 것이고 또한 상기 포말의 생산방법에 관한 것이다. 상기 포말은 50 내지 500 마이크로미터의 모서리 길이를 갖는 상호연결되는 바구니들의 삼차원 조직망의 형태로되고 밀도는 0.03 내지 0.1g/㎤, BET 표면은 20 내지 100㎡/g으로 된다. 탄화물 포말은 0.1 중량% 미만의 잔류금속을 포함하고, 탄화물의 미소결정들의 크기는 40 내지 400옹스트롬으로 된다. 상기 생산방법은 탄소 포말을 생성하는 단계, 이산화탄소를 사용하는 활성화 처리에 의해 그 비표면을 증가시키는 단계, 및 상기와 같이 얻어진 포말을 얻고자하는 금속의 휘발성 화합물과 접촉시키는 단계로 구성된다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (19)
- 반응개스들이 용이하게 도달될 수 있도록 하기 위해 큰 개방 거시기공률을 갖는, 특히 촉매 또는 촉매 지지체로서 사용되게 되는 중금속 또는 규소의, 탄화물 포말에 있어서, 상기 탄화물 포말의 거시기공률이 상호연결되는 바구니들의 삼차원 조직망의 형태로 되고 상기 조직망의 모서리 길이는 50 내지 500 마이크로미터로 되며, 밀도는 0.03 내지 0.1g/㎤이고, BET 표면은 20 내지 100㎡/g이며, 상기 탄화물 포말은 0.1 중량 %미만의 잔류금속만을 포함하고, 탄화물 미소결정들의 크기는 40 내지 400 옹스트롬으로 되는 것을 특징으로 하는 탄화물 포말.
- 제1항에 있어서, 활성화된 탄소 포말로부터 중금속 또는 규소의 탄하물 포말이 제조되는 경우에, 탄화물 포말의 메소기공들 평균직경이 활성화된 탄소 포말의 메소기공들이 평균직경의 세배가 되며, 활성화 처리에 의해 개발되는 미시기공률이 거의 완전히 사라지게 되는 것을 특징으로 하는 탄화물 포말.
- 모노리틱 부분 형태의 큰 비표면을 갖고 특히 촉매 또는 촉매 지지체로서 사용되게되며 반응개스들의 용이한 도달을 위해 큰 개방 거시기공률을 갖게되는, 중금속들 또는 규소의, 탄화물의 제조방법에 있어서, 얻고자 하는 촉매 또는 촉매 지지체의 크기들 및 형상을 갖는 부분을 탄소 포말로부터 생성시키는 단계, 상기 부분을 이산화탄소 CO2에 의한 제어된 산화에 노출시킴으로써 상기 부분의 표면을 활성화시키는 단계, 및 상기 활성화된 부분을 1000 내지 1400℃의 온도에서 2 내지 6시간동안 탄화물을 제조하고자 하는 금속의 휘발성 화합물의 작용에 노출시켜 화합물의 금속함량이 감소되도록 하고 금속의 침탄되도록 하는 단계로 구성되는 것을 특징으로 하는 방법.
- 제3항에 있어서, 탄소 포말이 0.03 내지 0.1g/㎤의 밀도를 갖는 것을 특징으로 하는 방법.
- 제3항 또는 제4항에 있어서, 이산화탄소에 의한 포말의 활성화가 800 내지 1000℃의 온도에서 1 내지 4시간동안 진행되게 되는 것을 특징으로 하는 방법.
- 제5항에 있어서, 이산화탄소에 의한 포말의 활성화가 고정된 충전로내에서 수행되게 되는 것을 특징으로 하는 방법.
- 제5항에 있어서, 이산화탄소에 의한 포말의 활성화가 패시지 노내에서 수행되게 되는 것을 특징으로 하는 방법.
- 반응개스들의 도달을 용이하게 하기 위해 큰 개방 거시기공률을 가지면서 특히 촉매 또는 촉매지지체로서 사용되는 모노리틱 부분 형태의 큰 비표면을 갖는, 중금속들 또는 규소의, 탄화물들을 제조하기 위한 방법에 있어서, 강성 리아크릴로니트릴 패널로부터 얻고자 하는 촉매 또는 촉매 지지체의 크기들 및 형상을 갖는 부분을 생성하는 단계, 상기 개방된 거시기공률을 창출시키기 위해 상기 부분내에 소직경의 밀착되는 구멍들을 형성하는 단계, 700℃ 내지 900℃의 온도에서 그리고 중성대기하에서 1 내지 2시간동안 상기 부분을 열분해시키는 단계, 및 상기 부분을 1000 내지 1400℃의 온도에서 2 내지 6시간동안 탄화물을 제조하고자 하는 금속의 휘발성 화합물의 작용에 노출시켜 화합물의 금속함량이 감소되고 금속이 침탄되도록 하는 단계로 구성되는 것을 특징으로 하는 방법.
- 제3항 내지 7항중의 어느 한 항에 있어서, 포말을 고온 소다수용액으로 수분동안 세정시키는 단계, 유수로 수세시키고 건조시키는 단계, 상기 포말을 수지에 함침시키고 함침된 포말을 배수시켜 ㎤ 포말당 0.03 내지 0.1g의 수지가 남도록 하는 단계, 함침된 포말을 1200℃로 열분해시키는 단계를 포함하는 연속적인 단계들에 따라 생성되는 폴리우레탄 포말로부터 상기 탄소 포말이 생성되게 되는 것을 특징으로 하는 방법.
- 제3항 내지 9항중의 어느 한 항에 있어서, 침탄처리를 하기 직전에 탄소 포말이 1000 내지 1200℃의 온도에서 그리고 초기진공, 및 아르곤과 같은 불활성 개스 소기하에서 0.5 내지 2시간동안 탈개스화되게 되는 것을 특징으로 하는 방법.
- 제3항 내지 10항중의 어느 한 항에 있어서, 상기 금속이 (원소분류 4, 5, 6열들의 3b, 4b, 5b, 6b, 7b, 8족들의)전이금속들, 희토금속들 및 악티늄족들로 형성되는 군에 속하는 것을 특징으로 하는 방법.
- 제11항에 있어서, 상기 금속이 Mo, W, Re, V, Nb, Ta, Ti, Cr, Ni로 형성되는 군에 속하는 것을 특징으로 하는 방법.
- 제3항 내지 12항중 어느 한 항에 있어서, 금속의 휘발성 혼합물의 작용에 활성화된 부분을 노출시키는 단계가, 상기 활성화된 부분을 금속의 휘발성 화합물의 베드내에 침지시키거나 상기 베드상에 위치시킴으로써 수행되게 되는 것을 특징으로 하는 방법.
- 모노리틱 부분 형태의 큰 비표면을 갖고 특히 촉매 또는 촉매 지지체로서 사용되게 되며 반응개스들의 용이한 도달을 위해 큰 개방 거시기공률을 갖는 탄화규소를 제조하기 위한 방법에 있어서, 얻고자 하는 촉매 지지체 또는 촉매의 크기들 및 형상을 갖는 탄소 포말 부분을 생성시키는 단계, 상기 탄소 포말 부분을 이산화탄소에 의한 제어되는 산화에 노출시켜 상기 부분의 표면을 활성화시키는 단계, 및 상기 활성화된 부분을 특정 온도에서 그리고 특정 시간동안 규소 아산화물 SiO의 작용에 노출시켜 상기 아산화물이 탄화규소로 완전히 변환되도록 하는 단계로 구성되는 것을 특징으로 하는 방법.
- 제14항에 있어서, 활성화된 탄소 포말 부분을 SiO의 작용에 노출시키는 상기 단계가 실리카 및 규소와 혼합물로 형성되는 베드내에 상기 활성화된 탄소 포말을 침지시키거나 또는 상기 베드상에 위치시킴에 의해 수행되게 되는 것을 특징으로 방법.
- 제13항 또는 15항에 따른, 모노리틱 부분형태의 큰 비표면을 갖는 금속화물 또는 탄화규소를 제조하기 위한 방법에 있어서, 활성화된 탄소 포말 부분을 금속화합물 또는 SiO의 작용에 노출시키는 단계가 고정된 충전로내에서 수행되게 되는 것을 특징으로 하는 방법.
- 제13항 또는 15항에 따른, 모노리틱 부분형태의 큰 비표면을 갖는 금속탄화물 또는 탄화규소를 제조하기 위한 방법에 있어서, 활성화된 탄소 포말 부분을 금속화합물 또는 SiO의 작용에 노출시키는 단계가 패시지 노내에서 수행되게 되는 것을 특징으로 하는 방법.
- 제3항 내지 제17항 중의 어느 한 항에 따른, 모노리틱 부분형태의 큰 비표면을 갖는 금속탄화물 또는 탄화규소를 제조하기 위한 방법에 있어서, 활성화된 탄소 포말 부분을 금속화합물 또는 SiO의 작용에 노출시키는 단계가 불활성개스 소기하에서 수행되고, 불활성개스유속을 증가시킴에 의해 부분적인 CO압력이 2hPa미만으로 유지되게 되는 것을 특징으로 하는 방법.
- ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR919114607A FR2684092B1 (fr) | 1991-11-21 | 1991-11-21 | Procede de preparation de carbures metalliques a grande surface specifique a partir de mousses de carbone activees. |
| FR9114607 | 1991-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930009919A true KR930009919A (ko) | 1993-06-21 |
| KR960014906B1 KR960014906B1 (ko) | 1996-10-21 |
Family
ID=9419366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920022009A KR960014906B1 (ko) | 1991-11-21 | 1992-11-21 | 비표면적이 큰 금속 탄화물 포옴 및 이의 제조방법 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6217841B1 (ko) |
| EP (1) | EP0543752B1 (ko) |
| JP (1) | JP2564234B2 (ko) |
| KR (1) | KR960014906B1 (ko) |
| AU (1) | AU655086B2 (ko) |
| BR (1) | BR9204503A (ko) |
| DE (1) | DE69208329T2 (ko) |
| DK (1) | DK0543752T3 (ko) |
| ES (1) | ES2083716T3 (ko) |
| FI (1) | FI925292A (ko) |
| FR (1) | FR2684092B1 (ko) |
| NO (1) | NO924432L (ko) |
| ZA (1) | ZA928947B (ko) |
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-
1991
- 1991-11-21 FR FR919114607A patent/FR2684092B1/fr not_active Expired - Fee Related
-
1992
- 1992-11-17 NO NO92924432A patent/NO924432L/no unknown
- 1992-11-19 DE DE69208329T patent/DE69208329T2/de not_active Expired - Fee Related
- 1992-11-19 EP EP92420429A patent/EP0543752B1/fr not_active Expired - Lifetime
- 1992-11-19 ES ES92420429T patent/ES2083716T3/es not_active Expired - Lifetime
- 1992-11-19 DK DK92420429.0T patent/DK0543752T3/da active
- 1992-11-19 ZA ZA928947A patent/ZA928947B/xx unknown
- 1992-11-20 FI FI925292A patent/FI925292A/fi not_active Application Discontinuation
- 1992-11-20 BR BR9204503A patent/BR9204503A/pt not_active IP Right Cessation
- 1992-11-20 JP JP4312176A patent/JP2564234B2/ja not_active Expired - Fee Related
- 1992-11-20 AU AU28531/92A patent/AU655086B2/en not_active Ceased
- 1992-11-21 KR KR1019920022009A patent/KR960014906B1/ko not_active IP Right Cessation
-
1994
- 1994-07-20 US US08/278,107 patent/US6217841B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05254816A (ja) | 1993-10-05 |
| BR9204503A (pt) | 1994-02-22 |
| FI925292A0 (fi) | 1992-11-20 |
| DK0543752T3 (da) | 1996-03-11 |
| FI925292A (fi) | 1993-05-22 |
| ES2083716T3 (es) | 1996-04-16 |
| EP0543752A1 (fr) | 1993-05-26 |
| FR2684092B1 (fr) | 1994-03-04 |
| AU655086B2 (en) | 1994-12-01 |
| NO924432D0 (no) | 1992-11-17 |
| KR960014906B1 (ko) | 1996-10-21 |
| JP2564234B2 (ja) | 1996-12-18 |
| EP0543752B1 (fr) | 1996-02-14 |
| ZA928947B (en) | 1993-05-17 |
| NO924432L (no) | 1993-05-24 |
| DE69208329T2 (de) | 1996-07-04 |
| US6217841B1 (en) | 2001-04-17 |
| FR2684092A1 (fr) | 1993-05-28 |
| AU2853192A (en) | 1993-05-27 |
| DE69208329D1 (de) | 1996-03-28 |
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