KR920016138A - 혼합 전이금속 산화물 촉매를 사용하는 일산화탄소의 전환방법 - Google Patents

혼합 전이금속 산화물 촉매를 사용하는 일산화탄소의 전환방법 Download PDF

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KR920016138A
KR920016138A KR1019920002266A KR920002266A KR920016138A KR 920016138 A KR920016138 A KR 920016138A KR 1019920002266 A KR1019920002266 A KR 1019920002266A KR 920002266 A KR920002266 A KR 920002266A KR 920016138 A KR920016138 A KR 920016138A
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metal oxide
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엘. 아우구스틴 로버트
타니엘얀 세트락
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에이. 스테펜 로버츠
필립모리스 프러덕츠 인코오포레이티드
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Abstract

내용 없음

Description

혼합 전이금속 산화물 촉매를 사용하는 일산화탄소의 전환방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 층상 혼합 산화물 촉매의 한 구현예에 있어서 온도에 대한 CO산화의 정도를 나타낸 그라프이고, 제2도는 본 발명의 층상 혼합 산화물 촉매의 다른 구현예에 있어서 온도에 대한 CO 산화의 정도를 나타낸 그라프이다.

Claims (29)

  1. 복수개의 금속산화물층으로 되어 있되 이 금속산화물은 티탄, 크롬, 철, 코발트, 니켈, 구리, 아연, 몰리브텐, 텅스텐 또는 주석산화물인 것을 특징으로 하는 일산화탄소 산화용 층상 금속산화물 촉매.
  2. 제1항에 있어서, 촉매가 2개의 금속산화물층으로 되고 제1금속산화물에 대한 제2금속산화물의 중량비가 1:50 내지 1:4인것을 특징으로 하는 촉매.
  3. 제1항에 있어서, 촉매가 2개의 금속산화물층으로 되고, 제1금속 산화물에 대한 제2금속산화물의 중량비가 2:50 내지 1:10인 것을 특징으로 하는 촉매.
  4. 제2항 또는 제3항에 있어서, 제1금속산화물이 코발트(Ⅱ,Ⅲ)산화물이고, 제2금속산화물이 주석산화물인 것을 특징으로 하는 촉매.
  5. 제1항 내지 제4항중 어느 한 항에 있어서, 촉매가 1개 이상의 귀금속으로 되고, 귀금속 또는 그의 혼합물이 외부 금속산화물층에 층을 형성하는 것을 특징으로 하는 촉매.
  6. 제5항에 있어서, 금속산화물에 대한 귀금속의 중량비가 0.1 내지 5.0%인 것을 특징으로 하는 촉매.
  7. 제5항 또는 제6항에 있어서, 금속산화물에 대한 귀금속의 중량비가 0.1 내지 1.0%인 것을 특징으로 하는 촉매.
  8. 제5항 제6항 또는 제7항에 있어서, 귀금속이 금, 은, 백금, 팔라듐, 로듐, 루테늄, 오스뮴, 이리듐, 또는 이들의 혼합물인 것을 특징으로 하는 촉매.
  9. 제1항 내지 제9항중 어느 하나의 항에 있어서, 제1금속산화물의 층위에 지지체물질이 추가로 구성되는 것을 특징으로 하는 촉매.
  10. 제9항에 있어서, 지지체 물질이 세라믹, 제올라이트, 다공성 탄소, 다공성 종이 및 금속 망사중 적어도 하나인 것을 특징으로 하는 촉매.
  11. 지지체 물질, 2개의 금속산화물층 및, 외부 귀금속층으로 구성되어 있되, 지지체 물질이 이산화규소이고, 제1금속산화물층이 코발트(Ⅱ,Ⅲ) 산화물이며, 제2금속산화물층이 주석산화물이고, 귀금속이나 금이나 백금 또는 그의 혼합물인 것을 특징으로 하는 제1항 내지 제10항에 따른 일산화 탄소 산화용 층상 금속산화물 촉매.
  12. 지지체 물질 2개의 금속산화물층 및 귀금속층으로 구성되어 있되 지지체 물질이 이산화규소이고, 제1금속산화물층이 코발트(Ⅱ,Ⅲ)산화물이고, 제2금속산화물이 구리 산화물이고 귀금속이 백금 및 로듐으로 되는 것을 특징으로 하는 제1항 내지 제10항에 따른 일산화 탄소 산화용 층상 금속산화물 촉매.
  13. (a)제1금속산화물의 염의 수용액을 염기 수용액에 첨가하는 단계와, (b)단계(a)의 현탁액에 제2금속산화물의 염의 수용액을 첨가하는 단계와, (c)단계, (b)에서 생성되는 침전물을 단리시키고, (d)침전물을 가열시키고, 금속산화물이 티탄, 크롬, 철, 코발트, 니켈, 구리, 아연, 몰리브덴, 텅스텐 또는 주석산물인 것을 특징으로 하는 일산화탄소 산화용 층상 금속 산화물 촉매의 제조방법.
  14. 제13항에 있어서, 단계(c)의 침전물을 95℃와 500℃ 사이의 온도로 가열시키는 것을 특징으로 하는 방법.
  15. 제13항 또는 제14항에 있어서, 단계(c)의 침전물을 300℃와 400℃사이의 온도로 가열시키는 것을 특징으로 하는 방법.
  16. 제13항 또는 제14항 또는 15항에 있어서, 단계(c)의침전물을 1시간과 12시간 사이의 시간동안 가열하는 것을 특징으로 하는 방법.
  17. (a)제1금속산화물의 염의 수용액을 염기 수용액에 첨가하는 단계와, (b)단계 (a)의 현탁에 제2금속산화물의 염의 수용액을 첨가하는 단계와, (c)포름알델히드의 수용액을 첨가하는 단계와, (d)귀금속 염의 수용액을 첨가하는 단계와, (e)단계 (b)에서 생성되는 침전물을 가열시키는 단계와, (f)침전물을 단리시키는 단계로 이루어지고, 제2금속산화물상에 귀금속층이 형성되어 있되, 상기 금속산화물은 티탄, 철, 코발트, 디켈, 구리, 아연, 몰리브덴, 텅스텐 또는 주석산화물이고, 귀금속은 금은, 백금, 팔라듐, 토듐, 루테늄, 오스뮴, 및 이리듐 중 적어도 하나인 것을 특징으로 하는 일산화탄소산화용 층상 금속산화물 촉매의 제조방법.
  18. 제17항에 있어서, 단계(d)의 침전물을 95℃와 500℃ 사이의 온도로 가열하는 것을 특징으로 하는 방법.
  19. 제17항 또는 제18항에 있어서 단계(d)의 침전물을 300℃와 400℃ 사이의 온도로 가열하는 것을 특징으로 하는 방법.
  20. 제17항, 제18항 또는 제19항에 있어서, 단계(d)의 침전물을 1시간과 12시간 사이의 시간 동안 가열하는 것을 특징으로 하는 방법.
  21. 제13항 내지 제20항중 어느 한 항에 있어서, 염기용액을 제1금속산화물의 염기에 첨가하는 것을 특징으로 하는 방법.
  22. 제13항 내지 제21항중 어느 한 항에 있어서, 제1금속산화물의 염이 코발트(Ⅱ) 질산염 및 철(Ⅱ) 질산중 적어도 하나이고, 제2금속산화물의 염은 코발트(Ⅱ) 질산염 및 주석(Ⅱ) 염화물중 적어도 하나이며, 제2금속산화물은 제1금속산화물과 서로 다른것을 특징으로 하는 방법.
  23. 제13항 내지 제22항중 어느 하나의 항에 있어서, 염기는 중탄산나트륨, 수산화나트륨, 탄산칼슘 및 수산화리튬중 적어도 하나인 것을 특징으로 하는 방법.
  24. 제13항 내지 제23항중 어느 하나의 항에 있어서, 지지체의 현탁액을 먼저 염기의 수용액에 첨가하는 것을 특징으로 하는 방법.
  25. 제24항에 있어서, 지지체는 세라믹, 제울라이트, 다공성 탄소, 다공성 종이 및 금속 망사중 적어도 하나인 것을 특징으로 하는 방법.
  26. 제13항 내지 제25항중 어느 하나의 항에 있어서, 단계(a)에서 생성도이는 첨가물을 단리시키는 단계와, 이 침전물을 단계(b)의 용액에 첨가하는 단계가 추가로 구성되는 것을 특징으로 하는 방법.
  27. 복수개의 금속산화물층으로 되어 있되 이 금속산화물은 티탄, 크롬, 철, 코발트, 니켈, 구리, 아연, 몰리브덴, 텅스텐 또는 주석산화물인 것을 특징으로 하는 흡연물품에 유용한 일산화탄소 산화용 층상 금속 산화물 촉매.
  28. 지지체 물질, 2개의 금속산화물층 및 외부 귀금속층으로 구성되어 있되, 지지체 물질이 이산화규소이고, 제1금속산화물층이 코발트(Ⅱ,Ⅲ)산화물이며, 제2금속산화물층이 주석산화물이고, 귀금속이 금이나 백금 또는 그의 혼합물인 것을 특징으로 하는 제27항에 따른 일산화탄소 산화용 층상 금속산화물 촉매.
  29. 지지체 물질, 2개의 금속산화물층 및 외부 귀금속층으로 구성되어 있되, 지지체 물질이 이산화규소이고, 제1금속산화물층이 코발트(Ⅱ,Ⅲ)산화물이고, 제2금속산화물이 구리산화물이고, 귀금속이 백금 및 로듐으로 되는 것을 특징으로 하는 제27항에 따른 일산화탄소 산화용 층상 금속산화물 촉매.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920002266A 1991-02-15 1992-02-15 혼합 전이금속 산화물 촉매를 사용하는 일산화탄소의 전환방법 KR920016138A (ko)

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US07/656,306 US5258340A (en) 1991-02-15 1991-02-15 Mixed transition metal oxide catalysts for conversion of carbon monoxide and method for producing the catalysts
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