KR100838467B1 - 메타아크릴산의 제조방법 - Google Patents
메타아크릴산의 제조방법 Download PDFInfo
- Publication number
- KR100838467B1 KR100838467B1 KR1020060008741A KR20060008741A KR100838467B1 KR 100838467 B1 KR100838467 B1 KR 100838467B1 KR 1020060008741 A KR1020060008741 A KR 1020060008741A KR 20060008741 A KR20060008741 A KR 20060008741A KR 100838467 B1 KR100838467 B1 KR 100838467B1
- Authority
- KR
- South Korea
- Prior art keywords
- methacrylic acid
- catalyst
- volume
- reaction gas
- temperature
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (5)
- 메타아크롤레인, 수증기, 및 산소를 포함하는 반응가스와 폴리옥소메탈레이트 화합물을 기본으로 하는 촉매를 접촉시켜 메타아크릴산을 제조하는데 있어서, 반응가스와 촉매 접촉시 촉매층의 온도를 230∼400 ℃의 범위에서 1∼2 시간을 주기로 하여 승온 및 냉각하는 과정을 반복하는 것을 특징으로 하는 메타아크릴산의 제조방법.
- 제1항에 있어서,상기 반응가스가 메타아크롤레인 3 내지 6.5 부피%, 수증기 5 내지 15 부피%, 및 산소 5 내지 15 부피%로 포함하는 것을 특징으로 하는 메타아크릴산의 제조방법.
- 제1항에 있어서,상기 반응가스가 질소, 헬륨, 아르곤, 및 이산화탄소로 이루어지는 군으로부터 1 종 이상 선택되는 밸런스 가스를 70 내지 80 부피%의 농도로 추가로 포함하는 것을 특징으로 하는 메타아크릴산의 제조방법.
- 제1항에 있어서,상기 촉매가 담체에 담지되지 않은 상태 또는 실리카, 알루미나, 실리카-알루미나, 및 실리콘 카바이드로 이루어지는 군으로부터 선택되는 불활성 담체에 담 지된 상태로 사용되는 것을 특징으로 하는 메타아크릴산의 제조방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060008741A KR100838467B1 (ko) | 2006-01-27 | 2006-01-27 | 메타아크릴산의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020060008741A KR100838467B1 (ko) | 2006-01-27 | 2006-01-27 | 메타아크릴산의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070078486A KR20070078486A (ko) | 2007-08-01 |
KR100838467B1 true KR100838467B1 (ko) | 2008-06-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060008741A KR100838467B1 (ko) | 2006-01-27 | 2006-01-27 | 메타아크릴산의 제조방법 |
Country Status (1)
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KR (1) | KR100838467B1 (ko) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010067093A (ko) * | 1999-08-23 | 2001-07-12 | 마크 에스. 아들러 | 폴리옥소메탈레이트 지지촉매 |
KR20030082407A (ko) * | 2002-04-16 | 2003-10-22 | 스미또모 가가꾸 고교 가부시끼가이샤 | 메타크릴산 제조용 촉매의 재생방법 |
KR20050043737A (ko) * | 2001-11-02 | 2005-05-11 | 캘리포니아 인스티튜트 오브 테크놀로지 | 폴리옥소메탈레이트 촉매 및 알칸의 촉매적 부분 산화에의한 카르복실산의 제조 방법 |
-
2006
- 2006-01-27 KR KR1020060008741A patent/KR100838467B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010067093A (ko) * | 1999-08-23 | 2001-07-12 | 마크 에스. 아들러 | 폴리옥소메탈레이트 지지촉매 |
KR20050043737A (ko) * | 2001-11-02 | 2005-05-11 | 캘리포니아 인스티튜트 오브 테크놀로지 | 폴리옥소메탈레이트 촉매 및 알칸의 촉매적 부분 산화에의한 카르복실산의 제조 방법 |
KR20030082407A (ko) * | 2002-04-16 | 2003-10-22 | 스미또모 가가꾸 고교 가부시끼가이샤 | 메타크릴산 제조용 촉매의 재생방법 |
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KR20070078486A (ko) | 2007-08-01 |
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