KR910002824A - 산화에틸렌 생성방법 - Google Patents
산화에틸렌 생성방법 Download PDFInfo
- Publication number
- KR910002824A KR910002824A KR1019890010472A KR890010472A KR910002824A KR 910002824 A KR910002824 A KR 910002824A KR 1019890010472 A KR1019890010472 A KR 1019890010472A KR 890010472 A KR890010472 A KR 890010472A KR 910002824 A KR910002824 A KR 910002824A
- Authority
- KR
- South Korea
- Prior art keywords
- moderator
- catalyst
- ethylene oxide
- chlorohydrocarbon
- promoted
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
- C07D301/10—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epoxy Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 일정한 감속재 수준(커브A)과 증가하는 감속재 수준(커브B)에 대해 시간의 함수로서 알칼리 금속. 레늄 및 황산염으로 촉진되고, 지지된 은 촉매에 대한 활성 손실을 나타낸 것이다.
제2도는 본 발명의 방법에 따라 작용된 통상적 공정에 사용된 알칼리금속, 레늄 및 황산염으로 촉진되고, 지지된 은 촉매에 대해 시간의 함수로서, 클로로히드록카본 감속재 수준을 나타낸 것이다.
제3도는 감속재 수준의 함수로 주어진 반응조건과 일정한 산소 전환 수준에서 통상적인 산화에틸렌 촉매(촉매B)와 레늄 촉진된 산화 에틸렌 촉매(촉매A)의 선택성을 나타낸 개략도이다.
Claims (12)
- 표준 공정 조건하에서 촉매상을 통과하는 가스내 클로로히드로카본 감속재의 농도를, 촉매작용 동안 증가시키는 것을 특징으로 하는, 알칼리 금속 및 레늄으로 촉진시킨 알루미나 상에서 지지된 은으로 구성되는 촉매의 고정상 위로, 에틸렌, 산소 및 클로로히드로카본 감속재로 구성되는 가스를 통과시키는 것으로 구성된 산화 에틸렌 제조 방법.
- 제1항에 있어서, 감속재의 평균속도 증가가 매달 적어도 0.5%인 방법.
- 제1항에 있어서, 감속재의 평균속도 증가가 매달 적어도 5%인 방법.
- 제1항에 있어서, 첫 번째 작용 기간동안, 공정이 산화 에틸렌에 대한 최대 선택성을 제공하기에 충분한 클로로히드로카본 감속재 수준에서 조작되고 나서, 촉매 활성이 산화 에틸렌에 대한 촉매 선택성에 있어서의 뚜렷한 감소와 촉매 활성에 있어서의 상응하는 증가를 일으키는데 충분한 양으로 클로로히드로카본 금속재 수준을 작용의 두 번째 기간에 증가시키는 작용상의 문제를 일으키기에 충분하게 감퇴되는 방법.
- 4항에 있어서, 작용의 두 번째 기간동안, 감속재 수준이 적어도 0.5%에 의해 산화 에틸렌에 대한 선택성을 감소시키기에 충분하게 증가되는 방법.
- 제4항에 있어서, 작용의 두 번째 기간동안, 감속재 수준이 적어도 2.0%에 의해 산화 에틸렌에 대한 선택성을 감소시키기에 충분하게 증가되는 방법.
- 제1항 내지 제6항중 어느 한 항에 있어서, 촉매가 황산염 보조-촉진제에 의해 첨가로 촉진되는 방법.
- 제1항에 있어서, 촉매가 세슘 및 레늄에 의해 촉진된 알파 알루미나상에 지지된 은인 방법.
- 제8항에 있어서, 촉매가 세슘, 리튬 및 레늄에 의해 촉진된 알파 알루미나상 지지된 은인 방법.
- 제1항 내지 제9항중 어느 한 항에 있어서, 감속재가 C1내지 C8클로로히드로카본인 방법.
- 제10항에 있어서, 감속재가 C1또는 C2클로로히드로카본인 방법.
- 제11항에 있어서, 감속재가 염화 메틸, 염화 에틸, 이 염화 에틸렌, 염화 비닐 또는 이들 혼합물인 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22404688A | 1988-07-25 | 1988-07-25 | |
US22451488A | 1988-07-25 | 1988-07-25 | |
US224,514 | 1988-07-25 | ||
US224,046 | 1994-04-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910002824A true KR910002824A (ko) | 1991-02-26 |
KR0134882B1 KR0134882B1 (en) | 1998-04-22 |
Family
ID=26918377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR89010472A KR0134882B1 (en) | 1988-07-25 | 1989-07-24 | Process for producing ethylene oxide |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0352850B1 (ko) |
JP (1) | JP2779955B2 (ko) |
KR (1) | KR0134882B1 (ko) |
CN (1) | CN1034330C (ko) |
AU (1) | AU615561B2 (ko) |
BR (1) | BR8903657A (ko) |
CA (1) | CA1339317C (ko) |
DE (1) | DE68912440T2 (ko) |
ES (1) | ES2048273T3 (ko) |
TR (1) | TR24693A (ko) |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1458699B1 (en) * | 2001-11-20 | 2005-11-09 | Shell Internationale Researchmaatschappij B.V. | A process and systems for the epoxidation of an olefin |
US7193094B2 (en) | 2001-11-20 | 2007-03-20 | Shell Oil Company | Process and systems for the epoxidation of an olefin |
AU2003247652A1 (en) | 2002-06-28 | 2004-01-19 | Shell Internationale Research Maatschappij B.V. | A method for the start-up of an epoxidation process and a process for the epoxidation of an olefin |
CA2490892C (en) * | 2002-06-28 | 2012-03-20 | Shell Internationale Research Maatschappij B.V. | A method for the start-up of an epoxidation process, a catalyst and a process for the epoxidation of an olefin |
EP1517751B2 (en) | 2002-06-28 | 2016-06-01 | Shell Internationale Research Maatschappij B.V. | A method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin |
CA2520776C (en) | 2003-04-01 | 2012-05-08 | Shell Internationale Research Maatschappij B.V. | An olefin epoxidation process and a catalyst for use in the process |
US7348444B2 (en) | 2003-04-07 | 2008-03-25 | Shell Oil Company | Process for the production of an olefin oxide |
US8148555B2 (en) | 2003-06-26 | 2012-04-03 | Shell Oil Company | Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin |
US20070111886A1 (en) | 2003-10-16 | 2007-05-17 | Serafin Juliana G | Catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production |
RU2007101737A (ru) | 2004-06-18 | 2008-07-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) | Способ получения оксида олефина, 1,2-диола, 1,2-диолового простого эфира или алканоламина |
RU2007101728A (ru) | 2004-06-18 | 2008-07-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) | Способ получения оксида олефина, 1,2-диола, 1,2-диолового эфира или алканоламина |
RU2007111952A (ru) | 2004-09-01 | 2008-10-10 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) | Способ эпоксидирования олефинов, катализатор для применения в данном способе, носитель для использования при получении катализатора и способ получения носителя |
US8536083B2 (en) | 2004-09-01 | 2013-09-17 | Shell Oil Company | Olefin epoxidation process, a catalyst for use in the process, a carrier for use in preparing the catalyst, and a process for preparing the carrier |
MX2007011550A (es) * | 2005-03-22 | 2007-10-19 | Shell Int Research | Sistema y proceso de reactor para la elaboracion de oxido de etileno. |
US7704908B2 (en) | 2005-12-22 | 2010-04-27 | Shell Oil Company | Method for reusing rhenium from a donor spent epoxidation catalyst |
US7977274B2 (en) | 2006-09-29 | 2011-07-12 | Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg | Catalyst with bimodal pore size distribution and the use thereof |
WO2008120639A1 (ja) * | 2007-03-30 | 2008-10-09 | Nippon Shokubai Co., Ltd. | エチレンオキシドの製造方法 |
AR066468A1 (es) | 2007-05-09 | 2009-08-19 | Shell Int Research | Un catalizador de epoxidacion, un proceso para preparar el mismo, y un proceso para producir un oxido de olefina , un 1,2- diol, un 1,2 - diol eter, un 1,2- carbonato, o una alcanolamina |
JP2010527352A (ja) | 2007-05-11 | 2010-08-12 | ビリッグ,バリー,ジェイ. | 酸化オレフィンプラントにおける高選択性触媒の開始 |
DE102007025869A1 (de) | 2007-06-01 | 2008-07-03 | Basf Se | Verfahren der Wiederbeschickung der Reaktionsrohre eines Rohrbündelreaktors mit einem neuen Katalysatorfestbett |
DE102007028333A1 (de) | 2007-06-15 | 2008-12-18 | Basf Se | Verfahren zum Einbringen einer wenigstens einer Produktionscharge von ringförmigen Schalenkatalysatoren K entnommenen Teilmenge in ein Reaktionsrohr eines Rohrbündelreaktors |
DE102007028332A1 (de) | 2007-06-15 | 2008-12-18 | Basf Se | Verfahren zum Beschicken eines Reaktors mit einem Katalysatorfestbett, das wenigstens ringförmige Katalysatorformkörper K umfasst |
JP4953133B2 (ja) * | 2007-09-21 | 2012-06-13 | 住電朝日精工株式会社 | 接地用具 |
PL2297125T3 (pl) | 2008-05-07 | 2013-12-31 | Shell Int Research | Sposób wytwarzania tlenku olefiny, 1,2-diolu, eteru 1,2-diolu, 1,2-węglanu albo alkanoloaminy |
WO2009137427A2 (en) | 2008-05-07 | 2009-11-12 | Shell Oil Company | A process for the start-up of an epoxidation process, a process for the production of ethylene oxide, a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine |
CN101497045B (zh) * | 2009-03-11 | 2011-03-30 | 华东理工大学 | 一种丙烯液相一步氧化制环氧丙烷用催化剂及制备方法 |
SG175132A1 (en) | 2009-04-08 | 2011-11-28 | Novomer Inc | Process for beta-lactone production |
CN102421766B (zh) | 2009-04-21 | 2015-03-25 | 陶氏技术投资有限公司 | 提高铼助催化的环氧化催化剂的效率的方法以及使用它们的环氧化方法 |
KR101730667B1 (ko) | 2009-04-21 | 2017-04-26 | 다우 테크놀로지 인베스트먼츠 엘엘씨. | 고 효율 촉매에 의한 지정된 알킬렌 옥사이드 생산 파라미터의 달성 및 유지의 개선법 |
JP5756088B2 (ja) * | 2009-04-21 | 2015-07-29 | ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー | エポキシ化反応及びその運転条件 |
SG175770A1 (en) | 2009-04-21 | 2011-12-29 | Dow Technology Investments Llc | Simplified method for producing alkylene oxides with a high efficiency catalyst as it ages |
RU2012130062A (ru) | 2009-12-17 | 2014-01-27 | Сайентифик Дизайн Компани, Инк. | Способ получения окиси олефина |
BR112012015219B1 (pt) | 2009-12-23 | 2018-04-03 | Scientific Design Company, Inc. | Processo para iniciar um catalisador de óxido de etileno altamente seletivo |
US20110152073A1 (en) | 2009-12-23 | 2011-06-23 | Scientific Design Company, Inc. | Epoxidation process and microstructure |
EP2519509B1 (en) | 2009-12-28 | 2017-06-07 | Dow Technology Investments LLC | Method of controlling the production of silver chloride on a silver catalyst in the production of alkylene oxides |
US8742146B2 (en) | 2010-12-08 | 2014-06-03 | Shell Oil Company | Process for improving the selectivity of an EO catalyst |
US8742147B2 (en) * | 2010-12-08 | 2014-06-03 | Shell Oil Company | Process for improving the selectivity of an EO catalyst |
KR101886462B1 (ko) | 2010-12-10 | 2018-08-07 | 다우 테크놀로지 인베스트먼츠 엘엘씨. | 고효율 촉매를 사용하는 알킬렌 옥사이드 제조 방법에서 알킬렌 옥사이드 생산 변수의 값을 감소시키는 방법 |
EP2651908B1 (en) | 2010-12-15 | 2016-02-24 | Dow Technology Investments LLC | Method of starting-up a process of producing an alkylene oxide using a high-efficiency catalyst |
US9067901B2 (en) | 2011-01-24 | 2015-06-30 | Shell Oil Company | Process for the production of ethylene oxide |
CN103328457A (zh) | 2011-01-24 | 2013-09-25 | 国际壳牌研究有限公司 | 环氧乙烷的制备方法 |
JP6174566B2 (ja) | 2011-04-11 | 2017-08-02 | ダウ テクノロジー インベストメンツ リミティド ライアビリティー カンパニー | 高効率エチレンオキシド触媒の調整方法 |
WO2012158573A1 (en) | 2011-05-13 | 2012-11-22 | Novomer, Inc. | Catalytic carbonylation catalysts and methods |
IN2014DN03028A (ko) * | 2011-10-18 | 2015-05-08 | AHMADI Hassan Eisa AL | |
JP6219834B2 (ja) * | 2011-10-26 | 2017-10-25 | ノボマー, インコーポレイテッド | エポキシドからアクリレートの生成のためのプロセス |
EP2788337B1 (en) | 2011-12-09 | 2016-03-02 | Dow Technology Investments LLC | Method of maintaining the value of an alkylene oxide production parameter in a process of making an alkylene oxide using a high efficiency catalyst |
CN104125858B (zh) | 2011-12-19 | 2017-07-11 | 陶氏技术投资有限责任公司 | 根据催化剂参考性质配制环氧烷催化剂的方法 |
CN104245659B (zh) | 2012-02-13 | 2016-08-24 | 诺沃梅尔公司 | 由环氧化物生产酸酐的方法 |
KR102155068B1 (ko) | 2012-12-31 | 2020-09-11 | 사이언티픽 디자인 컴파니 인코포레이티드 | 고 선택성 산화에틸렌 촉매를 위한 스타트-업 공정 |
KR102155073B1 (ko) * | 2013-01-11 | 2020-09-11 | 사이언티픽 디자인 컴파니 인코포레이티드 | 후-컨디셔닝 단계를 이용하는 에폭시화 공정 |
US9221776B2 (en) | 2013-12-23 | 2015-12-29 | Scientific Design Company, Inc. | Epoxidation process |
WO2015171372A1 (en) | 2014-05-05 | 2015-11-12 | Novomer, Inc. | Catalyst recycle methods |
CN106488899B (zh) | 2014-05-30 | 2020-08-18 | 诺沃梅尔公司 | 用于化学合成的综合方法 |
WO2016015019A1 (en) | 2014-07-25 | 2016-01-28 | Novomer, Inc. | Synthesis of metal complexes and uses thereof |
MA41513A (fr) | 2015-02-13 | 2017-12-19 | Novomer Inc | Procédé de distillation pour la production d'acide acrylique |
MA41510A (fr) | 2015-02-13 | 2017-12-19 | Novomer Inc | Procédé de production d'acide acrylique |
MA41514A (fr) | 2015-02-13 | 2017-12-19 | Novomer Inc | Procédés intégrés de synthèse chimique |
AU2016218996A1 (en) | 2015-02-13 | 2017-08-24 | Novomer, Inc. | Continuous carbonylation processes |
CA3043504A1 (en) | 2016-12-02 | 2018-06-07 | Shell Internationale Research Maatschappij B.V. | Methods for conditioning an ethylene epoxidation catalyst and associated methods for the production of ethylene oxide |
US11059017B2 (en) | 2017-09-15 | 2021-07-13 | MultiPhase Solutions, Inc. | Halogen selective detection gas chromatography for the on-line analysis and control of selective oxidation chemical production processes |
CN114436998A (zh) * | 2020-11-05 | 2022-05-06 | 中国石油化工股份有限公司 | 一种乙烯环氧化开车方法 |
TW202239752A (zh) | 2020-12-29 | 2022-10-16 | 荷蘭商蜆殼國際研究所 | 用於生產環氧乙烷之製程 |
TW202239751A (zh) | 2021-04-08 | 2022-10-16 | 荷蘭商蜆殼國際研究所 | 用於乙烯之環氧化的緩和劑及催化劑效能最佳化 |
CA3232520A1 (en) | 2021-09-23 | 2023-03-30 | Wen -Sheng LEE | Process for reducing the aging-related deactivation of high selectivity ethylene oxide catalysts |
US11931725B2 (en) | 2022-07-19 | 2024-03-19 | Scientific Design Company, Inc. | Ethylene oxide high selectivity catalyst conditioning process |
WO2024076943A1 (en) | 2022-10-04 | 2024-04-11 | Dow Global Technologies Llc | Process for reducing the overchloriding of high selectivity ethylene oxide catalysts during restarts |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279470A (en) * | 1938-04-12 | 1942-04-14 | Carbide & Carbon Chem Corp | Process of making olefin oxides |
SE321462B (ko) * | 1962-10-10 | 1970-03-09 | Halcon International Inc | |
IN169589B (ko) * | 1986-10-31 | 1991-11-16 | Shell Int Research | |
US4808738A (en) * | 1986-10-31 | 1989-02-28 | Shell Oil Company | Ethylene oxide process |
-
1989
- 1989-07-14 CA CA000605659A patent/CA1339317C/en not_active Expired - Lifetime
- 1989-07-19 ES ES89201909T patent/ES2048273T3/es not_active Expired - Lifetime
- 1989-07-19 DE DE89201909T patent/DE68912440T2/de not_active Expired - Lifetime
- 1989-07-19 EP EP89201909A patent/EP0352850B1/en not_active Expired - Lifetime
- 1989-07-24 KR KR89010472A patent/KR0134882B1/ko not_active IP Right Cessation
- 1989-07-24 JP JP1189021A patent/JP2779955B2/ja not_active Expired - Fee Related
- 1989-07-24 BR BR898903657A patent/BR8903657A/pt not_active IP Right Cessation
- 1989-07-25 TR TR89/0621A patent/TR24693A/xx unknown
- 1989-07-25 CN CN89106106A patent/CN1034330C/zh not_active Expired - Lifetime
- 1989-07-25 AU AU38920/89A patent/AU615561B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0352850A1 (en) | 1990-01-31 |
AU3892089A (en) | 1990-01-25 |
DE68912440D1 (de) | 1994-03-03 |
CN1034330C (zh) | 1997-03-26 |
DE68912440T2 (de) | 1994-05-11 |
JP2779955B2 (ja) | 1998-07-23 |
CN1041591A (zh) | 1990-04-25 |
JPH02104579A (ja) | 1990-04-17 |
ES2048273T3 (es) | 1994-03-16 |
TR24693A (tr) | 1992-01-13 |
EP0352850B1 (en) | 1994-01-19 |
BR8903657A (pt) | 1990-03-13 |
CA1339317C (en) | 1997-08-19 |
AU615561B2 (en) | 1991-10-03 |
KR0134882B1 (en) | 1998-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR910002824A (ko) | 산화에틸렌 생성방법 | |
KR880004850A (ko) | 에틸렌 옥사이드의 촉매적 제조를 위한 촉매 및 그 제조방법 | |
RU2002135677A (ru) | Способ осуществления эпоксидирования этилена | |
CA1329470C (en) | Process for starting-up an ethylene oxide reactor | |
US5155242A (en) | Process for starting-up an ethylene oxide reactor | |
JPS6434444A (en) | Production of silver-containing catalyst | |
KR970704655A (ko) | 부틴디올의 부텐디올로의 선택적 수소화 방법 및 이를 위한 촉매(Process And Catalyst For The Selective Hydrogenation Of Buting Diol To Butene Diol) | |
CA2411070A1 (en) | Process for operating the epoxidation of ethylene with supported silver catalysts | |
JP2004503548A5 (ko) | ||
KR900015813A (ko) | 활성 및/또는 안정성이 증가된 알킬렌 옥사이드 촉매 | |
CA2059711A1 (en) | Ethylene oxide catalyst and process | |
ES461441A1 (es) | Procedimiento para mejorar la eficacia de catalizadores usa-dos de soporte impregnado de plata. | |
KR870010900A (ko) | 향상된 은 촉매 및 그 제조방법 | |
US3825654A (en) | Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines | |
ES264087A1 (es) | Un procedimiento para la producciën de cloro | |
KR870000101A (ko) | 은 함유 촉매 및 산화에틸렌과 이 촉매의 제조방법 | |
ATE133946T1 (de) | Selektive monoepoxydierung von styren, styren- analogen und styren-derivaten zu den entsprechenden oxiden mit molekularem sauerstoff | |
GB950363A (en) | Catalysts and catalytic processes | |
KR870000100A (ko) | 은-함유 촉매 및 산화에틸렌과 이 촉매의 제조방법 | |
ES8407297A1 (es) | Procedimiento para la preparacion de catalizadores de plata. | |
ES8401003A1 (es) | "un procedimiento para hidroxilar al menos un compuesto olefinico que posee por lo menos una insaturacion etilenica". | |
KR930000463A (ko) | 비닐 아세테이트의 제조방법 및 이에 사용되는 촉매 | |
ES8102053A1 (es) | Un procedimiento de preparar un material catalitico para la oxidacion de dioxido de azufre a trioxido de azufre | |
KR900002839A (ko) | 촉매 조성물 및 이의 제조방법과 이들 조성물에 의한 1,1,2- 트리클로로- 1,2,2- 트리플루오로에탄의 수소화 방법 | |
JPS52136103A (en) | Preparation of vinyl chloride |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20090105 Year of fee payment: 12 |
|
LAPS | Lapse due to unpaid annual fee |