KR20130109457A - 크실릴렌디아민의 제조방법 - Google Patents
크실릴렌디아민의 제조방법 Download PDFInfo
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- C07C209/02—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of hydrogen atoms by amino groups
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- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/26—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring
- C07C211/27—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains
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Abstract
Description
도 2는 본 발명의 실시예에 따른 가암모니아 산화반응에 사용한 반응기의 개략도이다.
Claims (10)
- 크실렌으로부터 크실릴렌디아민을 제조하는 방법에 있어서,
(1) 크실렌을 촉매 하에서 암모니아 및 산소함유가스와 반응시켜 프탈로니트릴을 함유하는 반응생성가스를 제조하는 가암모니아 산화반응 단계;
(2) 상기 가암모니아 산화반응의 반응생성가스를 냉각하여 프탈로니트릴을 선택적으로 석출시킨 후, 석출된 프탈로니트릴을 유기용매로 용해하는 프탈로니트릴 회수 단계;
(3) 상기 (2)단계에 의해서 프탈로니트릴이 석출되고 남은 가암모니아 산화반응의 반응생성가스를 냉각하여, 상기 반응생성가스 중의 물, 크실렌 및 톨루니트릴을 응축시키고, 층분리된 유기층을 상기 (1)단계의 가암모니아 산화반응 단계의 원료로 재이용하는 크실렌 및 톨루니트릴 회수 단계;
(4) 상기 (2)단계에서 얻은 프탈로니트릴이 용해된 용액에 액체 암모니아를 첨가한 후, 수소화하여 크실릴렌디아민을 합성하는 수소화반응 단계; 및
(5) 상기 (4)단계에서 얻은 크실릴렌디아민을 함유하는 수소화반응 생성물에서 암모니아, 유기용매 및 고비물을 분리하여 고순도 크실릴렌디아민을 얻는 크실릴렌디아민 정제 단계를 포함하는 크실릴렌디아민의 제조방법. - 제 1항에 있어서, 상기 (1) 단계의 촉매는 바나듐 (V), 크롬 (Cr), 안티모니 (Sb), 몰리브덴 (Mo), 철 (Fe) 및 텅스텐 (W)으로 이루어진 군으로부터 선택된 하나 이상의 금속의 산화물인 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 1항에 있어서, 상기 (1) 단계의 산소함유가스는 산소를 함유한 공기, 불활성 가스로 희석된 공기 또는 산소인 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 1항에 있어서, 상기 (2) 단계의 냉각은 80℃ 내지 프탈로니트릴의 승화온도 범위에서 수행되는 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 1항에 있어서, 상기 (2) 단계의 유기용매는 방향족 탄화수소, 포화지환족 탄화수소, 헤테로고리 화합물, 방향족 니트릴, 헤테로고리 니트릴, 이미다졸류, 톨루니트릴류, 메틸벤질아민류, 크실릴렌디아민류, N-메틸-2-피롤리돈 (NMP), 메시틸렌 및 수도규멘으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 1항에 있어서, 상기 (3) 단계의 냉각은 0℃ 내지 50℃ 범위에서 수행되는 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 1항에 있어서, 상기 (4) 단계의 수소화반응은 촉매하, 40℃ 내지 150℃ 범위의 온도, 및 3 내지 30 MPa 범위의 압력하에서 수행되는 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제 7항에 있어서, 상기 촉매는 니켈 또는 코발트 함유 촉매인 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제1항에 있어서, 상기 (5) 단계에서 분리한 암모니아는 상기 (4) 단계의 수소화반응 단계로 순환시켜 재이용하고, 상기 (5) 단계에서 분리한 유기용매는 상기 (2) 단계의 프탈로니트릴 회수 단계로 순환시켜 재이용하는 것을 특징으로 하는 크실릴렌디아민의 제조방법.
- 제1항에 있어서, 상기 크실렌은 o-크실렌 (o-xylene), m-크실렌 (m-xylene) 및 p-크실렌 (p-xylene)으로 이루어진 군으로부터 선택된 적어도 하나의 크실렌 화합물이고, 상기 프탈로니트릴은 o-프탈로니트릴, 이소프탈로니트릴 및 테레프탈로니트릴로 이루어진 군으로부터 선택된 적어도 하나의 프탈로니트릴 화합물이며, 상기 크실릴렌디아민은 o-크실릴렌디아민, m-크실릴렌디아민 및 p-크실릴렌디아민으로 이루어진 군으로부터 선택된 적어도 하나의 크실릴렌디아민인 것을 특징으로 하는 크실릴렌디아민의 제조방법.
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KR1020120031195A KR101399572B1 (ko) | 2012-03-27 | 2012-03-27 | 크실릴렌디아민의 제조방법 |
PCT/KR2013/002481 WO2013147485A1 (ko) | 2012-03-27 | 2013-03-26 | 크실릴렌디아민의 제조방법 |
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KR101399572B1 KR101399572B1 (ko) | 2014-05-27 |
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CN116283602A (zh) * | 2022-09-06 | 2023-06-23 | 宁夏东庚新材料科技有限公司 | 一种高纯间苯二甲胺生产方法及生产系统 |
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US3862202A (en) * | 1973-07-16 | 1975-01-21 | Sun Research Development | Terephthalonitrile process |
DE10341614A1 (de) * | 2003-09-10 | 2005-04-28 | Basf Ag | Verfahren zur Herstellung von Xylylendiamin (XDA) |
DE10341633A1 (de) * | 2003-09-10 | 2005-04-28 | Basf Ag | Verfahren zur Herstellung von Xylylendiamin |
US7915452B2 (en) * | 2004-06-23 | 2011-03-29 | Mitsubishi Gas Chemical Company, Inc. | Process for producing highly purified xyltlenediamine |
WO2007014901A1 (de) * | 2005-08-02 | 2007-02-08 | Basf Se | Verfahren zur herstellung von xylylendiamin durch kontinuierliche hydrierung von phthalodinitril |
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