KR960037630A - Separation method of methyl acrylate or methyl methacrylate and methanol - Google Patents
Separation method of methyl acrylate or methyl methacrylate and methanol Download PDFInfo
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- KR960037630A KR960037630A KR1019950008230A KR19950008230A KR960037630A KR 960037630 A KR960037630 A KR 960037630A KR 1019950008230 A KR1019950008230 A KR 1019950008230A KR 19950008230 A KR19950008230 A KR 19950008230A KR 960037630 A KR960037630 A KR 960037630A
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- methanol
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- methyl acrylate
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Abstract
본 발명은 아크릴산 메틸 또는 메타크릴산 메틸과 메탄올의 혼합물 또는 아크릴산 메틸 또는 메타크릴산 메틸과 물 및 메탄올의 혼합물에서 메탄올과 공비 혼합물을 형성하는 공비용제(azeotropic solvent)를 사용하여 메탄올을 분리하는 방법에 관한 것이다. 이와 같은 혼합물은 증류탑을 사용하여 하기와 같이 증류한다. (1) 증류탑의 탑정(塔頂)으로부터 증류되어 나온 증기의 응축액 일부를 증류탑의 탑정에 다시 환류시키고 ; (2)나머지 응축액을 두층으로 분리시키고 ; (3) 상기 두층으로 분리시킨, 본질적으로 공비용제로 이루어진 상층을 증류탑의 중단에 공급하고 ; (4) 상기 두층으로 분리시킨, 본질적으로 메탄올로 이루어진 하층을 증류계 밖으로 유출시키고 ; (5) 증류탑의 탑저(塔底)로부터 아크릴산 메틸 또는 메타크릴산 메틸을, 또는 아크릴산 메틸 또는 메타크릴산 메틸과 물을 회수한다.The present invention provides a process for separating methanol using an azeotropic solvent which forms an azeotrope with methanol in a mixture of methyl acrylate or methyl methacrylate and methanol or a mixture of methyl acrylate or methyl methacrylate with water and methanol. It is about. This mixture is distilled as follows using a distillation column. (1) a part of the condensate of the vapor distilled from the column top of the distillation column is refluxed to the column top of the distillation column again; (2) separating the remaining condensate into two layers; (3) feeding the top of the distillation column essentially an adjuvant separated into two layers; (4) distilling the lower layer consisting essentially of methanol separated into the two layers out of the distillation system; (5) Methyl acrylate or methyl methacrylate, or methyl acrylate or methyl methacrylate and water are recovered from the bottom of the distillation column.
나머지 응측액을 두층으로 분리할 때 물을 메탄올의 중량에 대해 0.1∼10배 첨가한다.When the remaining coagulant is separated into two layers, water is added 0.1 to 10 times the weight of methanol.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명을 이용한 (메타)아크릴산 메틸과 메탄올의 혼합물로부터 연속 공정으로 메탄올을 회수하는 장치, 제2도는 종래의 기술을 이용한 (메타)아크릴산 메틸과 메탄올의 혼합물로부터 연속 공정으로 메탄올을 회수하는 장치, 제3도는 본 발명을 이용한 증류탑을 갖는 에스테르 교환반응기, 제4도는 종래의 기술을 이용한 증류탑을 갖는 에스테르 교환반응기이다.1 is a device for recovering methanol in a continuous process from a mixture of methyl (meth) acrylate and methanol using the present invention, and FIG. 2 is a methanol recovery in a continuous process from a mixture of methyl (meth) acrylate and methanol using a conventional technique. FIG. 3 is a transesterification reactor having a distillation column using the present invention, and FIG. 4 is a transesterification reactor having a distillation column using a conventional technique.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019950008230A KR100342737B1 (en) | 1995-04-10 | 1995-04-10 | Separation method of methyl acrylate or methyl methacrylate and methanol |
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KR1019950008230A KR100342737B1 (en) | 1995-04-10 | 1995-04-10 | Separation method of methyl acrylate or methyl methacrylate and methanol |
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Publication Number | Publication Date |
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KR960037630A true KR960037630A (en) | 1996-11-19 |
KR100342737B1 KR100342737B1 (en) | 2002-12-11 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019950008230A KR100342737B1 (en) | 1995-04-10 | 1995-04-10 | Separation method of methyl acrylate or methyl methacrylate and methanol |
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KR (1) | KR100342737B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160026829A (en) * | 2013-06-27 | 2016-03-09 | 오사카 유키가가쿠고교 가부시키가이샤 | (meth)acrylate production system |
US10486080B2 (en) | 2015-07-02 | 2019-11-26 | Lg Chem, Ltd. | Distillation device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2859682B2 (en) * | 1989-03-31 | 1999-02-17 | 三井化学株式会社 | Purification method and production method of methyl methacrylate |
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1995
- 1995-04-10 KR KR1019950008230A patent/KR100342737B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160026829A (en) * | 2013-06-27 | 2016-03-09 | 오사카 유키가가쿠고교 가부시키가이샤 | (meth)acrylate production system |
US10486080B2 (en) | 2015-07-02 | 2019-11-26 | Lg Chem, Ltd. | Distillation device |
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KR100342737B1 (en) | 2002-12-11 |
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