KR970020137A - (메트)아크릴산을 주성분으로서 함유하는 액체 혼합물을 연속적으로 증류-분리하는 방법 - Google Patents

(메트)아크릴산을 주성분으로서 함유하는 액체 혼합물을 연속적으로 증류-분리하는 방법 Download PDF

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KR970020137A
KR970020137A KR1019960047606A KR19960047606A KR970020137A KR 970020137 A KR970020137 A KR 970020137A KR 1019960047606 A KR1019960047606 A KR 1019960047606A KR 19960047606 A KR19960047606 A KR 19960047606A KR 970020137 A KR970020137 A KR 970020137A
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liquid
still
liquid mixture
pressure
separated
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KR1019960047606A
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KR100464841B1 (ko
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크로커 루프레흐트
비데만 만프레트
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라이싱어; 비베르바흐
바스프 악티엔게젤샤프트
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D279/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms
    • C07D279/10—1,4-Thiazines; Hydrogenated 1,4-thiazines
    • C07D279/14—1,4-Thiazines; Hydrogenated 1,4-thiazines condensed with carbocyclic rings or ring systems
    • C07D279/18—[b, e]-condensed with two six-membered rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/58—Preparation of carboxylic acid halides
    • C07C51/64—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/03—Monocarboxylic acids
    • C07C57/04—Acrylic acid; Methacrylic acid
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/22—Accessories

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

(메트)아크릴산을 주성분으로서 함유하는 액체 혼합물을, 증류기, 응축기 및 증류기와 응축기 사이의 연결부를 포함하고 분리시키려는 상기 액체 혼합물이 연속-공급되는 증류 장치내에서 다음과 같은 방법에 의해 연속적으로 분리시킨다: 증류기내의 액체 함유물의 일부를 연속적으로 분리시키고 과열시켜, 상기 증류기에 재순환시키는 과정에 의해 상기 액체 혼합물의 증발에 필요한 에너지를 상기 증류 장치에 공급하는 방법에 의해 수행한다.

Description

(메트)아크릴산을 주성분으로서 함유하는 액체 혼합물을 연속적으로 증류-분리하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 증류기 외부에 설치되고 드로틀 장치에 의해 증류기와 분리되는 강제-순환 관형 증발기를 사용하는 증류 장치의 개략도이다,
제2도는 로버트(Robert) 증발기의 개략도이다.

Claims (10)

  1. (메트)아크릴산을 주성분으로서 함유하는 액체 혼합물을, 증류기, 응축기 및 증류기와 응축기 사이의 연결부를 포함하고 분리시키려는 액체 혼합물이 연속적으로 공급되는 증류 장치내에서, 연속적으로 증류-분리하는 방법으로서, 증류기내의 압력 Px하에 존재하는 액체 함유물의 분획을 연속적으로 분리해내고, 상기 분획을 온도 Ty′가 증류기내의 액체 함유물의 압력 Px에 관해서는 비점 Ty이상이고, 압력 Py에 관해서는 비점 Ty이하인 조건하에서, Px이상인 압력 Py에서 온도 Ty′까지 가열시키고, 그후에 분리해내고 압력 Px에 기초하여 상기 방법으로 과열시킨 증류기 액체의 분획을 증류 장치에 재순환시켜 압력을 낮추는 과정에 의해 상기 액체 혼합물의 증발에 필요한 에너지의 일부 또는 전부를 증류 장치에 공급시키는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 증류에 의해 분리되는 액체 혼합물이 95중량% 이상의 (메트)아크릴산을 함유하는 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 증류기내의 압력이 10mbar 내지 150mbar인 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 분리가 단일-상 플로우 분리법으로서 수행되는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 증류에 의해 분리되는 액체 혼합물이 증류기내로 직접 연속적으로 공급되는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 분리시켜 과열시킨 증류기 액체의 분획을 증류기 액체내로 직접 재순환시키는 것을 특징으로 하는 방법.
  7. 제1항에 있어서, Py및 Px의 차이가 0.2bar 내지 8bar인 것을 특징으로 하는 방법.
  8. 제1항에 있어서, Ty′가 증류기내의 액체 함유물의 온도 보다 3 내지 12K 높은 것을 특징으로 하는 방법.
  9. 제1항에 있어서, 증류기내 액체에서 분리해낸 분획을 관-다발 열교환기내에서 과열시키는 것을 특징으로 하는 방법.
  10. 제1항에 있어서, 증류에 의해 분리되는 상기 액체 혼합물이 (메트)아크릴산 뿐만 아니라 페노티아진 및 도데실벤젠술폰산을 함유하는 것을 특징으로 하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960047606A 1995-10-23 1996-10-23 (메트)아크릴산을주성분으로서함유하는액체혼합물을연속적으로증류분리하는방법 KR100464841B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19539295.7 1995-10-23
DE19539295A DE19539295A1 (de) 1995-10-23 1995-10-23 Verfahren zur kontinuierlichen destillativen Auftrennung von flüssigen Gemischen, die als Hauptbestandteil (Meth)acrylsäure enthalten

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KR970020137A true KR970020137A (ko) 1997-05-28
KR100464841B1 KR100464841B1 (ko) 2005-04-06

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US (1) US5897749A (ko)
JP (1) JP3881734B2 (ko)
KR (1) KR100464841B1 (ko)
CN (1) CN1092180C (ko)
CA (1) CA2188589A1 (ko)
CZ (1) CZ293249B6 (ko)
DE (1) DE19539295A1 (ko)
MX (1) MX9605009A (ko)
MY (1) MY116014A (ko)
SG (1) SG43425A1 (ko)

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JP5811410B2 (ja) 2009-03-19 2015-11-11 エルジー・ケム・リミテッド 高純度のアクリル酸生産のための分離壁型蒸留塔及びこれを利用した分別蒸留方法
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Publication number Publication date
SG43425A1 (en) 1997-10-17
MY116014A (en) 2003-10-31
KR100464841B1 (ko) 2005-04-06
CA2188589A1 (en) 1997-04-24
CN1151394A (zh) 1997-06-11
JP3881734B2 (ja) 2007-02-14
MX9605009A (es) 1997-04-30
JPH09110778A (ja) 1997-04-28
CN1092180C (zh) 2002-10-09
US5897749A (en) 1999-04-27
CZ293249B6 (cs) 2004-03-17
CZ305096A3 (cs) 1998-04-15
DE19539295A1 (de) 1997-04-24

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