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BR0002891A - Processo para a preparação de ácido (met) acrìlico - Google Patents

Processo para a preparação de ácido (met) acrìlico

Info

Publication number
BR0002891A
BR0002891A BR0002891-6A BR0002891A BR0002891A BR 0002891 A BR0002891 A BR 0002891A BR 0002891 A BR0002891 A BR 0002891A BR 0002891 A BR0002891 A BR 0002891A
Authority
BR
Brazil
Prior art keywords
meth
preparation
acrylic acid
acrylic
acid
Prior art date
Application number
BR0002891-6A
Other languages
English (en)
Inventor
Chorng-Shyuan Tsay
Timothy Allen Hale
Robert Michael Mason
Josefina Tseng Chapman
James Clarence Day
Original Assignee
Rohm & Haas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohm & Haas filed Critical Rohm & Haas
Publication of BR0002891A publication Critical patent/BR0002891A/pt

Links

Classifications

    • 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
    • C07C51/42—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
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/50—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSO PARA A PREPARAçãO DE áCIDO (MET)ACRìLICO". Esta invenção refere-se a um processo para a preparação de ácido (met)acrílico, sendo que é utilizada diminuição da intensidade de funcionamento para manter desempenho ótimo da coluna de destilação na desidratação de ácido (met)acrílico aquoso para fornecer uma solução de ácido (met)acrílico.
BR0002891-6A 1999-06-28 2000-06-27 Processo para a preparação de ácido (met) acrìlico BR0002891A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14153499P 1999-06-28 1999-06-28

Publications (1)

Publication Number Publication Date
BR0002891A true BR0002891A (pt) 2001-01-30

Family

ID=22496110

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0002891-6A BR0002891A (pt) 1999-06-28 2000-06-27 Processo para a preparação de ácido (met) acrìlico

Country Status (8)

Country Link
US (1) US6500982B1 (pt)
EP (1) EP1065197B1 (pt)
JP (1) JP2001031624A (pt)
KR (1) KR100679210B1 (pt)
CN (1) CN1221513C (pt)
BR (1) BR0002891A (pt)
DE (1) DE60000708T2 (pt)
TW (1) TWI264433B (pt)

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US9964352B2 (en) 2012-03-21 2018-05-08 Exxonmobil Upstream Research Company Separating carbon dioxide and ethane from a mixed stream
US9718756B2 (en) 2013-07-23 2017-08-01 Lg Chem, Ltd. Method for continuously recovering (meth)acrylic acid and apparatus for the method
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AU2014357663B2 (en) 2013-12-06 2016-12-22 Exxonmobil Upstream Research Company Method and device for separating hydrocarbons and contaminants with a spray assembly
WO2015084496A2 (en) 2013-12-06 2015-06-11 Exxonmobil Upstream Research Company Method and device for separating a feed stream using radiation detectors
US9823016B2 (en) 2013-12-06 2017-11-21 Exxonmobil Upstream Research Company Method and system of modifying a liquid level during start-up operations
US9874395B2 (en) 2013-12-06 2018-01-23 Exxonmobil Upstream Research Company Method and system for preventing accumulation of solids in a distillation tower
EA031531B1 (ru) 2013-12-06 2019-01-31 Эксонмобил Апстрим Рисерч Компани Способ и устройство для разделения углеводородов и загрязняющих примесей с помощью нагревательного устройства для дестабилизации и/или предотвращения адгезии твердых веществ
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EP3207022B1 (en) 2014-10-14 2020-01-29 Ecolab USA Inc. Reducing polymer fouling and agglomeration in acrylate/methacrylate processes
AU2016223296B2 (en) 2015-02-27 2018-11-08 Exxonmobil Upstream Research Company Reducing refrigeration and dehydration load for a feed stream entering a cryogenic distillation process
RU2715559C2 (ru) 2015-03-18 2020-03-02 ЭКОЛАБ ЮЭсЭй ИНК. Применение стабильных липофильных соединений гидроксиламина для ингибирования полимеризации виниловых мономеров
US9957209B2 (en) 2015-03-31 2018-05-01 Ecolab Usa Inc. Use of quinone methides as antipolymerants for vinylic monomers
US10155705B2 (en) 2015-04-20 2018-12-18 Ecolab Usa Inc. Sterically hindered hydroquinones as antifoulants for unsaturated monomers
CN108026000B (zh) * 2015-09-07 2021-08-10 罗地亚经营管理公司 阻聚剂组合物的用途
CA2994812C (en) 2015-09-18 2020-03-10 Exxonmobil Upstream Research Company Heating component to reduce solidification in a cryogenic distillation system
US11255603B2 (en) 2015-09-24 2022-02-22 Exxonmobil Upstream Research Company Treatment plant for hydrocarbon gas having variable contaminant levels
DE202015106097U1 (de) * 2015-11-11 2016-02-01 Holger Blum Fördereinrichtung für eine Vakuumdestillationsanlage
WO2017137348A1 (de) 2016-02-08 2017-08-17 Basf Se Polymerisationsinhibierte wässrige acrylsäurelösungen
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CN108689833B (zh) * 2018-06-01 2021-03-16 安徽恒星制药有限公司 一种稳定的高纯度乳酸制备方法
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US11306267B2 (en) 2018-06-29 2022-04-19 Exxonmobil Upstream Research Company Hybrid tray for introducing a low CO2 feed stream into a distillation tower
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JP3312566B2 (ja) * 1996-10-23 2002-08-12 住友化学工業株式会社 アクリル酸からの酢酸の分離方法
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Also Published As

Publication number Publication date
KR20010049654A (ko) 2001-06-15
EP1065197B1 (en) 2002-11-06
EP1065197A1 (en) 2001-01-03
TWI264433B (en) 2006-10-21
CN1221513C (zh) 2005-10-05
US6500982B1 (en) 2002-12-31
DE60000708T2 (de) 2003-07-24
DE60000708D1 (de) 2002-12-12
CN1287113A (zh) 2001-03-14
KR100679210B1 (ko) 2007-02-07
JP2001031624A (ja) 2001-02-06

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