BR0211582A - Processo para preparar resinas absorventes de água - Google Patents

Processo para preparar resinas absorventes de água

Info

Publication number
BR0211582A
BR0211582A BR0211582-4A BR0211582A BR0211582A BR 0211582 A BR0211582 A BR 0211582A BR 0211582 A BR0211582 A BR 0211582A BR 0211582 A BR0211582 A BR 0211582A
Authority
BR
Brazil
Prior art keywords
acrylic acid
crude
separation
reaction gases
water absorbing
Prior art date
Application number
BR0211582-4A
Other languages
English (en)
Other versions
BR0211582B1 (pt
Inventor
Eberhard Fuchs
Hans Martan
Gerhard Nestler
Klaus Joachim M Ller-Engel
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Publication of BR0211582A publication Critical patent/BR0211582A/pt
Publication of BR0211582B1 publication Critical patent/BR0211582B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/215—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of saturated hydrocarbyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/23—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups
    • C07C51/235—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups of —CHO groups or primary alcohol groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
    • 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
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

"PROCESSO PARA PREPARAR RESINAS ABSORVENTES DE áGUA". A invenção diz respeito a um método para produzir resinas absorventes de água com base em ácido acrílico. O ácido acrílico bruto é primeiro isolado dos gases de reação da reação de fase gasosa catalítica de propano, propeno e/ou acroleína. O dito ácido acrílico bruto é tratado com um removedor de aldeído e o ácido acrílico puro é separado por meio de destilação do ácido acrílico bruto tratado. O ácido acrílico puro pode depois ser submetido imediatamente à polimerização de radical.
BRPI0211582-4A 2001-08-03 2002-08-02 processo para preparar resinas absorventes de água. BR0211582B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10138150.6 2001-08-03
DE10138150A DE10138150A1 (de) 2001-08-03 2001-08-03 Verfahren zur Herstellung wasserabsorbierender Harze
PCT/EP2002/008646 WO2003014172A2 (de) 2001-08-03 2002-08-02 Verfahren zur herstellung wasserabsorbierender harze

Publications (2)

Publication Number Publication Date
BR0211582A true BR0211582A (pt) 2004-07-13
BR0211582B1 BR0211582B1 (pt) 2012-11-27

Family

ID=7694285

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0211582-4A BR0211582B1 (pt) 2001-08-03 2002-08-02 processo para preparar resinas absorventes de água.

Country Status (8)

Country Link
US (1) US7179875B2 (pt)
EP (1) EP1417164B1 (pt)
CN (1) CN1264796C (pt)
AT (1) ATE486836T1 (pt)
BR (1) BR0211582B1 (pt)
DE (2) DE10138150A1 (pt)
MY (1) MY131004A (pt)
WO (1) WO2003014172A2 (pt)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257449A1 (de) * 2002-12-09 2003-11-06 Basf Ag Verfahren zur Herstellung geruchsarmer Hydrogel-bildender Polymerisate
DE102004034316B4 (de) * 2004-07-15 2015-07-16 Evonik Degussa Gmbh Ein Verfahren zur Herstellung von (Meth)Acrylsäure
DE102005005439A1 (de) * 2005-02-08 2006-08-17 Stockhausen Gmbh Verfahren zur Rückgewinnung von organischer Verbindungen von (Meth)Acrylsäurehaltigen Gemischen durch Extraktion mit einem protischen Lösungsmittel
TWI522092B (zh) * 2005-02-28 2016-02-21 贏創德固賽有限責任公司 丙烯酸和基於可再生原料之吸水聚合物結構及二者之製備方法
TWI529181B (zh) 2005-02-28 2016-04-11 贏創德固賽有限責任公司 以可更新原料為基之吸水聚合物結構及其生產的方法
TWI344469B (en) 2005-04-07 2011-07-01 Nippon Catalytic Chem Ind Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin
US8481664B2 (en) 2005-04-12 2013-07-09 Nippon Shokubai Co., Ltd. Particulate water absorbing agent including polyacrylic acid (polyacrylate) based water absorbing resin as a principal component, method for production thereof, water-absorbent core and absorbing article in which the particulate water absorbing agent is used
US20090068440A1 (en) * 2005-06-20 2009-03-12 Gunther Bub Production of acrolein, acrylic acid and water-absorbent polymer structures made from glycerine
US7649112B2 (en) * 2005-07-25 2010-01-19 Saudi Basic Industries Corporation Integrated plant for producing 2-ethyl-hexanol and methacrylic acid and a method based thereon
DE102005039156B4 (de) * 2005-08-17 2014-12-24 Evonik Degussa Gmbh Verfahren zur Herstellung von (Meth)Acrylsäure mit Schwersiedeaufarbeitung durch Kristallisation
DE102005048818A1 (de) 2005-10-10 2007-04-12 Degussa Ag Mikrobiologische Herstellung von 3-Hydroxypropionsäure
TWI394789B (zh) 2005-12-22 2013-05-01 Nippon Catalytic Chem Ind 吸水性樹脂組成物及其製造方法、吸收性物品
EP1837348B9 (en) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Water-absorbing resin and method for manufacturing the same
WO2008013078A1 (en) * 2006-07-24 2008-01-31 Sumitomo Seika Chemicals Co., Ltd. Process for production of water-absorbable resin
DE102006039205A1 (de) 2006-08-22 2008-03-20 Stockhausen Gmbh Auf nachwachsenden Rohstoffen basierende Acrylsäure und wasserabsorbierende Polymergebilde sowie Verfahren zu deren Herstellung mittels Dehydratisierung
DE102006049939A1 (de) 2006-10-19 2008-04-24 Basf Ag Verfahren zur Trennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure enthaltener Acrylsäure und Benzoesäure
JP2008115103A (ja) * 2006-11-02 2008-05-22 Nippon Shokubai Co Ltd アクリル酸の製造方法、アクリル酸製造用装置、およびアクリル酸製造用組成物
DE102007055086A1 (de) 2007-11-16 2009-05-20 Basf Se Verfahren zur Herstellung von Acrylsäure
DE102007004960A1 (de) 2007-01-26 2008-07-31 Basf Se Verfahren zur Herstellung von Acrylsäure
WO2008133121A1 (ja) * 2007-04-17 2008-11-06 Arkray, Inc. 基質濃度測定方法および基質濃度測定装置
US20090149954A1 (en) * 2007-12-07 2009-06-11 Xianbo Hu Bone substitute
EP2085376B1 (en) 2008-01-30 2012-09-05 Evonik Röhm GmbH Process for preparation of high purity methacrylic acid
US9457048B2 (en) * 2008-02-05 2016-10-04 Wellosophy Corporation Absorbent ingestible agents and associated methods of manufacture and use
DE102008002715A1 (de) 2008-06-27 2009-12-31 Evonik Röhm Gmbh 2-Hydroxyisobuttersäure produzierende rekombinante Zelle
US8257558B2 (en) 2008-07-31 2012-09-04 Dow Technology Investments Llc Alkylene oxide purification systems
CA2731936C (en) * 2008-07-31 2016-08-16 Dow Technology Investments Llc Alkylene oxide recovery systems
CN102112531B (zh) * 2008-07-31 2013-05-01 巴斯夫欧洲公司 颜色稳定的超吸收剂
FR2935971B1 (fr) 2008-09-16 2010-11-19 Arkema France Acide bio-acrylique de grade polymere et son procede de fabrication a partir de glycerol.
DE102008060888A1 (de) 2008-12-09 2010-06-10 Evonik Stockhausen Gmbh Verfahren zur Herstellung von Acrolein umfassend die Aufarbeitung einer Rohglycerin-Phase
SG172273A1 (en) * 2008-12-26 2011-07-28 Nippon Catalytic Chem Ind Process for producing acrylic acid
WO2011000808A2 (de) 2009-07-01 2011-01-06 Basf Se Verfahren der abtrennung von acrylsäure aus dem produktgasgemisch einer heterogen katalysierten partiellen gasphasenoxidation wenigstens einer c3-vorläuferverbindung
DE102009027401A1 (de) 2009-07-01 2010-02-18 Basf Se Verfahren der Abtrennung von Acrylsäure aus dem Produktgasgemisch einer heterogen katalysierten partiellen Gasphasenoxidation wenigstens einer C3-Vorläuferverbindung
DE102010001228A1 (de) 2010-01-26 2011-02-17 Basf Se Verfahren der Abtrennung von Acrylsäure aus dem Produktgasgemisch einer heterogen katalysierten partiellen Gasphasenoxidation wenigstens einer C3-Vorläuferverbindung
BR112012005901A2 (pt) 2009-09-16 2019-09-24 Basf Se superabsorvente, processo para produzir um superabsorvente, artigo para absorver fluidos, e, processo para produzir artigos para absorver fluidos
EP2477664A1 (de) 2009-09-17 2012-07-25 Basf Se Farbstabiler superabsorber
EP2484439B1 (en) 2009-09-29 2022-12-14 Nippon Shokubai Co., Ltd. Particulate water absorbent and process for production thereof
WO2011061125A2 (de) * 2009-11-23 2011-05-26 Basf Se Verfahren zur herstellung wasserabsorbierender polymerpartikel mit verbesserter farbstabilität
US8703876B2 (en) * 2010-03-15 2014-04-22 Basf Se Process for producing water absorbing polymer particles with improved color stability
FR2957594B1 (fr) * 2010-03-18 2013-04-26 Arkema France Procede de fabrication d'acide acrylique bio-ressource de grade polymere a partir de glycerol
DE102010028781A1 (de) * 2010-05-10 2011-11-10 Evonik Stockhausen Gmbh Abtrennung von Acrylsäure mittels einer einen Seitenabzug aufweisenden Destillationskolonne
JP5766283B2 (ja) 2010-06-14 2015-08-19 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 改善された色安定性を有する吸水性ポリマー粒子
DE102011076931A1 (de) * 2011-06-03 2012-12-06 Basf Se Wässrige Lösung, enthaltend Acrylsäure und deren konjugierte Base
US20130274520A1 (en) 2012-04-11 2013-10-17 The Procter & Gamble Company Purification Of Bio Based Acrylic Acid To Crude And Glacial Acrylic Acid
WO2013163806A1 (en) 2012-05-03 2013-11-07 Evonik Industries Ag Process for preparation of highly pure, non-yellowing methacrylic acid
BR112014030203B1 (pt) 2012-06-08 2021-10-13 Cj Cheiljedang Corporation Processo para produção de produtos de ácido acrílico de base biológica
CN104736620A (zh) * 2012-10-24 2015-06-24 赢创德固赛有限公司 气味和颜色稳定的吸水组合物
EP2922580B1 (de) * 2012-11-26 2016-11-16 Basf Se Verfahren zur herstellung von superabsorbern auf basis nachwachsender rohstoffe
JP6441211B2 (ja) * 2013-03-11 2018-12-19 住友精化株式会社 吸水性樹脂の製造装置
WO2016162175A1 (de) * 2015-04-07 2016-10-13 Basf Se Verfahren zur dehydratisierung von 3-hydroxypropionsäure zu acrylsäure
US9776940B2 (en) 2015-08-07 2017-10-03 Basf Se Process for production of acrylic acid
EP3880357A1 (en) * 2018-11-14 2021-09-22 Basf Se Process for producing superabsorbents
CN113769699B (zh) * 2021-09-22 2022-10-21 安徽蓝科新材料有限公司 一种耐热丙烯酸脂树脂单体的制备设备及方法
WO2024146794A1 (de) * 2023-01-05 2024-07-11 Basf Se Verfahren zur herstellung von superabsorbern

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241714A1 (de) * 1972-08-24 1974-03-28 Basf Ag Verfahren zur abtrennung von acrylsaeure aus den reaktionsgasen der propylenoder acroleinoxydation
DE3641996A1 (de) * 1986-12-09 1988-06-16 Basf Ag Verfahren zum abtrennen von aldehyden aus (alpha),(beta)-olefinisch ungesaettigten carbonsaeuren
DE4308087C2 (de) * 1993-03-13 1997-02-06 Basf Ag Verfahren zur Abtrennung von Acrylsäure aus den Reaktionsgasen der katalytischen Oxidation von Propylen und/oder Acrolein
DE4335172A1 (de) * 1993-10-15 1995-04-20 Basf Ag Verfahren zur Reinigung von Roh-(Meth)acrylsäure
US5759358A (en) * 1994-05-31 1998-06-02 Rohm And Haas Company Process for pure grade acrylic acid
US5482597A (en) * 1994-11-23 1996-01-09 Basf Aktiengesellschaft Purification of crude (meth)acrylic acid
US5961790A (en) * 1994-12-14 1999-10-05 Basf Aktiengesellschaft Separation of (meth) acrylic acid by rectification
FR2730732B1 (fr) 1995-02-17 1997-04-30 Atochem Elf Sa Procede de valorisation, sous la forme d'un ester, de l'acide acetique contenu dans les fractions legeres de purification de l'acide acrylique
FR2736912B1 (fr) 1995-07-18 1997-08-22 Atochem Elf Sa Procede de purification de l'acide acrylique obtenu par oxydation catalytique du propylene
DE19600955A1 (de) * 1996-01-12 1997-07-17 Basf Ag Verfahren zur Herstellung von Acrylsäure und deren Ester
DE19634614A1 (de) * 1996-08-27 1998-03-05 Basf Ag Verfahren zur destillativen Abtrennung von Rein-(Meth)acrylsäure aus Gemischen, die im wesentlichen frei sind von Komponenten, deren Siedepunkt niedriger als der der (Meth)acrylsäure ist
FR2753445B1 (fr) * 1996-09-16 1998-10-30 Atochem Elf Sa Procede perfectionne de purification de l'acide acrylique
US6518452B1 (en) * 1997-08-07 2003-02-11 Basf Aktiengesellschaft Process for stabilizing (METH)acrylic acid esters against unwanted radical polymerization
DE19746689A1 (de) * 1997-10-22 1999-04-29 Basf Ag Verfahren zur Herstellung von (Meth)acrylsäure
US6444744B1 (en) * 1998-03-11 2002-09-03 Nippon Shokubai Co., Ltd. Hydrophilic resin, absorbent article, and acrylic acid for polymerization
MY122671A (en) * 1999-03-06 2006-04-29 Basf Ag Fractional condensation of a product gas mixture containing acrylic acid
EP1163201B1 (de) * 1999-03-06 2003-08-20 Basf Aktiengesellschaft Verfahren zur herstellung von acrylsäure
JP3948855B2 (ja) * 1999-06-10 2007-07-25 株式会社日本触媒 （メタ）アクリル酸の製造方法
DE19955168A1 (de) * 1999-11-16 2001-05-17 Basf Ag Verfahren der katalytischen Gasphasenoxidation von Propen zu Acrylsäure

Also Published As

Publication number Publication date
WO2003014172A3 (de) 2003-11-27
CN1264796C (zh) 2006-07-19
MY131004A (en) 2007-07-31
CN1538948A (zh) 2004-10-20
WO2003014172A2 (de) 2003-02-20
US7179875B2 (en) 2007-02-20
EP1417164A2 (de) 2004-05-12
DE10138150A1 (de) 2003-02-13
BR0211582B1 (pt) 2012-11-27
EP1417164B1 (de) 2010-11-03
ATE486836T1 (de) 2010-11-15
US20040236049A1 (en) 2004-11-25
DE50214752D1 (de) 2010-12-16

Similar Documents

Publication Publication Date Title
BR0211582A (pt) Processo para preparar resinas absorventes de água
BR0111702A (pt) Processo para a preparação de acroleìna e/ou ácido acrìlico a partir de propano e/ou propeno
DE50105418D1 (de) Verfahren zur umsetzung einer organischen verbindung mit einem hydroperoxid
BR0209297A (pt) Processo para a preparação de ácido acrìlico pela oxidação parcial heterogeneamente catalisada de propano na fase gasosa
DE50103645D1 (de) Verfahren zur herstellung von acrolein oder acrylsäure oder deren gemisch aus propan
ATE468315T1 (de) Verfahren zur herstellung von (meth)acrylsäure
ATE463472T1 (de) Verfahren zur herstellung von olefinen
BRPI0908521A2 (pt) processo para preparar (met) acrilatos de misturas de álcool, e, usos de (met) acrilatos de misturas de álcool e de dispersões
KR960022433A (ko) 주성분으로서 (메타) 아크릴산 및 (메타) 아크릴산 보다 높은 비점을 가지는 비활성 소수성 유기 액체를 포함하며, 부성분으로서 저급 알데히드를 포함하는 혼합물로부터 (메타) 아크릴산을 정류하는 방법
JP5538214B2 (ja) 酸化によるメタクリル酸の製造における原料組成物の使用
RU2012111226A (ru) Способ и устройство для получения алкиленоксидов и алкиленгликолей
DE50100187D1 (de) Verfahren zur katalytischen gasphasenoxidation zu maleinsäureanhydrid
RU2016104904A (ru) Рециркуляция и утилизация водных растворов катализаторов в аминных каталитических процессах
ATE354560T1 (de) Verfahren zur aufreinigung von durch oxidieren eines gasförmigen substrats erhaltener (meth)acrylsäure
DK1805162T3 (da) Fremgangsmåde til fremstilling af trioxan
RU2009120385A (ru) Способ получения водной (мет) акриловой кислоты
DE60320945D1 (de) Verfahren zur reinigung von acrolein
DE60216117T8 (de) Verfahren zur herstellung von hexafluoraceton und dessen hydrat
RU2028287C1 (ru) Способ совместного получения пирокатехина и гидрохинона
ATE486653T1 (de) Verfahren zur herstellung von acrylsäure mit partialoxidation von propan zu propylen
RU2001108887A (ru) Способ получения изопрена
WO2001094014A1 (fr) Procede de preparation de lit fixe de resine acide echangeuse de cations
JPS55129239A (en) Purification of methacrylic acid
JPS5636425A (en) Preparation of acetaldehyde dimethyl acetal
JP6455318B2 (ja) 液体の処理方法及びアクリロニトリル又はメタアクリロニトリルの製造方法

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: ALTERADA INT.CI. C07C 51/25, C07C 51/215, C07C 51/235, C07C 51/43, C07C 51/487, C07C 51/44, C07C 57/05, C07C 57/07, C07C 57/075, C08F 220/00

Ipc: C07C 51/487 (2006.01), C07C 51/235 (2006.01), C07C

B07B Technical examination (opinion): publication cancelled [chapter 7.2 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 27/11/2012, MEDIANTE O RECOLHIMENTO DA TAXA QUINQUENAL DE MANUTENCAO (ARTIGOS 119 E 120 DA LPI) E OBSERVADAS AS DEMAIS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2473 DE 29-05-2018 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.