BRPI0810143A2 - Processo para começar uma oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico ou de metacroleína para ácido metacrílico em um leito de catalisador fixo - Google Patents

Processo para começar uma oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico ou de metacroleína para ácido metacrílico em um leito de catalisador fixo

Info

Publication number
BRPI0810143A2
BRPI0810143A2 BRPI0810143-4A2A BRPI0810143A BRPI0810143A2 BR PI0810143 A2 BRPI0810143 A2 BR PI0810143A2 BR PI0810143 A BRPI0810143 A BR PI0810143A BR PI0810143 A2 BRPI0810143 A2 BR PI0810143A2
Authority
BR
Brazil
Prior art keywords
reactor
reaction tubes
tube
methacrylic acid
reaction
Prior art date
Application number
BRPI0810143-4A2A
Other languages
English (en)
Inventor
Ulrich Hammon
Thorsten Friese
Jochen Petzoldt
Klaus Joachim Mueller-Engel
Ulrich Cremer
Andreas Raichle
Original Assignee
Basf Se
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 Se filed Critical Basf Se
Publication of BRPI0810143A2 publication Critical patent/BRPI0810143A2/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • B01J8/067—Heating or cooling the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/888—Tungsten
    • B01J23/8885—Tungsten containing also molybdenum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
    • B01J27/198—Vanadium
    • B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00212—Plates; Jackets; Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00212—Plates; Jackets; Cylinders
    • B01J2208/00221—Plates; Jackets; Cylinders comprising baffles for guiding the flow of the heat exchange medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00513—Controlling the temperature using inert heat absorbing solids in the bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/02—Processes carried out in the presence of solid particles; Reactors therefor with stationary particles
    • B01J2208/023—Details
    • B01J2208/024—Particulate material
    • B01J2208/025—Two or more types of catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30207—Sphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30215—Toroid or ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
BRPI0810143-4A2A 2007-04-24 2008-04-18 Processo para começar uma oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico ou de metacroleína para ácido metacrílico em um leito de catalisador fixo BRPI0810143A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US90795407P 2007-04-24 2007-04-24
DE102007019597A DE102007019597A1 (de) 2007-04-24 2007-04-24 Verfahren der Inbetriebnahme einer heterogen katalysierten partiellen Gasphasenoxidation von Acrolein zu Acrylsäure oder von Methacrolein zu Methacrylsäure
PCT/EP2008/054720 WO2008128988A2 (de) 2007-04-24 2008-04-18 Verfahren der inbetriebnahme einer heterogen katalysierten partiellen gasphasenoxidation von acrolein zu acrylsäure oder von methacrolein zu methacrylsäure

Publications (1)

Publication Number Publication Date
BRPI0810143A2 true BRPI0810143A2 (pt) 2014-10-29

Family

ID=39277795

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0810143-4A2A BRPI0810143A2 (pt) 2007-04-24 2008-04-18 Processo para começar uma oxidação em fase gasosa parcial heterogeneamente catalisada de acroleína para ácido acrílico ou de metacroleína para ácido metacrílico em um leito de catalisador fixo

Country Status (9)

Country Link
US (1) US8076510B2 (pt)
EP (1) EP2150518B1 (pt)
JP (1) JP5295221B2 (pt)
CN (1) CN101679182B (pt)
AT (1) ATE487687T1 (pt)
BR (1) BRPI0810143A2 (pt)
DE (2) DE102007019597A1 (pt)
RU (1) RU2479569C2 (pt)
WO (1) WO2008128988A2 (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025869A1 (de) 2007-06-01 2008-07-03 Basf Se Verfahren der Wiederbeschickung der Reaktionsrohre eines Rohrbündelreaktors mit einem neuen Katalysatorfestbett
DE102007028333A1 (de) 2007-06-15 2008-12-18 Basf Se Verfahren zum Einbringen einer wenigstens einer Produktionscharge von ringförmigen Schalenkatalysatoren K entnommenen Teilmenge in ein Reaktionsrohr eines Rohrbündelreaktors
DE102008041573A1 (de) 2008-08-26 2010-03-04 Basf Se Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enhaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal
DE102008040799A1 (de) 2008-07-28 2008-12-11 Basf Se Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enthaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal
JP2011529094A (ja) 2008-07-28 2011-12-01 ビーエーエスエフ ソシエタス・ヨーロピア アクリル酸のc3前駆体化合物のガス状生成混合物から主生成物として含有されるアクリル酸および副生成物として含有されるグリオキサールを分離する方法
WO2011102828A1 (en) * 2010-02-16 2011-08-25 Multi-Chem Group, Llc Method and apparatus for remotely monitoring acrolein temperature in storage tanks
DE102011076931A1 (de) 2011-06-03 2012-12-06 Basf Se Wässrige Lösung, enthaltend Acrylsäure und deren konjugierte Base
FR2975922B1 (fr) * 2011-06-06 2013-05-31 Arkema France Reacteur a plaques avec injection in situ
DE102012207811A1 (de) 2012-05-10 2012-07-12 Basf Se Verfahren der heterogen katalysierten Gasphasenpartialoxidation von (Meth)acrolein zu (Meth)acrylsäure
US9440903B2 (en) * 2012-09-24 2016-09-13 Arkema Inc. Shell and tube oxidation reactor with improved resistance to fouling
DE102013202048A1 (de) 2013-02-07 2013-04-18 Basf Se Verfahren zur Herstellung einer katalytisch aktiven Masse, die ein Gemisch aus einem die Elemente Mo und V enthaltenden Multielementoxid und wenigstens einem Oxid des Molybdäns ist
JP2017535643A (ja) 2014-11-03 2017-11-30 アーケマ・インコーポレイテッド ポリマーフレーク及び粉体の密度を高めるためのプロセス
ES2881297T3 (es) * 2017-02-10 2021-11-29 Technobell D O O Koper Reactor tubular de doble zona mejorado y método para llevar a cabo la producción de anhídrido maleico mediante la oxidación de n-butano
US12343708B2 (en) 2020-04-21 2025-07-01 Basf Se Method for producing a catalytically active multi-element oxide containing the elements Mo, W, V and Cu
US20240091756A1 (en) 2020-10-29 2024-03-21 Basf Se Method for producing a core-shell catalyst
US20240424466A1 (en) * 2021-06-16 2024-12-26 Basf Se Process for shutting-down and heating up a tubular reactor for a catalytic gas phase reaction
JP2025541831A (ja) 2022-12-07 2025-12-23 ベーアーエスエフ・エスエー 元素Mo、W、V、Cu、およびSbを含有する触媒活性多元素酸化物を製造するための方法
WO2025125092A1 (de) 2023-12-14 2025-06-19 Basf Se Verfahren zur herstellung eines die elemente mo, w, v, cu und sb enthaltenden katalytisch aktiven multielementoxids
WO2026017456A1 (de) 2024-07-15 2026-01-22 Basf Se Verfahren zur herstellung eines katalysators umfassend eine wasserbehandlung

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431949A1 (de) 1994-09-08 1995-03-16 Basf Ag Verfahren zur katalytischen Gasphasenoxidation von Acrolein zu Acrylsäure
JP3948837B2 (ja) * 1998-08-10 2007-07-25 株式会社日本触媒 アクリル酸の製造方法
JP3559456B2 (ja) 1998-09-18 2004-09-02 株式会社日本触媒 接触気相酸化方法及び多管式反応器
JP3486565B2 (ja) * 1998-12-25 2004-01-13 三菱レイヨン株式会社 メタクリル酸の製造方法
RU2285690C2 (ru) * 2000-06-20 2006-10-20 Басф Акциенгезельшафт Способ получения акролеина и/или акриловой кислоты
EP1460053A4 (en) 2001-12-27 2006-03-22 Mitsubishi Chem Corp VAPOR CATALYST OXIDATION PROCESS AND PROCESS FOR PRODUCING (METH) ACROLEIN OR (METH) ACRYLIC ACID
CN1607031A (zh) * 2001-12-28 2005-04-20 三菱化学株式会社 装填催化剂的方法
EP2361899B1 (en) * 2002-01-11 2015-07-22 Mitsubishi Chemical Corporation Vapor phase catalytic oxidation method using a multitube reactor of the heat-exchange type
CN1330618C (zh) * 2002-03-11 2007-08-08 三菱化学株式会社 催化气相氧化法
DE10232482A1 (de) * 2002-07-17 2004-01-29 Basf Ag Verfahren zum sicheren Betreiben einer kontinuierlichen heterogen katalysierten Gasphasen-Partialoxidation wenigstens einer organischen Verbindung
DE10313211A1 (de) 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Acrolein zu Acrylsäure
DE10313208A1 (de) 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Propen zu Acrylsäure
DE10313214A1 (de) * 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Acrolein zu Acrylsäure
DE10313213A1 (de) * 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Propen zu Acrylsäure
WO2004085365A2 (de) * 2003-03-25 2004-10-07 Basf Aktiengesellschaft Verfahren der heterogen katalysierten partiellen gasphasenoxidation von acrolein zu acrylsäure
KR101013249B1 (ko) * 2003-03-25 2011-02-09 바스프 에스이 아크릴산을 형성하기 위한 프로펜의 불균질 촉매화 부분기체상 산화 방법
KR101096355B1 (ko) * 2003-10-29 2011-12-20 바스프 에스이 아크릴산을 형성하기 위한 아크롤레인의 불균질 촉매된기체 상 부분 산화의 장기 수행 방법
DE10350822A1 (de) * 2003-10-29 2005-06-02 Basf Ag Verfahren zum Langzeitbetrieb einer heterogen katalysierten Gasphasenpartialoxidation von Acrolein zu Acrylsäure
JP4867129B2 (ja) * 2003-12-15 2012-02-01 三菱化学株式会社 (メタ)アクリル酸または(メタ)アクロレインの製造方法
DE102004025445A1 (de) 2004-05-19 2005-02-10 Basf Ag Verfahren zum Langzeitbetrieb einer heterogen katalysierten Gasphasenpartialoxidation wenigstens einer organischen Verbindung
US7414149B2 (en) 2004-11-22 2008-08-19 Rohm And Haas Company Non-routine reactor shutdown method
US7439389B2 (en) * 2005-03-01 2008-10-21 Basf Aktiengesellschaft Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
MY140309A (en) * 2005-03-01 2009-12-31 Basf Ag Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
EP1734030A1 (de) * 2006-01-18 2006-12-20 BASF Aktiengesellschaft Verfahren zum Langzeitbetrieb einer heterogen katalysierten partiellen Gasphasenoxidation einer organischen Ausgangsverbindung

Also Published As

Publication number Publication date
ATE487687T1 (de) 2010-11-15
EP2150518A2 (de) 2010-02-10
US20080269521A1 (en) 2008-10-30
WO2008128988A3 (de) 2008-12-11
CN101679182A (zh) 2010-03-24
CN101679182B (zh) 2013-05-22
WO2008128988A2 (de) 2008-10-30
EP2150518B1 (de) 2010-11-10
JP5295221B2 (ja) 2013-09-18
US8076510B2 (en) 2011-12-13
RU2009142960A (ru) 2011-05-27
DE102007019597A1 (de) 2008-05-15
DE502008001771D1 (de) 2010-12-23
RU2479569C2 (ru) 2013-04-20
JP2010525012A (ja) 2010-07-22

Similar Documents

Publication Publication Date Title
ATE487687T1 (de) Verfahren der inbetriebnahme einer heterogen katalysierten partiellen gasphasenoxidation von acrolein zu acrylsäure oder von methacrolein zu methacrylsäure
US20100069662A1 (en) Integrated process and apparatus for preparing esters of methacrylic acid from acetone and hydrocyanic acid
US20110178187A1 (en) Process and plant for producing methanol
US9637574B2 (en) Process and apparatus for preparing alkyl esters of methacrylic acid
NZ593390A (en) Process for the manufacturing of vinyl acetate
US8334399B2 (en) Method for producing acetone cyanohydrin and the subsequent products thereof by specific cooling
BR112013001672B1 (pt) A process for recovering malic acid from a gas-reaction mixture
CN103391914B (zh) 一种(甲基)丙烯酸的连续收集方法及收集装置
CN104220409B (zh) 由甘油制造丙烯醛和/或丙烯酸的方法
US8143434B2 (en) Production by distillation of acetone cyanhydrin and method for producing methacrylic ester and subsequent products
US8629191B2 (en) Process and plant for producing methanol
US8586779B2 (en) Method for producing methacrylic alkyl esters by way of azeotropic distillation
CN113416133B (zh) 连续化生产(甲基)丙烯酸多元醇酯的方法
RU2008134730A (ru) Способ снижения количества воды в отходящем газе реактора в процессе окисления ароматического соединения
US8129559B2 (en) Process for preparing cyanohydrins and their use in the preparation of alkyl esters of methacrylic acid
KR20180019611A (ko) 폐수 처리를 위한 반응성 증류를 위한 장치 및 방법
AU2002354452A1 (en) Process for producing (meth)acrolein or (meth)acrylic acid
CN209702624U (zh) 双反应器并联式甲醇合成反应系统
RU2426715C2 (ru) Способ и установка для гомогенного окисления метаносодержащего газа
CN109678659A (zh) 双反应器并联式甲醇合成反应系统
KR20220052985A (ko) 산화 처리를 통한 폐수 중 포름알데히드의 제거
AKMAN et al. DFT and experimental studies on synthesis of bisphenol a: Determination of optimal feed profile in semi-batch reactor
JP4218331B2 (ja) (メタ)アクリル酸類の製造方法
RU2540857C2 (ru) Способ окисления углеводородов кислородом
JP2008162956A (ja) (メタ)アクリル酸溶液を得るためのシステムおよび(メタ)アクリル酸の製造方法

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 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]