NL170620C - Werkwijze voor de bereiding van methacroleine en methacrylzuur door oxydatie van tert-butylalcohol in de gasfase en werkwijze voor de bereiding van de hierbij te gebruiken katalysator. - Google Patents

Werkwijze voor de bereiding van methacroleine en methacrylzuur door oxydatie van tert-butylalcohol in de gasfase en werkwijze voor de bereiding van de hierbij te gebruiken katalysator.

Info

Publication number
NL170620C
NL170620C NLAANVRAGE7407755,A NL7407755A NL170620C NL 170620 C NL170620 C NL 170620C NL 7407755 A NL7407755 A NL 7407755A NL 170620 C NL170620 C NL 170620C
Authority
NL
Netherlands
Prior art keywords
methacrolein
tert
oxidation
catalyst
preparing
Prior art date
Application number
NLAANVRAGE7407755,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7407755A (xx
NL170620B (nl
Inventor
Hiromichi Ishii
Hideo Matsuzawa
Masao Kobayashi
Kantaro Yamada
Original Assignee
Mitsubishi Rayon Co
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
Priority claimed from JP6556373A external-priority patent/JPS5324403B2/ja
Priority claimed from JP9634573A external-priority patent/JPS535651B2/ja
Priority claimed from JP14211873A external-priority patent/JPS5310964B2/ja
Priority claimed from JP14400073A external-priority patent/JPS5320964B2/ja
Application filed by Mitsubishi Rayon Co filed Critical Mitsubishi Rayon Co
Publication of NL7407755A publication Critical patent/NL7407755A/xx
Priority to NLAANVRAGE8201476,A priority Critical patent/NL174643C/xx
Publication of NL170620B publication Critical patent/NL170620B/xx
Application granted granted Critical
Publication of NL170620C publication Critical patent/NL170620C/xx

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
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8872—Alkali or alkaline earth metals
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8871—Rare earth metals or actinides
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8875—Germanium, tin or lead
    • 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
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8876—Arsenic, antimony or bismuth
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
    • C07C5/48—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with oxygen as an acceptor
    • 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
    • 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)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
NLAANVRAGE7407755,A 1973-06-11 1974-06-11 Werkwijze voor de bereiding van methacroleine en methacrylzuur door oxydatie van tert-butylalcohol in de gasfase en werkwijze voor de bereiding van de hierbij te gebruiken katalysator. NL170620C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE8201476,A NL174643C (nl) 1973-06-11 1982-04-07 Werkwijzen voor de katalytische oxydatie van propeen en/of isobuteen tot respectievelijk mengsels van acroleine en acrylzuur en/of methacroleine en methacrylzuur en voor de katalytische dehydrogenering van 1-buteen tot 1,3-butadieen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6556373A JPS5324403B2 (xx) 1973-06-11 1973-06-11
JP9634573A JPS535651B2 (xx) 1973-08-28 1973-08-28
JP14211873A JPS5310964B2 (xx) 1973-12-18 1973-12-18
JP14400073A JPS5320964B2 (xx) 1973-12-26 1973-12-26

Publications (3)

Publication Number Publication Date
NL7407755A NL7407755A (xx) 1974-12-13
NL170620B NL170620B (nl) 1982-07-01
NL170620C true NL170620C (nl) 1982-12-01

Family

ID=27464592

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7407755,A NL170620C (nl) 1973-06-11 1974-06-11 Werkwijze voor de bereiding van methacroleine en methacrylzuur door oxydatie van tert-butylalcohol in de gasfase en werkwijze voor de bereiding van de hierbij te gebruiken katalysator.

Country Status (5)

Country Link
US (1) US3972920A (xx)
DE (1) DE2427670C3 (xx)
FR (1) FR2232524B1 (xx)
GB (1) GB1444659A (xx)
NL (1) NL170620C (xx)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111984A (en) * 1973-06-11 1978-09-05 Mitsubishi Rayon Co., Ltd. Process for producing unsaturated aldehydes, and unsaturated fatty acids
GB1523772A (en) * 1974-07-22 1978-09-06 Standard Oil Co Oxidation catalysts
US4162234A (en) * 1974-07-22 1979-07-24 The Standard Oil Company Oxidation catalysts
US4778930A (en) * 1974-08-05 1988-10-18 The Standard Oil Company Process for the oxidation of olefins using catalysts contaning antimony
GB1490683A (en) * 1975-03-12 1977-11-02 Mitsubishi Rayon Co Process and a catalyst for producing unsaturated aldehydes unsaturated carboxylic acids or conjugated diene
US4065507A (en) * 1976-08-02 1977-12-27 Standard Oil Company Preparation of methacrylic derivatives from tertiary butyl-containing compounds
IL55073A (en) * 1977-07-28 1982-01-31 Standard Oil Co Catalysts for the oxidation and ammoxidation of olefins
CA1133505A (en) * 1977-07-28 1982-10-12 Andrew T. Guttmann Process for the oxidation of olefins
US4167494A (en) * 1977-08-21 1979-09-11 The Standard Oil Company Production of unsaturated nitriles using catalysts containing boron, gallium or indium
US4191710A (en) * 1977-09-06 1980-03-04 Halcon Research And Development Corp. Treatment of methacrolein-containing gases
US4092132A (en) * 1977-09-06 1978-05-30 Halcon Research And Development Corp. Recovery of methacrolein
US4413155A (en) * 1977-12-20 1983-11-01 The Standard Oil Co. Ammoxidation of olefins with novel antimonate catalysts
US4234519A (en) * 1979-01-26 1980-11-18 Halcon Research And Development Corp. Recovery of methacrolein
US4280928A (en) * 1979-10-12 1981-07-28 Rohm And Haas Company Catalyst compositions and their use for the preparation of methacrolein
US4306090A (en) * 1979-10-12 1981-12-15 Rohm And Haas Company Catalyst compositions and their use for the preparation of methacrolein
GB2077257B (en) * 1980-05-19 1984-06-27 Asahi Chemical Ind Process for producing methacrolein
EP0058046B1 (en) * 1981-02-05 1984-08-01 Ube Industries, Ltd. Process for producing methacrolein and methacrylic acid
US4537874A (en) * 1982-10-22 1985-08-27 Nippon Shokubai Kagaku Kogyo Co Ltd Catalyst for production of unsaturated aldehydes
US5208371A (en) * 1986-11-11 1993-05-04 Mitsubishi Rayon Co., Ltd. Process for production of methacrolein and methacrylic acid
JP2841324B2 (ja) * 1990-06-06 1998-12-24 三井化学株式会社 メタクロレインの製造方法
DE69109746T2 (de) * 1990-06-06 1995-10-26 Mitsui Toatsu Chemicals Verfahren zur Herstellung von Acrolein oder Methacrolein.
JP3943311B2 (ja) 2000-05-19 2007-07-11 株式会社日本触媒 不飽和アルデヒドおよび不飽和カルボン酸の製造方法
ZA200200049B (en) 2001-01-25 2002-07-16 Nippon Catalytic Chem Ind Fixed-bed shell-and-tube reactor and its usage.
JP4242597B2 (ja) * 2002-02-28 2009-03-25 株式会社日本触媒 不飽和アルデヒド合成用触媒とその製造方法、およびその触媒を用いた不飽和アルデヒドの製造方法
US7732367B2 (en) 2005-07-25 2010-06-08 Saudi Basic Industries Corporation Catalyst for methacrolein oxidation and method for making and using same
US7649111B2 (en) 2005-07-25 2010-01-19 Saudi Basic Industries Corporation Catalyst for the oxidation of a mixed aldehyde feedstock to methacrylic acid and methods for making and using same
US7851397B2 (en) 2005-07-25 2010-12-14 Saudi Basic Industries Corporation Catalyst for methacrolein oxidation and method for making and using same
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
JP2011121048A (ja) * 2009-12-09 2011-06-23 Rohm & Haas Co 固体触媒物質をブレンドし、管状構造物に装填する方法
US8921257B2 (en) 2011-12-02 2014-12-30 Saudi Basic Industries Corporation Dual function partial oxidation catalyst for propane to acrylic acid conversion
US8722940B2 (en) 2012-03-01 2014-05-13 Saudi Basic Industries Corporation High molybdenum mixed metal oxide catalysts for the production of unsaturated aldehydes from olefins
WO2014182026A1 (ko) * 2013-05-06 2014-11-13 (주) 엘지화학 부타디엔 제조를 위한 산화촉매 및 그 제조방법
KR101495478B1 (ko) 2013-05-06 2015-02-23 주식회사 엘지화학 부타디엔 제조를 위한 산화촉매 및 그 제조방법
RU2552984C1 (ru) * 2014-01-17 2015-06-10 Общество С Ограниченной Ответственностью "Научно-Производственная Компания "Синтез" Катализатор получения бутадиена-1,3 и способ получения бутадиена-1,3 с использованием катализатора

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470239A (en) * 1968-06-07 1969-09-30 Halcon International Inc Process for preparing methacrylic acid and its esters from isobutane
US3642930A (en) * 1968-12-30 1972-02-15 Standard Oil Co Ohio Process for the manufacture of isoprene from isoamylenes and methyl butanols and catalyst therefor
DE2000425A1 (de) * 1969-01-11 1970-07-16 Toa Gosei Chem Ind Verfahren zur Oxydation von Olefinen
JPS4817253B1 (xx) * 1970-11-07 1973-05-28
JPS494441B1 (xx) * 1970-11-07 1974-02-01
JPS5112603B1 (xx) * 1971-05-26 1976-04-21
US3892794A (en) * 1972-02-09 1975-07-01 Standard Oil Co Process for the manufacture of unsaturated aldehydes acids and nitriles from the corresponding olefins

Also Published As

Publication number Publication date
FR2232524B1 (xx) 1976-06-25
FR2232524A1 (xx) 1975-01-03
NL7407755A (xx) 1974-12-13
GB1444659A (en) 1976-08-04
US3972920A (en) 1976-08-03
NL170620B (nl) 1982-07-01
DE2427670C3 (de) 1982-01-14
DE2427670A1 (de) 1975-01-02
DE2427670B2 (de) 1981-04-02

Similar Documents

Publication Publication Date Title
NL170620C (nl) Werkwijze voor de bereiding van methacroleine en methacrylzuur door oxydatie van tert-butylalcohol in de gasfase en werkwijze voor de bereiding van de hierbij te gebruiken katalysator.
NL172828C (nl) Werkwijze voor het bereiden van katalysatoren voor de oxydatie van onverzadigde aldehyden tot onverzadigde carbonzuren en aldus gevormde katalysator.
NL7412136A (nl) Katalysator op drager voor de oxydatie van methanol tot formaldehyde en werkwijze voor zijn bereiding.
NL179725B (nl) Werkwijze voor het bereiden en/of vervaardigen van een farmaceutisch preparaat voor de behandeling van hyperlipidemia bij warmbloedigen op basis van een benzoezuurderivaat; werkwijze voor het bereiden van een daarbij te gebruiken benzoezuurderivaat.
NL152840B (nl) Werkwijze voor de bereiding van acrylzuur door katalytische oxydatie van acroleine.
NL7507409A (nl) Werkwijze voor het bereiden van alcoholen door een direkte katalytische hydratatie van alkenen.
NL172303C (nl) Werkwijze voor de bereiding van een als katalysator te gebruiken rutheniumverbinding.
NL168819C (nl) Werkwijze voor het bereiden van methacrylzuur door katalytische oxydatie van methacroleien en werkwijze voor het bereiden van een oxydische fosfor, molybdeen en vanadium bevattende katalysator, alsmede gevormde katalysator voor deze oxydatie.
NL169581C (nl) Werkwijze voor het bereiden van acrylzuur en/of methacrylzuur, alsmede werkwijze voor het bereiden van een daarbij te gebruiken katalysator.
NL168560C (nl) Werkwijze voor het terugwinnen van zware metalen uit een bij de bereiding van tereftaalzuur gebruikte katalysator.
NL7513000A (nl) Werkwijze ter bereiding van onverzadigde carbon- zuren door katalytische oxydatie in de gasfase van de overeenkomstige aldehyden.
NL7414012A (nl) Katalysatorsamenstelling alsmede werkwijze voor het bereiden van acrylzuur of methacrylzuur.
NL171980C (nl) Werkwijze ter bereiding van methacrylzuur door oxydatie van methacroleien in de gasfase en werkwijze ter bereiding van een daarbij te gebruiken katalysator.
NL7408765A (nl) Werkwijze voor de bereiding van methacrylzuur en een daarbij te gebruiken katalysator.
NL176556C (nl) Werkwijze voor het bereiden van een fenylester en werkwijze voor de bereiding van een daarbij te gebruiken katalysator.
NL7414543A (nl) Werkwijze ter bereiding van fenolsulfonzuur- -ureum-formaldehydeomzettingsprodukten en toe- passing ervan als looiend werkende stoffen.
NL169169C (nl) Werkwijze ter bereiding van methacrylzuur door oxydatie van methacroleine met zuurstof in tegenwoordigheid van molybdeen-fosfor-zirkoon-vanadium-katalysatoren.
NL7413653A (nl) Werkwijze voor de katalytische bereiding van onverzadigde carbonzuren.
NL167679C (nl) Werkwijze voor de bereiding van methacrylzuur of acrylzuur door oxydatie van methacroleine of acroleine in de dampfase.
JPS5251314A (en) Method of preparing unsaturated carboxylic acid by catalytic oxidation of aldehyde in gasious phase
NL180580C (nl) Werkwijze voor de continue bereiding van azijnzuur door oxydatie in de vloeistoffase van cŸ3-cŸ8 alkaan.
NL173026C (nl) Gevormde katalysator voor de bereiding van ftaalzuuranhydride door oxydatie van o-xyleen in de gasfase, alsmede werkwijze voor het bereiden van ftaalzuuranhydride door oxydatie van o-xyleen met toepassing van genoemde katalysator.
NL176262C (nl) Werkwijze voor de bereiding van p-chloorfenoxyazijnzuurderivaten die het gehalte aan cholesterol en triglyceriden in bloed verlagen en werkwijze voor de bereiding van preparaten die deze verbindingen bevatten.
NL171963C (nl) Werkwijze voor de bereiding van zilver bevattende katalysatoren voor de oxydatie van etheen tot ethyleenoxyde.
NL7606287A (nl) Werkwijze voor de bereiding van katalysatoren voor toepassing in katalytische gasfasereacties.

Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee