NL158771B - Werkwijze voor het kraken van 4,4-dimethyl m-dioxan tot isopreen. - Google Patents

Werkwijze voor het kraken van 4,4-dimethyl m-dioxan tot isopreen.

Info

Publication number
NL158771B
NL158771B NL6909408.A NL6909408A NL158771B NL 158771 B NL158771 B NL 158771B NL 6909408 A NL6909408 A NL 6909408A NL 158771 B NL158771 B NL 158771B
Authority
NL
Netherlands
Prior art keywords
dioxan
isoprene
cracking
dimethyl
Prior art date
Application number
NL6909408.A
Other languages
English (en)
Other versions
NL6909408A (nl
Original Assignee
Bayer 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
Priority claimed from DE19681811655 external-priority patent/DE1811655C3/de
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of NL6909408A publication Critical patent/NL6909408A/xx
Publication of NL158771B publication Critical patent/NL158771B/nl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00Aliphatic unsaturated hydrocarbons
    • C07C11/12Alkadienes
    • C07C11/173Alkadienes with five carbon atoms
    • C07C11/18Isoprene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/16Clays or other mineral silicates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/20Regeneration or reactivation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14Phosphorus; Compounds thereof
    • B01J27/16Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
    • B01J27/18Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
    • B01J27/1802Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
    • B01J27/1806Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with alkaline or alkaline earth metals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/247Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by splitting of cyclic ethers
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/14Phosphorus; Compounds thereof
    • C07C2527/16Phosphorus; Compounds thereof containing oxygen
    • C07C2527/167Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-
    • C07C2527/173Phosphoric acid or other acids with the formula Hn+2PnO3n+1
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/584Recycling of catalysts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00Chemistry of hydrocarbon compounds
    • Y10S585/8995Catalyst and recycle considerations
    • Y10S585/906Catalyst preservation or manufacture, e.g. activation before use

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
NL6909408.A 1968-11-29 1969-06-19 Werkwijze voor het kraken van 4,4-dimethyl m-dioxan tot isopreen. NL158771B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681811655 DE1811655C3 (de) 1968-11-29 Verfahren zum Spalten von 4,4-Dimethylm-dioxan zu Isopren

Publications (2)

Publication Number Publication Date
NL6909408A NL6909408A (nl) 1970-06-02
NL158771B true NL158771B (nl) 1978-12-15

Family

ID=5714700

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6909408.A NL158771B (nl) 1968-11-29 1969-06-19 Werkwijze voor het kraken van 4,4-dimethyl m-dioxan tot isopreen.

Country Status (8)

Country Link
US (1) US3560586A (nl)
JP (1) JPS507564B1 (nl)
AT (1) AT294780B (nl)
BE (1) BE735564A (nl)
CA (1) CA927407A (nl)
FR (1) FR2024454A1 (nl)
GB (1) GB1226266A (nl)
NL (1) NL158771B (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496884B1 (nl) * 1970-09-29 1974-02-16
US3867279A (en) * 1972-07-20 1975-02-18 Union Oil Co Hydrocarbon cracking with catalytic phosphate-silica-aluminosilicate compositions of improved crushing strength
US3846337A (en) * 1972-07-20 1974-11-05 Union Oil Co Phosphate-silica-aluminosilicate compositions of improved crushing strength and methods of preparing the same
US4232182A (en) * 1977-11-21 1980-11-04 Liakumovich Alexandr G Process for purifying isoprene
DE2908491A1 (de) * 1979-03-05 1980-09-18 Huels Chemische Werke Ag Verfahren zur herstellung eines katalysators fuer die hydratation von olefinen zu alkoholen
DE2929919A1 (de) * 1979-07-24 1981-02-19 Huels Chemische Werke Ag Verfahren zur herstellung eines katalysators aus tonmineralien fuer die hydratation von olefinen

Also Published As

Publication number Publication date
GB1226266A (nl) 1971-03-24
AT294780B (de) 1971-12-10
DE1811655B2 (de) 1976-08-12
BE735564A (nl) 1970-01-02
CA927407A (en) 1973-05-29
DE1811655A1 (de) 1970-06-18
US3560586A (en) 1971-02-02
JPS507564B1 (nl) 1975-03-27
FR2024454A1 (nl) 1970-08-28
NL6909408A (nl) 1970-06-02

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: BAYER