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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C11/00—Aliphatic unsaturated hydrocarbons
- C07C11/12—Alkadienes
- C07C11/173—Alkadienes with five carbon atoms
- C07C11/18—Isoprene
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/20—Regeneration or reactivation
-
- 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
- B01J27/16—Phosphorus; 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
- B01J27/18—Phosphorus; 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
- B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
- B01J27/1806—Salts 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
- C07C1/247—Preparation 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/14—Phosphorus; Compounds thereof
- C07C2527/16—Phosphorus; Compounds thereof containing oxygen
- C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-
- C07C2527/173—Phosphoric acid or other acids with the formula Hn+2PnO3n+1
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S585/00—Chemistry of hydrocarbon compounds
- Y10S585/8995—Catalyst and recycle considerations
- Y10S585/906—Catalyst 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)
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)
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 |
-
1969
- 1969-06-10 US US832002A patent/US3560586A/en not_active Expired - Lifetime
- 1969-06-18 GB GB1226266D patent/GB1226266A/en not_active Expired
- 1969-06-19 JP JP44047983A patent/JPS507564B1/ja active Pending
- 1969-06-19 NL NL6909408.A patent/NL158771B/nl not_active IP Right Cessation
- 1969-06-19 CA CA054752A patent/CA927407A/en not_active Expired
- 1969-06-19 AT AT581969A patent/AT294780B/de active
- 1969-07-02 BE BE735564D patent/BE735564A/xx unknown
- 1969-07-03 FR FR6922585A patent/FR2024454A1/fr not_active Withdrawn
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 |