ES348819A1 - Procedimiento para la obtencion de isopreno. - Google Patents

Procedimiento para la obtencion de isopreno.

Info

Publication number
ES348819A1
ES348819A1 ES348819A ES348819A ES348819A1 ES 348819 A1 ES348819 A1 ES 348819A1 ES 348819 A ES348819 A ES 348819A ES 348819 A ES348819 A ES 348819A ES 348819 A1 ES348819 A1 ES 348819A1
Authority
ES
Spain
Prior art keywords
isoprene
isobutylene
preparation
waste disposal
dimethyl
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES348819A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
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
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES348819A1 publication Critical patent/ES348819A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
    • 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
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/12—Alkadienes
    • C07C11/173—Alkadienes with five carbon atoms
    • C07C11/18—Isoprene
    • 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
    • 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
    • Y10S585/905—Catalyst and recycle considerations by-product conversion to feed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Procedimiento para la obtención de isopreno, mediante reacción de isobuteno y formaldehico acuosos en presencia de un catalizador a 4, 4-dimetil-m-dioxano y disociación del 4, 4- dimetil-m-dioxano a isopreno, caracterizado porque los productos secundarios volátiles, más pesados que el agua, disueltos en la fase acuosa, que se obtienen en la obtención del 4, 4- dimetil-m-dioxano, se disocian, después de su enriquecimiento, catalíticamente isopreno.
ES348819A 1967-01-02 1967-12-30 Procedimiento para la obtencion de isopreno. Expired ES348819A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0051156 1967-01-02

Publications (1)

Publication Number Publication Date
ES348819A1 true ES348819A1 (es) 1969-03-16

Family

ID=7104381

Family Applications (1)

Application Number Title Priority Date Filing Date
ES348819A Expired ES348819A1 (es) 1967-01-02 1967-12-30 Procedimiento para la obtencion de isopreno.

Country Status (7)

Country Link
US (1) US3494975A (es)
BE (1) BE708799A (es)
DE (1) DE1618331C3 (es)
ES (1) ES348819A1 (es)
FR (1) FR1554005A (es)
GB (1) GB1214571A (es)
NL (1) NL6717851A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754496A (fr) * 1969-08-06 1971-02-05 Bayer Ag Procede pour la preparation de l'isoprene
CA937589A (en) * 1969-10-09 1973-11-27 Takagi Kazumi Method for producing isoprene
FR2306182A1 (fr) * 1975-04-01 1976-10-29 Bart Evgeny Procede de transformation des sous-produits lourds de la production de l'isoprene
CN108358738B (zh) * 2018-02-12 2021-04-06 濮阳林氏化学新材料股份有限公司 一种异戊二烯的制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377405A (en) * 1966-05-31 1968-04-09 Marathon Oil Co Preparation of polyenes

Also Published As

Publication number Publication date
DE1618331C3 (de) 1975-07-31
GB1214571A (en) 1970-12-02
DE1618331B2 (de) 1974-11-28
FR1554005A (es) 1969-01-17
US3494975A (en) 1970-02-10
DE1618331A1 (de) 1970-10-29
NL6717851A (es) 1968-07-03
BE708799A (es) 1968-07-01

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