GB924628A - Process for the continuous production of propylene oxide - Google Patents

Process for the continuous production of propylene oxide

Info

Publication number
GB924628A
GB924628A GB3252359A GB3252359A GB924628A GB 924628 A GB924628 A GB 924628A GB 3252359 A GB3252359 A GB 3252359A GB 3252359 A GB3252359 A GB 3252359A GB 924628 A GB924628 A GB 924628A
Authority
GB
United Kingdom
Prior art keywords
propylene
mixture
carbon monoxide
oxidation
hydrocarbons
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
GB3252359A
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 GB924628A publication Critical patent/GB924628A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Propylene oxide is produced in a continuous process by the reaction of propylene or propylene-propane mixtures with oxygen at elevated temperature and pressure, the products of oxidation being removed and the unreacted hydrocarbons being recycled after replacing the hydrocarbons used up, wherein the carbon monoxide which is formed as a by-product is removed from the recycled hydrocarbons by ensuring that the oxygen content of the residual gas is such that the carbon monoxide formed can be oxidised to carbon dioxide, conducting this gas mixture at an elevated temperature, which is below the temperature necessary for the oxidation of propylene, e.g. 140 DEG to 190 DEG C., over an oxidation catalyst, e.g. a mixture of manganese oxide and copper oxide, and removing from the gas mixture the carbon dioxide which is formed, p for example by passing the mixture through an absorption tower in counter-current flow to potassium carbonate solution or diethanolamine. Preferably only part of the carbon monoxide is removed in this way, between 1 to 8% by volume remaining in the recycle gas. Specification 643,687 is referred to.
GB3252359A 1958-09-29 1959-09-24 Process for the continuous production of propylene oxide Expired GB924628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF26685A DE1082247B (en) 1958-09-29 1958-09-29 Process for the continuous oxidation of propylene

Publications (1)

Publication Number Publication Date
GB924628A true GB924628A (en) 1963-04-24

Family

ID=7092117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3252359A Expired GB924628A (en) 1958-09-29 1959-09-24 Process for the continuous production of propylene oxide

Country Status (3)

Country Link
BE (1) BE583073A (en)
DE (1) DE1082247B (en)
GB (1) GB924628A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161551B (en) * 1961-10-13 1964-01-23 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen Process for the production of oxidation products of propylene, especially acetaldehyde and propylene oxide.
DE1279669B (en) * 1964-03-12 1968-10-10 Basf Ag Process for the production of ethylene oxide

Also Published As

Publication number Publication date
DE1082247B (en) 1960-05-25
BE583073A (en) 1960-03-28

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