GB1216997A - Improvements in or relating to the production of propylene oxide - Google Patents
Improvements in or relating to the production of propylene oxideInfo
- Publication number
- GB1216997A GB1216997A GB1657768A GB1657768A GB1216997A GB 1216997 A GB1216997 A GB 1216997A GB 1657768 A GB1657768 A GB 1657768A GB 1657768 A GB1657768 A GB 1657768A GB 1216997 A GB1216997 A GB 1216997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen peroxide
- isopropanol
- solution
- urea
- alkyl
- 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
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
- C07D301/14—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with organic peracids, or salts, anhydrides or esters thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/01—Hydrogen peroxide
- C01B15/022—Preparation from organic compounds
- C01B15/026—Preparation from organic compounds from alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C407/00—Preparation of peroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C407/00—Preparation of peroxy compounds
- C07C407/003—Separation; Purification; Stabilisation; Use of additives
-
- 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
- C07C45/39—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 being a secondary hydroxyl group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Epoxy Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,216,997. Epoxy compounds. PETROCARBON DEVELOPMENTS Ltd. 8 April, 1969 [5 April, 1968], No. 16577/68. Heading C2C. Propylene oxide is produced by oxidizing isopropanol in the liquid phase with oxygen or an oxygen-containing gas at elevated temperature and a pressure sufficient to maintain the isopropanol and the reaction product (comprising unreacted isopropanol, hydrogen peroxide and acetone) in the liquid phase, removing the acetone from the hydrogen peroxide and unreacted isopropanol, reacting the hydrogen peroxide with a solution of urea to give a precipitate of an adduct of urea with hydrogen peroxide in the molar proportion of l:1, mixing this adduct with an extracting solvent which is an alkyl ketone with up to 7 carbon atoms; an alkyl ester with up to 7 carbon esters or an alkyl (C 1 -C 4 ) orthophosphate thereby dissolving the hydrogen peroxide and leaving at least part of the urea in solid form, replacing or mixing the solvent in the resulting hydrogen peroxide solution with one or more carboxylic acids of formula RCOOH, in which R is hydrogen, phenyl or a C 1 -C 5 alkyl radical optionally substituted by at least one electrophilic group in an inert solvent, thus producing a percarboxylic acid solution, removing any water present in the remaining peracid solution by azeotropic distillation and reacting the resulting anhydrous percarboxylic acid solution with propylene to give the required propylene oxide, the process being carried out in the absence of heavy metal ions. Suitable inert solvents are, for example, n-propyl acetate, benzene, ethyl acetate, toluene and xylene. If desired, the reaction may be carried out in the presence of an initiator, e.g hydrogen peroxide or azobisisobutyronitrile.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1657768A GB1216997A (en) | 1968-04-05 | 1968-04-05 | Improvements in or relating to the production of propylene oxide |
DE19691917034 DE1917034A1 (en) | 1968-04-05 | 1969-04-02 | Process for the preparation of epoxy compounds |
CA047688A CA921041A (en) | 1968-04-05 | 1969-04-03 | Production of propylene oxide |
NL6905291A NL6905291A (en) | 1968-04-05 | 1969-04-03 | |
BE731087D BE731087A (en) | 1968-04-05 | 1969-04-04 | |
FR6910505A FR2005665A1 (en) | 1968-04-05 | 1969-04-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1657768A GB1216997A (en) | 1968-04-05 | 1968-04-05 | Improvements in or relating to the production of propylene oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1216997A true GB1216997A (en) | 1970-12-23 |
Family
ID=10079827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1657768A Expired GB1216997A (en) | 1968-04-05 | 1968-04-05 | Improvements in or relating to the production of propylene oxide |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE731087A (en) |
CA (1) | CA921041A (en) |
DE (1) | DE1917034A1 (en) |
FR (1) | FR2005665A1 (en) |
GB (1) | GB1216997A (en) |
NL (1) | NL6905291A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113750937A (en) * | 2021-08-18 | 2021-12-07 | 江媛媛 | Purification system of epoxypropane |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2519297B2 (en) * | 1975-04-30 | 1981-05-14 | Bayer Ag, 5090 Leverkusen | Process for the continuous production of propylene oxide |
DE2519298B2 (en) * | 1975-04-30 | 1981-06-04 | Bayer Ag, 5090 Leverkusen | Process for the continuous production of propylene oxide |
-
1968
- 1968-04-05 GB GB1657768A patent/GB1216997A/en not_active Expired
-
1969
- 1969-04-02 DE DE19691917034 patent/DE1917034A1/en active Pending
- 1969-04-03 NL NL6905291A patent/NL6905291A/xx unknown
- 1969-04-03 CA CA047688A patent/CA921041A/en not_active Expired
- 1969-04-04 FR FR6910505A patent/FR2005665A1/fr not_active Withdrawn
- 1969-04-04 BE BE731087D patent/BE731087A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113750937A (en) * | 2021-08-18 | 2021-12-07 | 江媛媛 | Purification system of epoxypropane |
Also Published As
Publication number | Publication date |
---|---|
FR2005665A1 (en) | 1969-12-12 |
NL6905291A (en) | 1969-10-07 |
DE1917034A1 (en) | 1969-10-23 |
BE731087A (en) | 1969-10-06 |
CA921041A (en) | 1973-02-13 |
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