GB990883A - Improvements in or relating to the purification of epoxy compounds - Google Patents
Improvements in or relating to the purification of epoxy compoundsInfo
- Publication number
- GB990883A GB990883A GB26688/62A GB2668862A GB990883A GB 990883 A GB990883 A GB 990883A GB 26688/62 A GB26688/62 A GB 26688/62A GB 2668862 A GB2668862 A GB 2668862A GB 990883 A GB990883 A GB 990883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- epoxy compound
- water
- impurities
- contacting
- purification
- 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
- 239000004593 Epoxy Substances 0.000 title abstract 6
- 150000001875 compounds Chemical class 0.000 title abstract 6
- 238000000746 purification Methods 0.000 title abstract 2
- 239000012535 impurity Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 2
- 150000002118 epoxides Chemical class 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 abstract 1
- 238000006735 epoxidation reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 235000012424 soybean oil Nutrition 0.000 abstract 1
- 239000003549 soybean oil Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/32—Separation; Purification
-
- 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
- C07D301/12—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with hydrogen peroxide or inorganic peroxides or peracids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/12—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms
- C07D303/16—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms by esterified hydroxyl radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/38—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D303/40—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals by ester radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Epoxy Compounds (AREA)
Abstract
Organic epoxy compounds containing acidic impurities formed during an epoxidation reaction, which impurities promote discoloration of the epoxide on heating, are purified by contacting a solution of the epoxy compound in a hydrocarbon immiscible with water at a temperature of 20 DEG to 100 DEG C. with a solution of an alkali metal hydroxide dissolved in a homgeneous mixture of water and an aliphatic alcohol containing up to 6 carbon atoms, the said mixture containing 40 to 60% by weight of water, and the amount of alkali metal hydroxide being in excess of that theoretically required to neutralize all the acidic impurities in the epoxy compound but insufficient to react with the organic epoxy compound under the process conditions, the contacting being continued until at least 50% by weight of the colour-forming impurities have been removed. The process is especially suitable for purifying epoxides prepared by the process of Specification 933,697. Several suitable hydrocarbon solvents and alcohols are specified. Several suitable types of epoxy compound are specified. Examples describe the purification of epoxidized soybean oil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12865961A | 1961-08-02 | 1961-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB990883A true GB990883A (en) | 1965-05-05 |
Family
ID=22436359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26688/62A Expired GB990883A (en) | 1961-08-02 | 1962-07-11 | Improvements in or relating to the purification of epoxy compounds |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1233397B (en) |
| GB (1) | GB990883A (en) |
| NL (1) | NL281669A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869207A (en) * | 1981-10-21 | 1983-04-25 | Nippon Petrochem Co Ltd | Purification of epoxidized product |
-
0
- NL NL281669D patent/NL281669A/xx unknown
-
1962
- 1962-07-11 GB GB26688/62A patent/GB990883A/en not_active Expired
- 1962-07-23 DE DEA40793A patent/DE1233397B/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE1233397B (en) | 1967-02-02 |
| DE1233397C2 (en) | 1967-08-10 |
| NL281669A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3373812D1 (en) | Process for the preparation of modified triglycerides containing epoxy, hydroxy and ether groups | |
| ES408055A1 (en) | Catalyst recycle | |
| GB1015033A (en) | Preparation of olefin oxides | |
| ES395527A1 (en) | Catalyst for producing oxirane compounds by epoxidizing olefins with hydroperoxides | |
| GB933823A (en) | Process for the preparation of trimethylolalkanes having improved use characteristics and products obtained thereby | |
| GB1272168A (en) | Process for preparing cumene | |
| GB990883A (en) | Improvements in or relating to the purification of epoxy compounds | |
| GB974164A (en) | Production of epichlorohydrin | |
| FR2505202B3 (en) | ||
| GB1397659A (en) | Process for preparing glycidol | |
| GB1089252A (en) | Process for the recovery of boric acid from oxidation mixtures of the liquid phase oxidation of hydrocarbons | |
| GB991395A (en) | Improved process for preparing the crystalline warfarin sodium-isopropyl alcohol complex | |
| GB970629A (en) | Improvements in or relating to the purification of acrylonitrile | |
| ES324324A1 (en) | A continuous procedure for the epoxidation of unsaturated organic compounds. (Machine-translation by Google Translate, not legally binding) | |
| GB1031178A (en) | Purification of triethylenediamine | |
| ATE12110T1 (en) | PROCESS FOR THE PRODUCTION OF EPOXYALKANES. | |
| BR8008494A (en) | PROCESS FOR THE PREPARATION OF OXIRANS | |
| GB1021417A (en) | Process for preparing epichlorohydrin | |
| US2999867A (en) | Epoxides and method of making the same | |
| GB1008175A (en) | A process for the hydrogenation of unsaturated halogenated organic compounds | |
| GB1511876A (en) | Process for detoxificating aqueous formaldehyde-containing effluents | |
| GB824551A (en) | Improvements in and relating to the production of 1:3-diols | |
| GB891823A (en) | A process for the purification of epoxides | |
| GB822535A (en) | Improvements in or relating to a process for separately recovering an aldehyde or ketone and an aqueous solution of the corresponding alcohol from an aqueous mixture containing the aldehyde or ketone and the alcohol | |
| GB927809A (en) | Improvements in and relating to glycols |