GB1353225A - Process for oxidising cyclohexane - Google Patents
Process for oxidising cyclohexaneInfo
- Publication number
- GB1353225A GB1353225A GB3575071A GB3575071A GB1353225A GB 1353225 A GB1353225 A GB 1353225A GB 3575071 A GB3575071 A GB 3575071A GB 3575071 A GB3575071 A GB 3575071A GB 1353225 A GB1353225 A GB 1353225A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclohexane
- oxidizing
- zones
- liquid
- molecular
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C409/00—Peroxy compounds
- C07C409/02—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides
- C07C409/14—Peroxy compounds the —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides the carbon atom belonging to a ring other than a six-membered aromatic ring
-
- 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
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Abstract
1353225 Oxidation of cyclohexane E I DU PONT DE NEMOURS & CO 29 July 1971 [31 July 1970] 35750/71 Heading C2C The invention comprises a process for oxidation of cyclohexane to provide a liquid product containing cyclohexane, cyclohexanol, cyclohexanone and cyclohexyl hydroperoxide by passing a stream of liquid cyclohexane containing dissolved therein 0À1-5 p.p.m. of a soluble cobalt oxidation catalyst downwardly through a zoned reactor 22 (supplied from 24) in countercurrent contact with an upwardly flowing gas stream containing molecular oxygen (supplied at 42), wherein the liquid passes initially through at least one oxygen clean-up zone at 130-180‹ C./60-350 p.s.i.g. in which the molecular O 2 content is reduced to a level below that at which the subsequent removal of cyclohexane vapour produces an explosive mixture, and the liquid then passes through a series of oxidizing zones at 140-170‹ C./60- 350 p.s.i.g. wherein the molecular O 2 content is maintained in excess of the stoichiometric amount required by introduction of additional amounts of said molecular O 2 containing gas into each of said zones, the overall amount of molecular oxygen consumed in the oxidizing zones being not more than 95% of the total amount fed to the reactor, The liquid stream is withdrawn from the reactor from below the lowest oxidizing zone (via line 44), the amount of cyclohexylhydroperoxide in the product being at least 15% wt. based on the combined weight of cyclohexanol, cyclohexanone and cyclohexylhydroperoxide. In the illustrated apparatus zones are formed by the introduction of perforated trays 1-21, regions 26-41 are preferably oxidizing zones to which oxidizing gas may be admitted and off gas from 25 may be recycled to 42 to provide mild oxidizing conditions and strip cyclohexane from the product. Cobalt naphthenate is a specified catalyst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5988870A | 1970-07-31 | 1970-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1353225A true GB1353225A (en) | 1974-05-15 |
Family
ID=22025925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3575071A Expired GB1353225A (en) | 1970-07-31 | 1971-07-29 | Process for oxidising cyclohexane |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5529059B1 (en) |
BE (1) | BE769798A (en) |
CA (1) | CA935182A (en) |
DE (1) | DE2136744C3 (en) |
GB (1) | GB1353225A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3987100A (en) * | 1974-04-11 | 1976-10-19 | E. I. Du Pont De Nemours And Company | Cyclohexane oxidation in the presence of binary catalysts |
DE2951956A1 (en) * | 1979-12-22 | 1981-07-23 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING MIXTURES FROM CYCLOHEXYL HYDROPEROXIDE |
JPH01117230A (en) * | 1987-10-29 | 1989-05-10 | Izumi Seimitsu Kogyo Kk | Current breaking device |
DE19643154A1 (en) * | 1996-10-18 | 1998-04-23 | Basf Ag | Process for the preparation of oxidation products of cyclohexane in countercurrent |
CN104583163A (en) * | 2012-07-19 | 2015-04-29 | 因温斯特技术公司 | Process for the oxidation of cyclohexane |
JP7458230B2 (en) | 2020-04-03 | 2024-03-29 | 三菱重工業株式会社 | Blade root spring assembly and extraction jig and blade root spring assembly and extraction method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2851496A (en) * | 1954-07-27 | 1958-09-09 | Du Pont | Preparation of oxidation products of cyclohexane |
-
1971
- 1971-06-23 CA CA116483A patent/CA935182A/en not_active Expired
- 1971-07-09 BE BE769798A patent/BE769798A/en unknown
- 1971-07-22 DE DE2136744A patent/DE2136744C3/en not_active Expired
- 1971-07-29 JP JP5646871A patent/JPS5529059B1/ja active Pending
- 1971-07-29 GB GB3575071A patent/GB1353225A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2136744B2 (en) | 1980-02-21 |
JPS5529059B1 (en) | 1980-07-31 |
DE2136744C3 (en) | 1980-10-09 |
CA935182A (en) | 1973-10-09 |
BE769798A (en) | 1971-11-16 |
DE2136744A1 (en) | 1972-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |