GB1429105A - Process for the reduction to ferrous ions of ferric ions present in solutions resulting from the deperoxidation of organic per oxides - Google Patents
Process for the reduction to ferrous ions of ferric ions present in solutions resulting from the deperoxidation of organic per oxidesInfo
- Publication number
- GB1429105A GB1429105A GB821074A GB821074A GB1429105A GB 1429105 A GB1429105 A GB 1429105A GB 821074 A GB821074 A GB 821074A GB 821074 A GB821074 A GB 821074A GB 1429105 A GB1429105 A GB 1429105A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deperoxidation
- ions
- reduction
- present
- dicarboxylic acids
- 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
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Abstract
1429105 Dicarboxylic acids RHONEPOULENC SA 22 Feb 1974 [23 Feb 1973] 8210/74 Heading C2C In a process for the preparation of dicarboxylic acids by the double deperoxidation of cyclohexanone peroxide by ferrous ions, the ferric ions present in the reaction mixture are reduced to ferrous ions by hydrogenation of the reaction mixture in the presence of a palladium, platinum or nickel catalyst. The ions are present as carboxylates, e.g. caproate, acetate, or heptanoate in an organic solvent or as sulphate in aqueous medium. Long-chain dicarboxylic acids are prepared by this method, e.g. decane-dodecane and dimethyl dodecandoic acids are mentioned and these are prepared in examples which include the hydrogenation stage with the catalyst, and the filtered catalyst is sensed in the deperoxidation process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7306469A FR2219144B1 (en) | 1973-02-23 | 1973-02-23 | |
| CA198,851A CA1018543A (en) | 1973-02-23 | 1974-05-03 | Process of reduction of ferric ions into ferrous ions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1429105A true GB1429105A (en) | 1976-03-24 |
Family
ID=25667561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB821074A Expired GB1429105A (en) | 1973-02-23 | 1974-02-22 | Process for the reduction to ferrous ions of ferric ions present in solutions resulting from the deperoxidation of organic per oxides |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS49115992A (en) |
| BR (1) | BR7401247D0 (en) |
| CA (1) | CA1018543A (en) |
| CH (1) | CH590790A5 (en) |
| CS (1) | CS178911B2 (en) |
| DD (1) | DD109858A5 (en) |
| DE (1) | DE2408684A1 (en) |
| FR (1) | FR2219144B1 (en) |
| GB (1) | GB1429105A (en) |
| NL (1) | NL7402131A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069304C (en) * | 1996-12-12 | 2001-08-08 | 罗纳·布朗克纤维和树脂中间体公司 | Method for prepn. of diacid by using washing water from cyclohexane oxidation products |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB740747A (en) * | 1951-08-18 | 1955-11-16 | Distillers Co Yeast Ltd | Preparation of alpha-omega-dicarboxylic acids |
| GB1143139A (en) * | 1966-11-23 | 1969-02-19 | Johnson Matthey Co Ltd | Improvements in and relating to the oxidation of ferrous compounds and to the reduction of ferric compounds |
-
1973
- 1973-02-23 FR FR7306469A patent/FR2219144B1/fr not_active Expired
-
1974
- 1974-02-15 NL NL7402131A patent/NL7402131A/xx active Search and Examination
- 1974-02-19 DD DD176657A patent/DD109858A5/xx unknown
- 1974-02-20 BR BR1247/74A patent/BR7401247D0/en unknown
- 1974-02-20 JP JP49019591A patent/JPS49115992A/ja active Pending
- 1974-02-22 CH CH258874A patent/CH590790A5/xx not_active IP Right Cessation
- 1974-02-22 DE DE19742408684 patent/DE2408684A1/en active Pending
- 1974-02-22 GB GB821074A patent/GB1429105A/en not_active Expired
- 1974-02-25 CS CS7400001375A patent/CS178911B2/en unknown
- 1974-05-03 CA CA198,851A patent/CA1018543A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069304C (en) * | 1996-12-12 | 2001-08-08 | 罗纳·布朗克纤维和树脂中间体公司 | Method for prepn. of diacid by using washing water from cyclohexane oxidation products |
Also Published As
| Publication number | Publication date |
|---|---|
| CH590790A5 (en) | 1977-08-31 |
| BR7401247D0 (en) | 1974-11-05 |
| NL7402131A (en) | 1974-08-27 |
| DD109858A5 (en) | 1974-11-20 |
| FR2219144B1 (en) | 1976-06-11 |
| DE2408684A1 (en) | 1974-09-05 |
| FR2219144A1 (en) | 1974-09-20 |
| JPS49115992A (en) | 1974-11-06 |
| CA1018543A (en) | 1977-10-04 |
| CS178911B2 (en) | 1977-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |