FR2289482B1 - - Google Patents
Info
- Publication number
- FR2289482B1 FR2289482B1 FR7532485A FR7532485A FR2289482B1 FR 2289482 B1 FR2289482 B1 FR 2289482B1 FR 7532485 A FR7532485 A FR 7532485A FR 7532485 A FR7532485 A FR 7532485A FR 2289482 B1 FR2289482 B1 FR 2289482B1
- Authority
- FR
- France
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
- C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
-
- 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
-
- 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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49121510A JPS5148609A (ja) | 1974-10-23 | 1974-10-23 | Nidansankanyoruisopuchirenkarano metaku |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2289482A1 FR2289482A1 (fr) | 1976-05-28 |
| FR2289482B1 true FR2289482B1 (enFirst) | 1980-08-08 |
Family
ID=14812973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7532485A Granted FR2289482A1 (fr) | 1974-10-23 | 1975-10-23 | Procede de preparation d'acide methacrylique a partir d'isobutylene et par une oxydation en deux etapes |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5148609A (enFirst) |
| DE (1) | DE2547536C2 (enFirst) |
| FR (1) | FR2289482A1 (enFirst) |
| GB (1) | GB1504940A (enFirst) |
| IT (1) | IT1043608B (enFirst) |
| NL (1) | NL7512354A (enFirst) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52108917A (en) * | 1976-03-11 | 1977-09-12 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of acrylic acid by vapor-phase catalytic oxidation of prop ylene |
| JPS5353613A (en) * | 1976-10-26 | 1978-05-16 | Nippon Zeon Co Ltd | Preparation of methacrylic acid |
| JPS6059891B2 (ja) * | 1977-09-28 | 1985-12-27 | 住友化学工業株式会社 | メタクロレインおよびメタクリル酸の分離方法 |
| NL8001385A (nl) * | 1979-03-15 | 1980-09-17 | Halcon Res & Dev | Werkwijze voor de bereiding van methacrylzuur. |
| JPS6145541Y2 (enFirst) * | 1981-05-20 | 1986-12-22 | ||
| CA1299193C (en) * | 1986-07-17 | 1992-04-21 | Gordon Gene Harkreader | Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid |
| CA1305178C (en) * | 1986-08-21 | 1992-07-14 | Gordon Gene Harkreader | Anhydrous diluent process for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid |
| US6933407B2 (en) | 2001-06-29 | 2005-08-23 | Basf Aktiengesellschaft | Method for producing methacrylic acid from isobutane |
| EP2976320B1 (en) | 2013-03-18 | 2020-02-12 | Röhm GmbH | Process for preparation of methacrylic acid and methacrylic acid esters |
| CN110694687B (zh) * | 2019-11-07 | 2022-10-04 | 曲阜师范大学 | 一种用于甲基丙烯醛氧化制甲基丙烯酸的负载纳米杂多酸催化剂及其制备方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534783B2 (enFirst) * | 1972-03-09 | 1980-09-09 |
-
1974
- 1974-10-23 JP JP49121510A patent/JPS5148609A/ja active Granted
-
1975
- 1975-10-22 GB GB43461/75A patent/GB1504940A/en not_active Expired
- 1975-10-22 NL NL7512354A patent/NL7512354A/xx not_active Application Discontinuation
- 1975-10-23 FR FR7532485A patent/FR2289482A1/fr active Granted
- 1975-10-23 IT IT28600/75A patent/IT1043608B/it active
- 1975-10-23 DE DE2547536A patent/DE2547536C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5713538B2 (enFirst) | 1982-03-17 |
| GB1504940A (en) | 1978-03-22 |
| JPS5148609A (ja) | 1976-04-26 |
| DE2547536C2 (de) | 1984-06-28 |
| NL7512354A (nl) | 1976-04-27 |
| DE2547536A1 (de) | 1976-04-29 |
| FR2289482A1 (fr) | 1976-05-28 |
| IT1043608B (it) | 1980-02-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |