BE794015A - Procede de preparation du formaldehyde - Google Patents
Procede de preparation du formaldehydeInfo
- Publication number
- BE794015A BE794015A BE794015DA BE794015A BE 794015 A BE794015 A BE 794015A BE 794015D A BE794015D A BE 794015DA BE 794015 A BE794015 A BE 794015A
- Authority
- BE
- Belgium
- Prior art keywords
- preparation process
- formaldehyde preparation
- formaldehyde
- preparation
- Prior art date
Links
Classifications
-
- 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
- C07C45/38—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 primary hydroxyl group
-
- 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
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
- C07C45/83—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation by extractive distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (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 |
|---|---|---|---|
| DE19722201434 DE2201434C3 (de) | 1972-01-13 | 1972-01-13 | Verfahren zur Herstellung von Formaldehyd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE794015A true BE794015A (fr) | 1973-07-12 |
Family
ID=5832872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE794015D BE794015A (fr) | 1972-01-13 | Procede de preparation du formaldehyde |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4878110A (lm) |
| BE (1) | BE794015A (lm) |
| DE (1) | DE2201434C3 (lm) |
| FR (1) | FR2168011B1 (lm) |
| GB (1) | GB1406201A (lm) |
| NL (1) | NL7300366A (lm) |
-
0
- BE BE794015D patent/BE794015A/xx not_active IP Right Cessation
-
1972
- 1972-01-13 DE DE19722201434 patent/DE2201434C3/de not_active Expired
-
1973
- 1973-01-01 GB GB573A patent/GB1406201A/en not_active Expired
- 1973-01-10 NL NL7300366A patent/NL7300366A/xx unknown
- 1973-01-12 FR FR7301027A patent/FR2168011B1/fr not_active Expired
- 1973-01-13 JP JP631973A patent/JPS4878110A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2201434B2 (de) | 1974-05-02 |
| FR2168011B1 (lm) | 1976-08-27 |
| GB1406201A (en) | 1975-09-17 |
| DE2201434C3 (de) | 1974-12-19 |
| DE2201434A1 (de) | 1973-07-26 |
| JPS4878110A (lm) | 1973-10-20 |
| NL7300366A (lm) | 1973-07-17 |
| FR2168011A1 (lm) | 1973-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: BADISCHE ANILIN- & SODAFABRIK A.G. Effective date: 19920131 |