JPS4817249B1 - - Google Patents
Info
- Publication number
- JPS4817249B1 JPS4817249B1 JP9015570A JP9015570A JPS4817249B1 JP S4817249 B1 JPS4817249 B1 JP S4817249B1 JP 9015570 A JP9015570 A JP 9015570A JP 9015570 A JP9015570 A JP 9015570A JP S4817249 B1 JPS4817249 B1 JP S4817249B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/783—Separation; Purification; Stabilisation; Use of additives by gas-liquid treatment, e.g. by gas-liquid absorption
-
- 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
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 |
|---|---|---|---|
| DE19691951877 DE1951877A1 (de) | 1969-10-15 | 1969-10-15 | Verfahren zur Gewinnung von Formaldehyd aus Formaldehyd enthaltenden Gasen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4817249B1 true JPS4817249B1 (fr) | 1973-05-28 |
Family
ID=5748218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9015570A Pending JPS4817249B1 (fr) | 1969-10-15 | 1970-10-15 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4817249B1 (fr) |
| BE (1) | BE757485A (fr) |
| DE (1) | DE1951877A1 (fr) |
| FR (1) | FR2066021A5 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130624B (zh) * | 2013-01-14 | 2015-03-11 | 中国海洋石油总公司 | 一种渐次汽化/冷凝浓缩甲醛的方法 |
-
0
- BE BE757485D patent/BE757485A/fr unknown
-
1969
- 1969-10-15 DE DE19691951877 patent/DE1951877A1/de active Pending
-
1970
- 1970-10-15 FR FR7037282A patent/FR2066021A5/fr not_active Expired
- 1970-10-15 JP JP9015570A patent/JPS4817249B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1951877A1 (de) | 1971-04-29 |
| BE757485A (fr) | 1971-04-14 |
| FR2066021A5 (en) | 1971-08-06 |