BE560841A - - Google Patents
Info
- Publication number
- BE560841A BE560841A BE560841DA BE560841A BE 560841 A BE560841 A BE 560841A BE 560841D A BE560841D A BE 560841DA BE 560841 A BE560841 A BE 560841A
- Authority
- BE
- Belgium
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
- C07C45/81—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
-
- 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
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
- C07C45/515—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised 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
- C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (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 |
|---|---|---|---|
| US752163XA | 1953-07-16 | 1953-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE560841A true BE560841A (en) |
Family
ID=22124300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE560841D BE560841A (en) | 1953-07-16 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE560841A (en) |
| DE (1) | DE1057086B (en) |
| FR (1) | FR1108793A (en) |
| GB (1) | GB752163A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1138752B (en) * | 1958-12-19 | 1962-10-31 | Hoechst Ag | Process for the production of pure formaldehyde |
| DE1139825B (en) * | 1958-12-27 | 1962-11-22 | Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning Frankfurt/M | Process for the preparation of pure alcohol-free formaldehyde. |
| DE1109660B (en) * | 1959-01-07 | 1961-06-29 | Degussa | Process for drying monomeric, gaseous formaldehyde |
| US3128313A (en) * | 1960-12-22 | 1964-04-07 | Du Pont | Preparation of concentrated formaldehyde |
| GB1005439A (en) * | 1960-12-28 | 1965-09-22 | Du Pont | Removal of formic acid from aqueous formaldehyde solutions containing an alcohol and/or the formal thereof |
| DE1151250B (en) * | 1961-06-01 | 1963-07-11 | Leuna Werke Iawalter Ulbrichti | Process for the production of anhydrous high purity formaldehyde |
| DE1249846B (en) * | 1966-06-20 | 1967-09-14 | Leuna Werke Veb | Process for the production of monomeric formaldehyde |
| GB9812083D0 (en) | 1998-06-05 | 1998-08-05 | Ici Plc | Removal of water |
| JP5698548B2 (en) * | 2011-01-26 | 2015-04-08 | ポリプラスチックス株式会社 | Method for producing hemi-formal concentrate and method for producing formaldehyde gas |
| CN104725203B (en) * | 2015-03-24 | 2016-05-11 | 江苏凯茂石化科技有限公司 | Process unit and the method for the synthetic polymethoxy dimethyl ether of a kind of gas formaldehyde and depickling |
| CN104725202A (en) * | 2015-03-24 | 2015-06-24 | 江苏凯茂石化科技有限公司 | Process device and method for production of poly methoxy dimethyl ether raw material |
| CN110885439B (en) * | 2019-11-22 | 2022-03-04 | 山东蓝星东大有限公司 | Method for reducing content of volatile organic compounds in polyether polyol |
-
0
- BE BE560841D patent/BE560841A/xx unknown
-
1954
- 1954-07-05 FR FR1108793D patent/FR1108793A/en not_active Expired
- 1954-07-06 GB GB19815/54A patent/GB752163A/en not_active Expired
- 1954-07-14 DE DEP12316A patent/DE1057086B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB752163A (en) | 1956-07-04 |
| FR1108793A (en) | 1956-01-17 |
| DE1057086B (en) | 1959-05-14 |