NL7008230A - - Google Patents
Info
- Publication number
- NL7008230A NL7008230A NL7008230A NL7008230A NL7008230A NL 7008230 A NL7008230 A NL 7008230A NL 7008230 A NL7008230 A NL 7008230A NL 7008230 A NL7008230 A NL 7008230A NL 7008230 A NL7008230 A NL 7008230A
- Authority
- NL
- Netherlands
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
- C07C45/84—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation by azeotropic 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 |
|---|---|---|---|
| DE19691928633 DE1928633C3 (en) | 1969-06-06 | 1969-06-06 | Process for the preparation of low-water solutions of formaldehyde |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7008230A true NL7008230A (en) | 1970-12-08 |
Family
ID=5736152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7008230A NL7008230A (en) | 1969-06-06 | 1970-06-05 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT297675B (en) |
| BE (1) | BE751379A (en) |
| CH (1) | CH540871A (en) |
| DE (1) | DE1928633C3 (en) |
| FR (1) | FR2052470A5 (en) |
| GB (1) | GB1301533A (en) |
| NL (1) | NL7008230A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002422A1 (en) * | 1979-05-04 | 1980-11-13 | Y Blashin | Method of obtaining concentrated solutions of formaldehyde |
| US4962235A (en) * | 1988-04-07 | 1990-10-09 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing high purity formaldehyde |
| GB9812083D0 (en) | 1998-06-05 | 1998-08-05 | Ici Plc | Removal of water |
| CN105272836A (en) * | 2014-07-24 | 2016-01-27 | 中国石油大学(华东) | Method for preparing formaldehyde alcohol solution |
-
1969
- 1969-06-06 DE DE19691928633 patent/DE1928633C3/en not_active Expired
-
1970
- 1970-05-29 FR FR7019769A patent/FR2052470A5/fr not_active Expired
- 1970-06-03 BE BE751379D patent/BE751379A/en unknown
- 1970-06-04 CH CH838470A patent/CH540871A/en not_active IP Right Cessation
- 1970-06-05 AT AT507670A patent/AT297675B/en active
- 1970-06-05 NL NL7008230A patent/NL7008230A/xx unknown
- 1970-06-05 GB GB1301533D patent/GB1301533A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1301533A (en) | 1972-12-29 |
| DE1928633A1 (en) | 1970-12-10 |
| DE1928633B2 (en) | 1977-08-04 |
| AT297675B (en) | 1972-04-10 |
| FR2052470A5 (en) | 1971-04-09 |
| DE1928633C3 (en) | 1978-03-23 |
| BE751379A (en) | 1970-12-03 |
| CH540871A (en) | 1973-08-31 |