NL7512814A - PROCESS FOR THE PREPARATION OF CONCENTRATED SOLUTIONS OF FORMALDEHYDE AND UREA IN WATER. - Google Patents
PROCESS FOR THE PREPARATION OF CONCENTRATED SOLUTIONS OF FORMALDEHYDE AND UREA IN WATER.Info
- Publication number
- NL7512814A NL7512814A NL7512814A NL7512814A NL7512814A NL 7512814 A NL7512814 A NL 7512814A NL 7512814 A NL7512814 A NL 7512814A NL 7512814 A NL7512814 A NL 7512814A NL 7512814 A NL7512814 A NL 7512814A
- Authority
- NL
- Netherlands
- Prior art keywords
- formaldehyde
- urea
- preparation
- water
- concentrated solutions
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/025—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds of solutions of urea and formaldehyde
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742451990 DE2451990C3 (en) | 1974-11-02 | 1974-11-02 | Process for the preparation of concentrated, aqueous solutions of formaleyhd and urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7512814A true NL7512814A (en) | 1976-05-04 |
Family
ID=5929817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7512814A NL7512814A (en) | 1974-11-02 | 1975-10-31 | PROCESS FOR THE PREPARATION OF CONCENTRATED SOLUTIONS OF FORMALDEHYDE AND UREA IN WATER. |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5170727A (en) |
| BE (1) | BE835105A (en) |
| DE (1) | DE2451990C3 (en) |
| FR (1) | FR2289537A1 (en) |
| GB (1) | GB1517366A (en) |
| IT (1) | IT1044595B (en) |
| NL (1) | NL7512814A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2411850A1 (en) * | 1977-12-19 | 1979-07-13 | Reichhold Chemicals Inc | Urea-formaldehyde concentrate continuous mfr. - using formaldehyde converter gases and aq. urea soln. reacting counter-current in single multiple stage absorption column |
| DE2914135A1 (en) * | 1979-04-07 | 1980-10-23 | Basf Ag | METHOD FOR THE SIMULTANEOUS PRODUCTION OF CONCENTRATED, AQUEOUS FORMALDEHYDE / UREA SOLUTIONS AND FORMALDEHYDE SOLUTIONS |
| DE3152005A1 (en) * | 1981-12-31 | 1983-07-07 | Basf Ag, 6700 Ludwigshafen | METHOD FOR PRODUCING CONCENTRATED, AQUEOUS SOLUTIONS OF FORMALDEHYDE AND UREA |
| US20200009535A1 (en) | 2017-02-24 | 2020-01-09 | Basf Se | Silver catalyst system having a reduced pressure drop for the oxidative dehydrogenation of alcohols |
| EP3539657A1 (en) | 2018-03-14 | 2019-09-18 | Basf Se | Improved catalysts comprising silver based intermetallic compounds |
-
1974
- 1974-11-02 DE DE19742451990 patent/DE2451990C3/en not_active Expired
-
1975
- 1975-10-23 GB GB4357075A patent/GB1517366A/en not_active Expired
- 1975-10-29 IT IT2877675A patent/IT1044595B/en active
- 1975-10-31 FR FR7533432A patent/FR2289537A1/en active Granted
- 1975-10-31 JP JP13056975A patent/JPS5170727A/en active Pending
- 1975-10-31 BE BE161453A patent/BE835105A/en not_active IP Right Cessation
- 1975-10-31 NL NL7512814A patent/NL7512814A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5170727A (en) | 1976-06-18 |
| FR2289537A1 (en) | 1976-05-28 |
| GB1517366A (en) | 1978-07-12 |
| BE835105A (en) | 1976-04-30 |
| IT1044595B (en) | 1980-03-31 |
| DE2451990B2 (en) | 1980-07-31 |
| FR2289537B1 (en) | 1979-07-06 |
| DE2451990C3 (en) | 1981-04-09 |
| DE2451990A1 (en) | 1976-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |