DD118621A1 - - Google Patents
Info
- Publication number
- DD118621A1 DD118621A1 DD187388A DD18738875A DD118621A1 DD 118621 A1 DD118621 A1 DD 118621A1 DD 187388 A DD187388 A DD 187388A DD 18738875 A DD18738875 A DD 18738875A DD 118621 A1 DD118621 A1 DD 118621A1
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C277/06—Purification or separation of guanidine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2435167A DE2435167C3 (de) | 1974-07-22 | 1974-07-22 | Verfahren zur Gewinnung von Guanidincarbonat aus verdünnten, wäßrigen Lösungen |
| AT610274A AT336035B (de) | 1974-07-22 | 1974-07-24 | Verfahren zur gewinnung von guanidincarbonat aus verdunnten wasserigen losungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD118621A1 true DD118621A1 (xx) | 1976-03-12 |
Family
ID=25602789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD187388A DD118621A1 (xx) | 1974-07-22 | 1975-07-21 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3984471A (xx) |
| JP (1) | JPS5134116A (xx) |
| AT (1) | AT336035B (xx) |
| BE (1) | BE831611A (xx) |
| BG (1) | BG27896A3 (xx) |
| CA (1) | CA1038886A (xx) |
| CH (1) | CH595332A5 (xx) |
| CS (1) | CS194722B2 (xx) |
| DD (1) | DD118621A1 (xx) |
| DE (1) | DE2435167C3 (xx) |
| FR (1) | FR2279726A1 (xx) |
| GB (1) | GB1457226A (xx) |
| IN (1) | IN141743B (xx) |
| NL (1) | NL175523C (xx) |
| SE (1) | SE424724B (xx) |
| SU (1) | SU895284A3 (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808766A1 (de) * | 1988-03-16 | 1989-09-28 | Sueddeutsche Kalkstickstoff | Verfahren zur rueckgewinnung von guanidinhydrohalogeniden aus den bei der herstellung von mercaptoalkylsilanen anfallenden produktgemischen |
| DE4405546A1 (de) * | 1994-02-22 | 1995-08-24 | Nigu Chemie Gmbh | Verfahren zur Rückgewinnung von Guanidinsalzen |
| EP3626706B1 (en) | 2018-09-20 | 2021-06-02 | Borealis Agrolinz Melamine GmbH | Method for increasing the guanidine carbonate yield in a combined melamine process and guanidine carbonate treatment process |
| EP3750872B1 (en) | 2019-06-14 | 2023-06-07 | Borealis Agrolinz Melamine GmbH | Increase of guanidine carbonate yield by reduction of mother liquor disposal and quality improvement due to increase of temperature spread |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2234732C2 (de) * | 1972-07-14 | 1983-05-05 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | Verfahren zur Gewinnung von Guanidin |
-
1974
- 1974-07-22 DE DE2435167A patent/DE2435167C3/de not_active Expired
- 1974-07-24 AT AT610274A patent/AT336035B/de not_active IP Right Cessation
-
1975
- 1975-06-09 NL NLAANVRAGE7506828,A patent/NL175523C/xx not_active IP Right Cessation
- 1975-06-24 BG BG7530375A patent/BG27896A3/xx unknown
- 1975-06-25 FR FR7519899A patent/FR2279726A1/fr active Granted
- 1975-07-03 GB GB2813575A patent/GB1457226A/en not_active Expired
- 1975-07-08 CA CA231,064A patent/CA1038886A/en not_active Expired
- 1975-07-09 IN IN1337/CAL/75A patent/IN141743B/en unknown
- 1975-07-11 CS CS754939A patent/CS194722B2/cs unknown
- 1975-07-18 US US05/597,008 patent/US3984471A/en not_active Expired - Lifetime
- 1975-07-21 SE SE7508284A patent/SE424724B/xx unknown
- 1975-07-21 DD DD187388A patent/DD118621A1/xx active IP Right Grant
- 1975-07-21 CH CH951875A patent/CH595332A5/xx not_active IP Right Cessation
- 1975-07-22 BE BE158504A patent/BE831611A/xx not_active IP Right Cessation
- 1975-07-22 JP JP50088929A patent/JPS5134116A/ja active Pending
- 1975-07-22 SU SU752159065A patent/SU895284A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SU895284A3 (ru) | 1981-12-30 |
| CS194722B2 (en) | 1979-12-31 |
| SE424724B (sv) | 1982-08-09 |
| NL7506828A (nl) | 1976-01-26 |
| GB1457226A (en) | 1976-12-01 |
| ATA610274A (de) | 1976-08-15 |
| NL175523C (nl) | 1984-11-16 |
| IN141743B (xx) | 1977-04-09 |
| BG27896A3 (en) | 1980-01-15 |
| FR2279726A1 (fr) | 1976-02-20 |
| JPS5134116A (en) | 1976-03-23 |
| DE2435167C3 (de) | 1979-02-15 |
| BE831611A (fr) | 1976-01-22 |
| DE2435167B2 (de) | 1978-06-22 |
| AT336035B (de) | 1977-04-12 |
| CH595332A5 (xx) | 1978-02-15 |
| SE7508284L (sv) | 1976-01-23 |
| FR2279726B1 (xx) | 1978-02-03 |
| CA1038886A (en) | 1978-09-19 |
| US3984471A (en) | 1976-10-05 |
| NL175523B (nl) | 1984-06-18 |
| DE2435167A1 (de) | 1976-02-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UW | Conversion of economic patent into exclusive patent | ||
| NPI | Change in the person, name or address of the patentee (addendum to changes before extension act) | ||
| NPV | Change in the person, the name or the address of the representative (addendum to changes before extension act) |