BE815096A - PROCESS FOR DECREASING THE BIURET CONTENT OF THE UREA - Google Patents
PROCESS FOR DECREASING THE BIURET CONTENT OF THE UREAInfo
- Publication number
- BE815096A BE815096A BE144365A BE144365A BE815096A BE 815096 A BE815096 A BE 815096A BE 144365 A BE144365 A BE 144365A BE 144365 A BE144365 A BE 144365A BE 815096 A BE815096 A BE 815096A
- Authority
- BE
- Belgium
- Prior art keywords
- urea
- decreasing
- biuret content
- biuret
- content
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 title 1
Classifications
-
- 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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2416173A IT987491B (en) | 1973-05-16 | 1973-05-16 | PROCEDURE TO REDUCE THE CONTENT OF BIURET IN THE UREA |
| GB2327273A GB1404098A (en) | 1973-05-16 | 1973-05-16 | Process for reducing the biuret content in urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE815096A true BE815096A (en) | 1974-11-18 |
Family
ID=26256424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE144365A BE815096A (en) | 1973-05-16 | 1974-05-16 | PROCESS FOR DECREASING THE BIURET CONTENT OF THE UREA |
Country Status (18)
| Country | Link |
|---|---|
| AR (1) | AR213610A1 (en) |
| AT (1) | AT344723B (en) |
| BE (1) | BE815096A (en) |
| BG (1) | BG21603A3 (en) |
| BR (1) | BR7403961D0 (en) |
| CA (1) | CA1019344A (en) |
| CH (1) | CH617672A5 (en) |
| CS (1) | CS203001B2 (en) |
| DD (1) | DD113897A5 (en) |
| EG (1) | EG11437A (en) |
| FR (1) | FR2229690B1 (en) |
| GB (1) | GB1404098A (en) |
| IN (1) | IN142126B (en) |
| LU (1) | LU70102A1 (en) |
| NL (1) | NL7406618A (en) |
| SE (1) | SE420196B (en) |
| SU (1) | SU953978A3 (en) |
| ZA (1) | ZA743136B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345099A (en) * | 1981-08-10 | 1982-08-17 | Union Oil Company Of California | Method of selectively removing biuret from urea and compositions for use therein |
| DE102004005907B4 (en) | 2004-02-05 | 2006-01-05 | Uhde Gmbh | Plant for the production of biuretarmem urea-containing fertilizer granules |
| RO131559A2 (en) * | 2011-11-23 | 2016-12-30 | Farid Alekovich Batullin | Method for preparing crystalline carbamide of high purity |
| DE102019118702A1 (en) | 2019-07-10 | 2021-01-14 | Thyssenkrupp Ag | REDUCING BIURET GENERATION IN UREA PRODUCTION |
| CN115738359B (en) * | 2022-10-20 | 2025-09-16 | 江苏可兰素环保科技有限公司 | Extraction and purification process of urea particles |
-
1973
- 1973-05-16 GB GB2327273A patent/GB1404098A/en not_active Expired
-
1974
- 1974-05-13 AR AR253709A patent/AR213610A1/en active
- 1974-05-15 EG EG175/74A patent/EG11437A/en active
- 1974-05-15 BR BR3961/74A patent/BR7403961D0/en unknown
- 1974-05-16 BE BE144365A patent/BE815096A/en not_active IP Right Cessation
- 1974-05-16 DD DD178556A patent/DD113897A5/xx unknown
- 1974-05-16 BG BG026705A patent/BG21603A3/en unknown
- 1974-05-16 AT AT406174A patent/AT344723B/en not_active IP Right Cessation
- 1974-05-16 CS CS743519A patent/CS203001B2/en unknown
- 1974-05-16 NL NL7406618A patent/NL7406618A/xx active Search and Examination
- 1974-05-16 CA CA200,114A patent/CA1019344A/en not_active Expired
- 1974-05-16 IN IN1069/CAL/1974A patent/IN142126B/en unknown
- 1974-05-16 SU SU742026956A patent/SU953978A3/en active
- 1974-05-16 ZA ZA00743136A patent/ZA743136B/en unknown
- 1974-05-16 LU LU70102A patent/LU70102A1/xx unknown
- 1974-05-16 SE SE7406519A patent/SE420196B/en not_active IP Right Cessation
- 1974-05-16 FR FR7417058A patent/FR2229690B1/fr not_active Expired
- 1974-05-16 CH CH674574A patent/CH617672A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU6904674A (en) | 1975-11-20 |
| LU70102A1 (en) | 1976-04-13 |
| EG11437A (en) | 1977-08-15 |
| CH617672A5 (en) | 1980-06-13 |
| SU953978A3 (en) | 1982-08-23 |
| CS203001B2 (en) | 1981-02-27 |
| GB1404098A (en) | 1975-08-28 |
| FR2229690A1 (en) | 1974-12-13 |
| ATA406174A (en) | 1977-12-15 |
| DD113897A5 (en) | 1975-07-05 |
| DE2423890A1 (en) | 1974-12-12 |
| IN142126B (en) | 1977-06-04 |
| AR213610A1 (en) | 1979-02-28 |
| DE2423890B2 (en) | 1976-04-15 |
| CA1019344A (en) | 1977-10-18 |
| NL7406618A (en) | 1974-11-19 |
| ZA743136B (en) | 1975-08-27 |
| BG21603A3 (en) | 1976-07-20 |
| SE420196B (en) | 1981-09-21 |
| AT344723B (en) | 1978-08-10 |
| FR2229690B1 (en) | 1976-12-24 |
| BR7403961D0 (en) | 1974-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: GUANOS Y FERTILIZANTES DE MEXICO S.A. Effective date: 19870531 |