BE815096A - Procede pour diminuer la teneur en biuret de l'uree - Google Patents
Procede pour diminuer la teneur en biuret de l'ureeInfo
- 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
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 (it) | 1973-05-16 | 1973-05-16 | Procedimento per ridurre il con tenuto di biureto nella 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 (fr) | 1974-11-18 |
Family
ID=26256424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE144365A BE815096A (fr) | 1973-05-16 | 1974-05-16 | Procede pour diminuer la teneur en biuret de l'uree |
Country Status (18)
Country | Link |
---|---|
AR (1) | AR213610A1 (fr) |
AT (1) | AT344723B (fr) |
BE (1) | BE815096A (fr) |
BG (1) | BG21603A3 (fr) |
BR (1) | BR7403961D0 (fr) |
CA (1) | CA1019344A (fr) |
CH (1) | CH617672A5 (fr) |
CS (1) | CS203001B2 (fr) |
DD (1) | DD113897A5 (fr) |
EG (1) | EG11437A (fr) |
FR (1) | FR2229690B1 (fr) |
GB (1) | GB1404098A (fr) |
IN (1) | IN142126B (fr) |
LU (1) | LU70102A1 (fr) |
NL (1) | NL7406618A (fr) |
SE (1) | SE420196B (fr) |
SU (1) | SU953978A3 (fr) |
ZA (1) | ZA743136B (fr) |
Families Citing this family (4)
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 (de) | 2004-02-05 | 2006-01-05 | Uhde Gmbh | Anlage zur Herstellung von biuretarmem harnstoffhaltigem Düngemittelgranulat |
RU2472777C1 (ru) * | 2011-11-23 | 2013-01-20 | Фарид Алекович Батуллин | Способ получения кристаллического карбамида высокой очистки |
DE102019118702A1 (de) | 2019-07-10 | 2021-01-14 | Thyssenkrupp Ag | Reduzierung der biuretgeneration in der harnstoffproduktion |
-
1973
- 1973-05-16 GB GB2327273A patent/GB1404098A/en not_active Expired
-
1974
- 1974-05-13 AR AR253709A patent/AR213610A1/es active
- 1974-05-15 BR BR3961/74A patent/BR7403961D0/pt unknown
- 1974-05-15 EG EG175/74A patent/EG11437A/xx active
- 1974-05-16 LU LU70102A patent/LU70102A1/xx unknown
- 1974-05-16 SU SU742026956A patent/SU953978A3/ru active
- 1974-05-16 CS CS743519A patent/CS203001B2/cs unknown
- 1974-05-16 SE SE7406519A patent/SE420196B/xx not_active IP Right Cessation
- 1974-05-16 NL NL7406618A patent/NL7406618A/xx active Search and Examination
- 1974-05-16 CH CH674574A patent/CH617672A5/it not_active IP Right Cessation
- 1974-05-16 IN IN1069/CAL/1974A patent/IN142126B/en unknown
- 1974-05-16 FR FR7417058A patent/FR2229690B1/fr not_active Expired
- 1974-05-16 CA CA200,114A patent/CA1019344A/fr not_active Expired
- 1974-05-16 BG BG026705A patent/BG21603A3/xx unknown
- 1974-05-16 DD DD178556A patent/DD113897A5/xx unknown
- 1974-05-16 BE BE144365A patent/BE815096A/fr not_active IP Right Cessation
- 1974-05-16 AT AT406174A patent/AT344723B/de not_active IP Right Cessation
- 1974-05-16 ZA ZA00743136A patent/ZA743136B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
LU70102A1 (fr) | 1976-04-13 |
DE2423890A1 (de) | 1974-12-12 |
CS203001B2 (en) | 1981-02-27 |
DD113897A5 (fr) | 1975-07-05 |
SU953978A3 (ru) | 1982-08-23 |
SE420196B (sv) | 1981-09-21 |
ZA743136B (en) | 1975-08-27 |
EG11437A (en) | 1977-08-15 |
NL7406618A (fr) | 1974-11-19 |
AR213610A1 (es) | 1979-02-28 |
DE2423890B2 (de) | 1976-04-15 |
CH617672A5 (en) | 1980-06-13 |
BR7403961D0 (pt) | 1974-12-24 |
AU6904674A (en) | 1975-11-20 |
CA1019344A (fr) | 1977-10-18 |
GB1404098A (en) | 1975-08-28 |
FR2229690B1 (fr) | 1976-12-24 |
FR2229690A1 (fr) | 1974-12-13 |
AT344723B (de) | 1978-08-10 |
BG21603A3 (bg) | 1976-07-20 |
ATA406174A (de) | 1977-12-15 |
IN142126B (fr) | 1977-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE821983A (fr) | Procede pour la preparation d'hydroxycholesterines | |
RO65658A (fr) | Procede pour la preparation des n-(methoxymethylfurylmethyle-6,7-benzomorphanes et morphinanes | |
BE857199A (fr) | Catalyseur et procede pour la production de nitro-diphenylamines | |
BE808715A (fr) | Procede pour l'oxychloration de l'ethylene | |
BE822990A (fr) | Procede pour la preparation d'hexamethyltetraline | |
RO63722A (fr) | Procede de preparation de l'uree | |
BE810438A (fr) | Procede d'elimination de so2 | |
RO64649A (fr) | Procede pour la preparation des heterocycles contenants d'azote fluoralcoxy-phenyl substitues | |
RO63962A (fr) | Procede pour la purification d'acrylonitrile | |
BE787832A (fr) | Procede pour la preparation d'uree | |
BE798851R (fr) | Procede pour le traitement de grains d'uree | |
RO63099A (fr) | Procede pour la preparation d'uree | |
RO63097A (fr) | Procede pour la preparation des isocyanates | |
BE817761A (fr) | Procede de preparation d'o-benzyltoluenes | |
BE811141A (fr) | Procede pour la transformation catalytique de so2 en so3 | |
BE790693A (fr) | Procede pour la purification de l'isoprene | |
BE815096A (fr) | Procede pour diminuer la teneur en biuret de l'uree | |
BE890118A (fr) | Procede de production d'uree | |
BE809499A (fr) | Procede et reactif pour le dosage de la creatinekinase | |
BE815971A (fr) | Procede de preparation d'amines et d'urees substituees | |
BE816832A (fr) | Procede et catalyseur pour la preparation d'epoxyalcools | |
BE814949A (fr) | Procede d'alkylation et catalyseurs utiles pour ce procede | |
BE789841A (fr) | Procede pour la realisation d'elements de construction | |
BE809494A (fr) | Procede pour la preparation de 1,4-dioxanne | |
BE744890A (fr) | Procede pour le traitement de grains d'uree |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: GUANOS Y FERTILIZANTES DE MEXICO S.A. Effective date: 19870531 |