AR047118A1 - Proceso para la preparacion de granulos de urea - Google Patents
Proceso para la preparacion de granulos de ureaInfo
- Publication number
- AR047118A1 AR047118A1 ARP040104122A ARP040104122A AR047118A1 AR 047118 A1 AR047118 A1 AR 047118A1 AR P040104122 A ARP040104122 A AR P040104122A AR P040104122 A ARP040104122 A AR P040104122A AR 047118 A1 AR047118 A1 AR 047118A1
- Authority
- AR
- Argentina
- Prior art keywords
- urea
- weight
- urea granules
- molten
- biuret
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Glanulating (AREA)
- Medicinal Preparation (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Un proceso para preparar gránulos de urea en un granulador de lecho fluido, usando al menos un dispositivo de suministro para introducir urea fundida, bajo la forma de una película, en un lecho fluido con nucleos de urea solidos, después de lo cual los nucleos crecen al solidificarse la urea fundida sobre ellos, donde las cantidades de biuret y agua en la urea fundida y los gránulos de urea satisface la siguiente relacion: bm . bg = 0,1-20; wm . (wm-wg); donde bm = % en peso de biuret en la urea fundida; bg = % en peso de biuret en los gránulos de urea; wm = % en peso de agua en la urea fundida; wg = % en peso de agua en los gránulos de urea.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03078522 | 2003-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
AR047118A1 true AR047118A1 (es) | 2006-01-11 |
Family
ID=34610068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP040104122A AR047118A1 (es) | 2003-11-10 | 2004-11-09 | Proceso para la preparacion de granulos de urea |
Country Status (13)
Country | Link |
---|---|
US (1) | US7498055B2 (es) |
EP (1) | EP1682255B1 (es) |
CN (1) | CN100434152C (es) |
AR (1) | AR047118A1 (es) |
AU (1) | AU2004291238B2 (es) |
BR (1) | BRPI0416384B1 (es) |
CA (1) | CA2545073C (es) |
EA (1) | EA009533B1 (es) |
EG (1) | EG24323A (es) |
MY (1) | MY141017A (es) |
PL (1) | PL1682255T3 (es) |
UA (1) | UA86207C2 (es) |
WO (1) | WO2005049193A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2600771C (en) * | 2005-04-18 | 2016-06-07 | Dsm Ip Assets B.V. | Process for the production of urea-comprising particles |
JP4852270B2 (ja) * | 2005-07-13 | 2012-01-11 | 東洋エンジニアリング株式会社 | 顆粒尿素製品の製造方法 |
EP2077147A1 (en) | 2008-01-04 | 2009-07-08 | Urea Casale S.A. | Fluid bed granulation process and apparatus |
EP2489429A1 (en) * | 2011-02-21 | 2012-08-22 | Urea Casale S.A. | Fluid bed granulation of urea and related apparatus |
EP3112332A1 (en) * | 2015-07-03 | 2017-01-04 | Casale SA | Method for producing solid urea by granulation |
DE102017108842A1 (de) * | 2017-04-25 | 2018-10-25 | Thyssenkrupp Ag | Verfahren und Vorrichtung zur Herstellung von Harnstoff |
DE102019118702A1 (de) * | 2019-07-10 | 2021-01-14 | Thyssenkrupp Ag | Reduzierung der biuretgeneration in der harnstoffproduktion |
EP3995488A1 (en) * | 2020-11-06 | 2022-05-11 | Casale Sa | Process for producing feed-grade urea |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB767716A (en) | 1952-10-25 | 1957-02-06 | Chemical Construction Corp | Improvements in a method for granulating urea |
US3117020A (en) * | 1957-11-29 | 1964-01-07 | Montedison Spa | Process for the spherical granulation of water-soluble nitrogenous material |
CH411834A (de) | 1961-10-10 | 1966-04-30 | Stamicarbon | Biuretarme Harnstoffprills |
GB1581761A (en) * | 1977-06-09 | 1980-12-17 | Azote Sa Cie Neerlandaise | Urea granulation |
JPS6034517B2 (ja) * | 1978-03-03 | 1985-08-09 | 宇部興産株式会社 | 流動層で尿素を造粒する方法 |
JPS5855807B2 (ja) * | 1979-10-08 | 1983-12-12 | 三井東圧化学株式会社 | 造粒方法 |
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 |
NL8302999A (nl) | 1983-08-27 | 1985-03-18 | Unie Van Kunstmestfab Bv | Werkwijze voor het bereiden van granules. |
NL8700913A (nl) * | 1987-04-16 | 1988-11-16 | Nl Stikstof | Werkwijze voor het vervaardigen van kunstmestgranules. |
UA26359C2 (uk) * | 1992-08-07 | 1999-08-30 | Хідро Агрі Слейскіл Б.В. | Спосіб виробhицтва граhул сечовиhи |
US6217630B1 (en) * | 1999-05-03 | 2001-04-17 | Cargill, Incorporated | Conditioned fertilizer product, method for conditioning fertilizer, and method for using conditioned fertilizer product |
EP1205455B1 (en) * | 2000-11-14 | 2012-05-30 | Urea Casale S.A. | Method and apparatus for obtaining urea prills |
CN1288129C (zh) * | 2002-04-16 | 2006-12-06 | 李思斌 | 一种改进的大颗粒尿素组合转鼓造粒方法及设备 |
-
2004
- 2004-10-15 EA EA200600954A patent/EA009533B1/ru not_active IP Right Cessation
- 2004-10-15 WO PCT/EP2004/011678 patent/WO2005049193A1/en active Application Filing
- 2004-10-15 PL PL04790517T patent/PL1682255T3/pl unknown
- 2004-10-15 CN CNB2004800330877A patent/CN100434152C/zh active Active
- 2004-10-15 EP EP04790517.9A patent/EP1682255B1/en active Active
- 2004-10-15 BR BRPI0416384-2A patent/BRPI0416384B1/pt active IP Right Grant
- 2004-10-15 AU AU2004291238A patent/AU2004291238B2/en active Active
- 2004-10-15 UA UAA200605002A patent/UA86207C2/uk unknown
- 2004-10-15 US US10/576,300 patent/US7498055B2/en active Active
- 2004-10-15 CA CA2545073A patent/CA2545073C/en active Active
- 2004-11-09 AR ARP040104122A patent/AR047118A1/es active IP Right Grant
- 2004-11-10 MY MYPI20044722A patent/MY141017A/en unknown
-
2006
- 2006-05-10 EG EGNA2006000446 patent/EG24323A/xx active
Also Published As
Publication number | Publication date |
---|---|
EP1682255B1 (en) | 2016-07-27 |
BRPI0416384A (pt) | 2007-02-21 |
AU2004291238B2 (en) | 2009-09-17 |
EA009533B1 (ru) | 2008-02-28 |
EG24323A (en) | 2009-01-25 |
CN100434152C (zh) | 2008-11-19 |
WO2005049193A1 (en) | 2005-06-02 |
PL1682255T3 (pl) | 2017-02-28 |
CA2545073A1 (en) | 2005-06-02 |
US7498055B2 (en) | 2009-03-03 |
UA86207C2 (uk) | 2009-04-10 |
AU2004291238A1 (en) | 2005-06-02 |
EA200600954A1 (ru) | 2006-08-25 |
CN1878608A (zh) | 2006-12-13 |
US20070059446A1 (en) | 2007-03-15 |
MY141017A (en) | 2010-02-25 |
BRPI0416384B1 (pt) | 2014-07-08 |
CA2545073C (en) | 2013-02-19 |
EP1682255A1 (en) | 2006-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0511504A (pt) | composto ou um sal farmaceuticamente aceitável do mesmo, e, agente preventivo ou terapêutico para uma doença resultante de beta-amilóides | |
EA200400432A1 (ru) | Производные мочевины | |
AR047551A1 (es) | Compuestos activos antritranspirantes de aluminio/ zirconio / glicina, estabilizados con betaina | |
BR0115370A (pt) | Composição em forma de fluido espesso, processo para sua produção e uso de partìculas de gel | |
BRPI0608853B8 (pt) | composições farmacêuticas e processo para a fabricação de microgrânulos de rifaximina gastrorresistentes | |
ES2161874T3 (es) | Composicion oftalmica con viscosidad reducida. | |
AR047118A1 (es) | Proceso para la preparacion de granulos de urea | |
DK2308418T3 (da) | Flowcytometridyse for tilvejebringelse af kønssorteret dyresæd | |
PE20061449A1 (es) | Composiciones farmaceuticas comprendiendo imatinib y un retardador de liberacion | |
WO2008083056A3 (en) | Ligands for imaging cardiac innervation | |
CO6321225A2 (es) | Particulas portadoras sólidas para mejorar la procesabilidad de un agente farmacéutico | |
ATE546114T1 (de) | Antimikrobielles urinsammelsystem | |
AR048954A1 (es) | Proceso para la preparacion de telmisartan. composiciones farmaceuticas | |
WO2003032953A1 (fr) | Granules contenant un agent chimique instable en milieu acide, en concentration elevee | |
CO5231147A1 (es) | Composicion congelante | |
AR033957A1 (es) | Nuevos compuestos | |
MY140630A (en) | Benzimidazole derivatives, compositions containing them, preparation thereof and uses thereof | |
SE0301701D0 (sv) | Benzimidazole derivatives, compositions containing them, preparation thereof and uses thereof | |
AR029795A1 (es) | Derivados de acido 1,2,3,4-tetrahidroquinolin-2-carboxilico sustituidos, procedimientos para su preparacion, su uso para la preparacion de medicamentos y medicamentos que contienen estos compuestos | |
SE0301699D0 (sv) | Benzimidazole derivatives, compositions containing them, preparation thereof and uses thereof | |
SE0302570D0 (sv) | Benzimidazole derivatives, compositions containing them, preparation thereof and uses thereof | |
CA2369232A1 (en) | Fused pyrazolyl compounds | |
DK1102594T3 (da) | Anvendelse af natriumchlorid til nedsættelse af den gastrointestinale toxicitet af derivater af camptothecin | |
BRPI0407639A (pt) | método para preparação de gránulos dispersìveis em água | |
BRPI0414732A (pt) | piridilacetilenos para uso como radiotraçadores e agentes de imageamento |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant, registration |