ES476211A1 - Un metodo de preparar un compuesto de urea. - Google Patents

Un metodo de preparar un compuesto de urea.

Info

Publication number
ES476211A1
ES476211A1 ES476211A ES476211A ES476211A1 ES 476211 A1 ES476211 A1 ES 476211A1 ES 476211 A ES476211 A ES 476211A ES 476211 A ES476211 A ES 476211A ES 476211 A1 ES476211 A1 ES 476211A1
Authority
ES
Spain
Prior art keywords
salt
metal
urea
compsn
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES476211A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisons Ltd
Original Assignee
Fisons Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fisons Ltd filed Critical Fisons Ltd
Publication of ES476211A1 publication Critical patent/ES476211A1/es
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C5/00Fertilisers containing other nitrates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

Un método de preparar un compuesto de urea con sal, óxido y/o hidróxido de un metal que tenga un índice de oxidación de 2, por lo menos, y que se caracteriza por tener el metal en la proporción mínima de una parte mola por 40 partes molares de urea y que sea capaz de formar partículas coloidales de una sal hidrolizada o parcialmente hidrolizada o de un óxido o un óxido hidratado al elevar el pH de una solución acuosa de 0,2M de un compuesto o una sal de metal a un valor situado entre 2 y 5, método que incluirá el poner en contacto la urea con la sal de metal, el óxido y/o hidróxido, seleccionándose de preferencia el metal entre el hierro y el aluminio y se emplee en la forma de una sal de los mismos, teniendo una solubilidad de por lo menos 1g/100 ml de agua, por ejemplo, un sulfato, nitrato o haluro de Fe+++ o Al+++, y, cuando la cantidad de urea sea la necesaria para satisfacer el valor de coordinación del metal, el producto se forma en partículas cuyo 50% en peso, por lo menos, tenga untamaño que oscile ente 0,5 5 mm.
ES476211A 1977-12-22 1978-12-21 Un metodo de preparar un compuesto de urea. Expired ES476211A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5338477 1977-12-22

Publications (1)

Publication Number Publication Date
ES476211A1 true ES476211A1 (es) 1979-05-01

Family

ID=10467614

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476211A Expired ES476211A1 (es) 1977-12-22 1978-12-21 Un metodo de preparar un compuesto de urea.

Country Status (16)

Country Link
JP (1) JPS5491471A (es)
AU (1) AU4264778A (es)
BE (1) BE872917A (es)
BR (1) BR7808419A (es)
DD (1) DD140742A5 (es)
DE (1) DE2855036A1 (es)
DK (1) DK531278A (es)
ES (1) ES476211A1 (es)
FI (1) FI783878A (es)
FR (1) FR2412512A1 (es)
NL (1) NL7812252A (es)
NO (1) NO784334L (es)
PL (1) PL211964A1 (es)
RO (1) RO75062A (es)
SE (1) SE7812996L (es)
ZA (1) ZA787154B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL184769C (nl) * 1981-07-03 1989-11-01 Azote Sa Cie Neerlandaise Werkwijze voor het vervaardigen van ureumkorrels.
NL8103210A (nl) * 1981-07-03 1983-02-01 Azote Sa Cie Neerlandaise Werkwijze voor het maken van ureumkorrels.
GB2285803A (en) * 1993-12-30 1995-07-26 Norsk Hydro As Urea - containing fertilizer
AUPM383594A0 (en) * 1994-02-11 1994-03-10 Incitec Ltd Granular urea
BR112012018832A2 (pt) * 2010-01-27 2016-04-12 Bijam Biosciences Private Ltd composição de uréia funcionalmente eficaz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR820023A (fr) * 1937-03-31 1937-10-30 Procédé pour fabriquer un engrais en employant comme matière première la cyanamide calcique
FR1021275A (fr) * 1950-07-03 1953-02-17 Applic Nouvelles Agricoles Soc Produit pour la fabrication de fumier artificiel et procédé pour sa mise en oeuvre
GB803052A (en) * 1953-10-29 1958-10-15 Dow Chemical Co Compositions for improving the soil
FR1159019A (fr) * 1956-10-08 1958-06-23 Nouveaux engrais et leur procédé de fabrication
GB1157400A (en) * 1968-05-02 1969-07-09 Exxon Research Engineering Co Urea-Containing Fertilisers
US4073633A (en) * 1976-05-17 1978-02-14 Union Oil Company Of California Topical nitrogen fertilization method

Also Published As

Publication number Publication date
NO784334L (no) 1979-06-25
AU4264778A (en) 1979-06-28
NL7812252A (nl) 1979-06-26
JPS5491471A (en) 1979-07-19
SE7812996L (sv) 1979-06-23
DE2855036A1 (de) 1979-07-05
FR2412512A1 (fr) 1979-07-20
BE872917A (fr) 1979-06-20
DD140742A5 (de) 1980-03-26
DK531278A (da) 1979-06-23
PL211964A1 (pl) 1979-09-10
FI783878A (fi) 1979-06-23
ZA787154B (en) 1979-12-27
RO75062A (ro) 1980-10-30
BR7808419A (pt) 1979-08-07

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