GB1304718A - - Google Patents

Info

Publication number
GB1304718A
GB1304718A GB2351770A GB2351770A GB1304718A GB 1304718 A GB1304718 A GB 1304718A GB 2351770 A GB2351770 A GB 2351770A GB 2351770 A GB2351770 A GB 2351770A GB 1304718 A GB1304718 A GB 1304718A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
urea
ammonia
condensed
paraformaldehyde
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
GB2351770A
Other languages
English (en)
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 filed Critical
Publication of GB1304718A publication Critical patent/GB1304718A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
    • C07G99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
GB2351770A 1969-05-16 1970-05-14 Expired GB1304718A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6907509A NL6907509A (enrdf_load_stackoverflow) 1969-05-16 1969-05-16

Publications (1)

Publication Number Publication Date
GB1304718A true GB1304718A (enrdf_load_stackoverflow) 1973-01-31

Family

ID=19806962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2351770A Expired GB1304718A (enrdf_load_stackoverflow) 1969-05-16 1970-05-14

Country Status (4)

Country Link
BE (1) BE750394A (enrdf_load_stackoverflow)
FR (1) FR2047754A5 (enrdf_load_stackoverflow)
GB (1) GB1304718A (enrdf_load_stackoverflow)
NL (1) NL6907509A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071488A1 (de) * 1999-05-21 2000-11-30 AGRA Dünger GmbH Verfahren zur herstellung eines harnstoff-formaldehyd-düngers
CN114685191A (zh) * 2022-06-02 2022-07-01 中北大学 脲甲醛缓释肥高温非均相缩聚精简制备工艺及其施用方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1152197B (it) * 1982-05-27 1986-12-31 Montedison Spa Procedimento per la preparazione di fertilizzanti a lenta cessione di azoto
DE3539631C2 (de) * 1985-11-08 1997-07-31 Basf Ag Verfahren zur Herstellung von Oligomethylenharnstoffgemischen
US5266097A (en) * 1992-12-31 1993-11-30 The Vigoro Corporation Aminoureaformaldehyde fertilizer method and composition
IT1301970B1 (it) * 1998-07-30 2000-07-20 Sadepan Chimica S A S Di Savio Procedimento per la formulazione di un fertilizzante azotato stabilein forma liquida per un rilascio dell'azoto protratto nel tempo.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000071488A1 (de) * 1999-05-21 2000-11-30 AGRA Dünger GmbH Verfahren zur herstellung eines harnstoff-formaldehyd-düngers
CN114685191A (zh) * 2022-06-02 2022-07-01 中北大学 脲甲醛缓释肥高温非均相缩聚精简制备工艺及其施用方法

Also Published As

Publication number Publication date
BE750394A (fr) 1970-11-16
FR2047754A5 (enrdf_load_stackoverflow) 1971-03-12
NL6907509A (enrdf_load_stackoverflow) 1970-11-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee