ATA352875A - METHOD FOR PRODUCING A UREA-FORMALDEHYDE DUNGER - Google Patents

METHOD FOR PRODUCING A UREA-FORMALDEHYDE DUNGER

Info

Publication number
ATA352875A
ATA352875A AT352875A AT352875A ATA352875A AT A352875 A ATA352875 A AT A352875A AT 352875 A AT352875 A AT 352875A AT 352875 A AT352875 A AT 352875A AT A352875 A ATA352875 A AT A352875A
Authority
AT
Austria
Prior art keywords
dunger
formaldehyde
urea
producing
formaldehyde dunger
Prior art date
Application number
AT352875A
Other languages
German (de)
Other versions
AT335485B (en
Original Assignee
Saarbergwerke Ag
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 Saarbergwerke Ag filed Critical Saarbergwerke Ag
Publication of ATA352875A publication Critical patent/ATA352875A/en
Application granted granted Critical
Publication of AT335485B publication Critical patent/AT335485B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12—Ureas; Thioureas
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Fertilizers (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT352875A 1974-05-08 1975-05-07 METHOD FOR PRODUCING A UREA-FORMALDEHYDE DUNGER AT335485B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742422238 DE2422238C2 (en) 1974-05-08 1974-05-08 Process for the production of a urea-formaldehyde fertilizer

Publications (2)

Publication Number Publication Date
ATA352875A true ATA352875A (en) 1976-07-15
AT335485B AT335485B (en) 1977-03-10

Family

ID=5914975

Family Applications (1)

Application Number Title Priority Date Filing Date
AT352875A AT335485B (en) 1974-05-08 1975-05-07 METHOD FOR PRODUCING A UREA-FORMALDEHYDE DUNGER

Country Status (5)

Country Link
AT (1) AT335485B (en)
CH (1) CH610288A5 (en)
DE (1) DE2422238C2 (en)
FR (1) FR2270221B1 (en)
NL (1) NL181362C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1152197B (en) * 1982-05-27 1986-12-31 Montedison Spa PROCEDURE FOR THE PREPARATION OF SLOWLY NITROGEN FERTILIZERS
DE3539631C2 (en) * 1985-11-08 1997-07-31 Basf Ag Process for the preparation of oligomethylene urea mixtures
IT1301970B1 (en) * 1998-07-30 2000-07-20 Sadepan Chimica S A S Di Savio PROCEDURE FOR THE FORMULATION OF A STABILIZED NITROGEN FERTILIZER IN LIQUID FORM FOR A NITROGEN RELEASE PROTRACTED OVER TIME.
EP1195365A1 (en) 2000-09-21 2002-04-10 Agra Dünger GmbH Process for preparing methylene-urea polymers
EP2839734A3 (en) 2002-03-26 2015-04-22 Koch Agronomic Services, LLC Slow release nitrogen seed coat
CN115024188B (en) * 2022-01-21 2024-02-23 江苏省农业科学院 Preparation method of nitrogen slow-release type straw seedling raising substrate tray

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528582C (en) * 1929-10-08 1931-07-09 I G Farbenindustrie Akt Ges Process for the production of crystallized condensation products from formaldehyde and ureas

Also Published As

Publication number Publication date
NL7505402A (en) 1975-11-11
CH610288A5 (en) 1979-04-12
FR2270221B1 (en) 1981-10-09
FR2270221A1 (en) 1975-12-05
AT335485B (en) 1977-03-10
NL181362B (en) 1987-03-02
DE2422238C2 (en) 1987-03-26
NL181362C (en) 1987-08-03
DE2422238A1 (en) 1975-11-27

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee