NL181362B - METHOD FOR PREPARING A UREA-FORMALDEHYDE FERTILIZER - Google Patents

METHOD FOR PREPARING A UREA-FORMALDEHYDE FERTILIZER

Info

Publication number
NL181362B
NL181362B NL7505402A NL7505402A NL181362B NL 181362 B NL181362 B NL 181362B NL 7505402 A NL7505402 A NL 7505402A NL 7505402 A NL7505402 A NL 7505402A NL 181362 B NL181362 B NL 181362B
Authority
NL
Netherlands
Prior art keywords
urea
preparing
formaldehyde fertilizer
fertilizer
formaldehyde
Prior art date
Application number
NL7505402A
Other languages
Dutch (nl)
Other versions
NL181362C (en
NL7505402A (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 NL7505402A publication Critical patent/NL7505402A/en
Publication of NL181362B publication Critical patent/NL181362B/en
Application granted granted Critical
Publication of NL181362C publication Critical patent/NL181362C/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)
NL7505402A 1974-05-08 1975-05-07 METHOD FOR PREPARING A UREA-FORMALDEHYDE FERTILIZER NL181362C (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 (3)

Publication Number Publication Date
NL7505402A NL7505402A (en) 1975-11-11
NL181362B true NL181362B (en) 1987-03-02
NL181362C NL181362C (en) 1987-08-03

Family

ID=5914975

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7505402A NL181362C (en) 1974-05-08 1975-05-07 METHOD FOR PREPARING A UREA-FORMALDEHYDE FERTILIZER

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
US6936681B1 (en) 2002-03-26 2005-08-30 Georgia Pacific Resins, Inc. Slow release nitrogen fertilizer
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
DE2422238C2 (en) 1987-03-26
NL181362C (en) 1987-08-03
FR2270221A1 (en) 1975-12-05
NL7505402A (en) 1975-11-11
CH610288A5 (en) 1979-04-12
ATA352875A (en) 1976-07-15
AT335485B (en) 1977-03-10
DE2422238A1 (en) 1975-11-27
FR2270221B1 (en) 1981-10-09

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee