ATA406174A - PROCEDURE FOR REDUCING THE BIURETIC CONTENT OF UREA - Google Patents

PROCEDURE FOR REDUCING THE BIURETIC CONTENT OF UREA

Info

Publication number
ATA406174A
ATA406174A AT406174A AT406174A ATA406174A AT A406174 A ATA406174 A AT A406174A AT 406174 A AT406174 A AT 406174A AT 406174 A AT406174 A AT 406174A AT A406174 A ATA406174 A AT A406174A
Authority
AT
Austria
Prior art keywords
biuretic
urea
procedure
reducing
content
Prior art date
Application number
AT406174A
Other languages
German (de)
Other versions
AT344723B (en
Original Assignee
Mexico Guanos
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
Priority claimed from IT2416173A external-priority patent/IT987491B/en
Application filed by Mexico Guanos filed Critical Mexico Guanos
Publication of ATA406174A publication Critical patent/ATA406174A/en
Application granted granted Critical
Publication of AT344723B publication Critical patent/AT344723B/en

Links

Classifications

    • 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
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
AT406174A 1973-05-16 1974-05-16 METHOD FOR REDUCING THE BIURET CONTENT OF UREA AT344723B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2416173A IT987491B (en) 1973-05-16 1973-05-16 PROCEDURE TO REDUCE THE CONTENT OF BIURET IN THE UREA
GB2327273A GB1404098A (en) 1973-05-16 1973-05-16 Process for reducing the biuret content in urea

Publications (2)

Publication Number Publication Date
ATA406174A true ATA406174A (en) 1977-12-15
AT344723B AT344723B (en) 1978-08-10

Family

ID=26256424

Family Applications (1)

Application Number Title Priority Date Filing Date
AT406174A AT344723B (en) 1973-05-16 1974-05-16 METHOD FOR REDUCING THE BIURET CONTENT OF UREA

Country Status (18)

Country Link
AR (1) AR213610A1 (en)
AT (1) AT344723B (en)
BE (1) BE815096A (en)
BG (1) BG21603A3 (en)
BR (1) BR7403961D0 (en)
CA (1) CA1019344A (en)
CH (1) CH617672A5 (en)
CS (1) CS203001B2 (en)
DD (1) DD113897A5 (en)
EG (1) EG11437A (en)
FR (1) FR2229690B1 (en)
GB (1) GB1404098A (en)
IN (1) IN142126B (en)
LU (1) LU70102A1 (en)
NL (1) NL7406618A (en)
SE (1) SE420196B (en)
SU (1) SU953978A3 (en)
ZA (1) ZA743136B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102004005907B4 (en) 2004-02-05 2006-01-05 Uhde Gmbh Plant for the production of biuretarmem urea-containing fertilizer granules
RO131559A2 (en) * 2011-11-23 2016-12-30 Farid Alekovich Batullin Method for preparing crystalline carbamide of high purity
DE102019118702A1 (en) 2019-07-10 2021-01-14 Thyssenkrupp Ag REDUCING BIURET GENERATION IN UREA PRODUCTION

Also Published As

Publication number Publication date
DE2423890A1 (en) 1974-12-12
BG21603A3 (en) 1976-07-20
NL7406618A (en) 1974-11-19
AT344723B (en) 1978-08-10
CA1019344A (en) 1977-10-18
LU70102A1 (en) 1976-04-13
FR2229690A1 (en) 1974-12-13
IN142126B (en) 1977-06-04
GB1404098A (en) 1975-08-28
AU6904674A (en) 1975-11-20
DE2423890B2 (en) 1976-04-15
FR2229690B1 (en) 1976-12-24
EG11437A (en) 1977-08-15
CS203001B2 (en) 1981-02-27
BE815096A (en) 1974-11-18
ZA743136B (en) 1975-08-27
DD113897A5 (en) 1975-07-05
SE420196B (en) 1981-09-21
AR213610A1 (en) 1979-02-28
CH617672A5 (en) 1980-06-13
BR7403961D0 (en) 1974-12-24
SU953978A3 (en) 1982-08-23

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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