BE815096A - Procede pour diminuer la teneur en biuret de l'uree - Google Patents

Procede pour diminuer la teneur en biuret de l'uree

Info

Publication number
BE815096A
BE815096A BE144365A BE144365A BE815096A BE 815096 A BE815096 A BE 815096A BE 144365 A BE144365 A BE 144365A BE 144365 A BE144365 A BE 144365A BE 815096 A BE815096 A BE 815096A
Authority
BE
Belgium
Prior art keywords
urea
decreasing
biuret content
biuret
content
Prior art date
Application number
BE144365A
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
Priority claimed from IT2416173A external-priority patent/IT987491B/it
Application filed filed Critical
Publication of BE815096A publication Critical patent/BE815096A/fr

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)
BE144365A 1973-05-16 1974-05-16 Procede pour diminuer la teneur en biuret de l'uree BE815096A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2416173A IT987491B (it) 1973-05-16 1973-05-16 Procedimento per ridurre il con tenuto di biureto nella urea
GB2327273A GB1404098A (en) 1973-05-16 1973-05-16 Process for reducing the biuret content in urea

Publications (1)

Publication Number Publication Date
BE815096A true BE815096A (fr) 1974-11-18

Family

ID=26256424

Family Applications (1)

Application Number Title Priority Date Filing Date
BE144365A BE815096A (fr) 1973-05-16 1974-05-16 Procede pour diminuer la teneur en biuret de l'uree

Country Status (18)

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

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 (de) 2004-02-05 2006-01-05 Uhde Gmbh Anlage zur Herstellung von biuretarmem harnstoffhaltigem Düngemittelgranulat
RO131559A2 (ro) * 2011-11-23 2016-12-30 Farid Alekovich Batullin Metodă pentru obţinerea carbamidei cristaline cu puritate ridicată
DE102019118702A1 (de) 2019-07-10 2021-01-14 Thyssenkrupp Ag Reduzierung der biuretgeneration in der harnstoffproduktion

Also Published As

Publication number Publication date
BG21603A3 (fr) 1976-07-20
ZA743136B (en) 1975-08-27
SE420196B (sv) 1981-09-21
FR2229690B1 (fr) 1976-12-24
IN142126B (fr) 1977-06-04
EG11437A (en) 1977-08-15
ATA406174A (de) 1977-12-15
CA1019344A (fr) 1977-10-18
SU953978A3 (ru) 1982-08-23
CS203001B2 (en) 1981-02-27
GB1404098A (en) 1975-08-28
FR2229690A1 (fr) 1974-12-13
DD113897A5 (fr) 1975-07-05
AR213610A1 (es) 1979-02-28
AU6904674A (en) 1975-11-20
AT344723B (de) 1978-08-10
BR7403961D0 (pt) 1974-12-24
CH617672A5 (en) 1980-06-13
NL7406618A (fr) 1974-11-19
DE2423890B2 (de) 1976-04-15
DE2423890A1 (de) 1974-12-12
LU70102A1 (fr) 1976-04-13

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GUANOS Y FERTILIZANTES DE MEXICO S.A.

Effective date: 19870531