ZA743136B - Process for reducing the biuret content in urea - Google Patents

Process for reducing the biuret content in urea

Info

Publication number
ZA743136B
ZA743136B ZA00743136A ZA743136A ZA743136B ZA 743136 B ZA743136 B ZA 743136B ZA 00743136 A ZA00743136 A ZA 00743136A ZA 743136 A ZA743136 A ZA 743136A ZA 743136 B ZA743136 B ZA 743136B
Authority
ZA
South Africa
Prior art keywords
urea
reducing
biuret content
biuret
content
Prior art date
Application number
ZA00743136A
Other languages
English (en)
Inventor
J Fuentes
R Marin
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/it
Application filed by Mexico Guanos filed Critical Mexico Guanos
Publication of ZA743136B publication Critical patent/ZA743136B/xx

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)
ZA00743136A 1973-05-16 1974-05-16 Process for reducing the biuret content in urea ZA743136B (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
ZA743136B true ZA743136B (en) 1975-08-27

Family

ID=26256424

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00743136A ZA743136B (en) 1973-05-16 1974-05-16 Process for reducing the biuret content in urea

Country Status (18)

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

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
CS203001B2 (en) 1981-02-27
IN142126B (xx) 1977-06-04
DE2423890B2 (de) 1976-04-15
AU6904674A (en) 1975-11-20
FR2229690B1 (xx) 1976-12-24
CH617672A5 (en) 1980-06-13
NL7406618A (xx) 1974-11-19
EG11437A (en) 1977-08-15
LU70102A1 (xx) 1976-04-13
BG21603A3 (xx) 1976-07-20
BR7403961D0 (pt) 1974-12-24
SU953978A3 (ru) 1982-08-23
AR213610A1 (es) 1979-02-28
CA1019344A (en) 1977-10-18
GB1404098A (en) 1975-08-28
AT344723B (de) 1978-08-10
DD113897A5 (xx) 1975-07-05
ATA406174A (de) 1977-12-15
SE420196B (sv) 1981-09-21
DE2423890A1 (de) 1974-12-12
FR2229690A1 (xx) 1974-12-13
BE815096A (fr) 1974-11-18

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