CA1019344A - Process for reducing the biuret content in urea - Google Patents

Process for reducing the biuret content in urea

Info

Publication number: CA1019344A
Authority: CA; Canada
Prior art keywords: urea; reducing; biuret content; biuret; content
Prior art date: 1973-05-16
Legal status (The legal status 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 status listed.): Expired

Application number

CA200,114A

Other languages

French (fr)

Other versions

CA200114S (en

Inventor

Ramon X. Marin

Jose C. Fuentes

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

GUANOS Y FERTILIZANTES DE MEXICO SA

Original Assignee

GUANOS Y FERTILIZANTES DE MEXICO SA

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.)

1973-05-16

Filing date

1974-05-16

Publication date

1977-10-18

1973-05-16 Priority claimed from IT2416173A external-priority patent/IT987491B/en

1974-05-16 Application filed by GUANOS Y FERTILIZANTES DE MEXICO SA filed Critical GUANOS Y FERTILIZANTES DE MEXICO SA

1977-10-18 Application granted granted Critical

1977-10-18 Publication of CA1019344A publication Critical patent/CA1019344A/en

Status Expired legal-status Critical Current

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)

CA200,114A 1973-05-16 1974-05-16 Process for reducing the biuret content in urea Expired CA1019344A (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 (1)

Publication Number	Publication Date
CA1019344A true CA1019344A (en)	1977-10-18

Family

ID=26256424

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA200,114A Expired CA1019344A (en)	1973-05-16	1974-05-16	Process for reducing the biuret content in 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
RU2472777C1 (en) *	2011-11-23	2013-01-20	Фарид Алекович Батуллин	Method of producing high-purity crystalline carbamide
DE102019118702A1 (en)	2019-07-10	2021-01-14	Thyssenkrupp Ag	REDUCING BIURET GENERATION IN UREA PRODUCTION

1973
- 1973-05-16 GB GB2327273A patent/GB1404098A/en not_active Expired
1974
- 1974-05-13 AR AR253709A patent/AR213610A1/en active
- 1974-05-15 BR BR3961/74A patent/BR7403961D0/en unknown
- 1974-05-15 EG EG175/74A patent/EG11437A/en active
- 1974-05-16 BG BG026705A patent/BG21603A3/en unknown
- 1974-05-16 IN IN1069/CAL/1974A patent/IN142126B/en unknown
- 1974-05-16 DD DD178556A patent/DD113897A5/xx unknown
- 1974-05-16 CS CS743519A patent/CS203001B2/en unknown
- 1974-05-16 NL NL7406618A patent/NL7406618A/xx active Search and Examination
- 1974-05-16 CH CH674574A patent/CH617672A5/en not_active IP Right Cessation
- 1974-05-16 SE SE7406519A patent/SE420196B/en not_active IP Right Cessation
- 1974-05-16 BE BE144365A patent/BE815096A/en not_active IP Right Cessation
- 1974-05-16 FR FR7417058A patent/FR2229690B1/fr not_active Expired
- 1974-05-16 LU LU70102A patent/LU70102A1/xx unknown
- 1974-05-16 AT AT406174A patent/AT344723B/en not_active IP Right Cessation
- 1974-05-16 ZA ZA00743136A patent/ZA743136B/en unknown
- 1974-05-16 CA CA200,114A patent/CA1019344A/en not_active Expired
- 1974-05-16 SU SU742026956A patent/SU953978A3/en active

Also Published As

Publication number	Publication date
ATA406174A (en)	1977-12-15
IN142126B (en)	1977-06-04
DD113897A5 (en)	1975-07-05
DE2423890A1 (en)	1974-12-12
GB1404098A (en)	1975-08-28
CH617672A5 (en)	1980-06-13
CS203001B2 (en)	1981-02-27
DE2423890B2 (en)	1976-04-15
LU70102A1 (en)	1976-04-13
SU953978A3 (en)	1982-08-23
BE815096A (en)	1974-11-18
ZA743136B (en)	1975-08-27
BG21603A3 (en)	1976-07-20
NL7406618A (en)	1974-11-19
AR213610A1 (en)	1979-02-28
FR2229690B1 (en)	1976-12-24
SE420196B (en)	1981-09-21
FR2229690A1 (en)	1974-12-13
EG11437A (en)	1977-08-15
BR7403961D0 (en)	1974-12-24
AT344723B (en)	1978-08-10
AU6904674A (en)	1975-11-20

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