IE38973B1 - Purification of a solution of urea - Google Patents

Purification of a solution of urea

Info

Publication number: IE38973B1
Authority: IE; Ireland
Prior art keywords: urea; aqueous solution; purification; solution; vessel
Prior art date: 1973-03-08

Application number

IE00465/74A

Other languages

English (en)

Other versions

IE38973L (en

Original Assignee

Snam Progetti

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.)

1973-03-08

Filing date

1974-03-05

Publication date

1978-07-05

1974-03-05 Application filed by Snam Progetti filed Critical Snam Progetti

1974-09-08 Publication of IE38973L publication Critical patent/IE38973L/xx

1978-07-05 Publication of IE38973B1 publication Critical patent/IE38973B1/xx

Links

XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 4
239000004202 carbamide Substances 0.000 title abstract 4
238000000746 purification Methods 0.000 title 1
239000007864 aqueous solution Substances 0.000 abstract 5
KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 abstract 2
239000007792 gaseous phase Substances 0.000 abstract 2
238000000034 method Methods 0.000 abstract 2
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
229910021529 ammonia Inorganic materials 0.000 abstract 1
BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 abstract 1
238000010438 heat treatment Methods 0.000 abstract 1

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
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

IE00465/74A 1973-03-08 1974-03-05 Purification of a solution of urea IE38973B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT21300/73A IT981191B (it)	1973-03-08	1973-03-08	Procedimento per la purificazione da nh 3 e carbammato della soluzio ne uscente da un reattore di sinte si dell ure

Publications (2)

Publication Number	Publication Date
IE38973L IE38973L (en)	1974-09-08
IE38973B1 true IE38973B1 (en)	1978-07-05

Family

ID=11179741

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IE00465/74A IE38973B1 (en)	1973-03-08	1974-03-05	Purification of a solution of urea

Country Status (25)

Country	Link
JP (2)	JPS49124029A (de)
AR (1)	AR200429A1 (de)
AT (1)	AT342067B (de)
BE (1)	BE811880A (de)
BR (1)	BR7401582D0 (de)
CA (1)	CA1022103A (de)
CH (1)	CH603565A5 (de)
DD (1)	DD112752A5 (de)
DK (1)	DK144008C (de)
EG (1)	EG11031A (de)
ES (1)	ES424334A1 (de)
FR (1)	FR2220516B1 (de)
GB (1)	GB1402249A (de)
IE (1)	IE38973B1 (de)
IN (1)	IN139208B (de)
IT (1)	IT981191B (de)
LU (1)	LU69576A1 (de)
MW (1)	MW874A1 (de)
NL (1)	NL7403054A (de)
PH (1)	PH12740A (de)
RO (1)	RO69510A (de)
SE (1)	SE386145B (de)
TR (1)	TR17998A (de)
ZA (1)	ZA741186B (de)
ZM (1)	ZM4274A1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2955916A (en) *	1955-11-21	1960-10-11	Lonza Electric & Chem Works	Method of producing carbon dioxide and ammonia from intermediate reaction products in the synthesis of urea
FR1534669A (fr) *	1964-02-17	1968-08-02	Allied Chem	Procédé et dispositif de décomposition de carbamate d'ammonium notamment résultant de la synthèse de l'urée ainsi que les produits obtenus par le présent procédé ou procédé similaire

1973
- 1973-03-08 IT IT21300/73A patent/IT981191B/it active
1974
- 1974-02-22 ZA ZA00741186A patent/ZA741186B/xx unknown
- 1974-02-26 TR TR17998A patent/TR17998A/xx unknown
- 1974-02-26 EG EG61/74A patent/EG11031A/xx active
- 1974-02-28 FR FR7406822A patent/FR2220516B1/fr not_active Expired
- 1974-02-28 MW MW8/74*UA patent/MW874A1/xx unknown
- 1974-03-04 AR AR252612A patent/AR200429A1/es active
- 1974-03-04 BR BR1582/74A patent/BR7401582D0/pt unknown
- 1974-03-05 RO RO7477908A patent/RO69510A/ro unknown
- 1974-03-05 BE BE141648A patent/BE811880A/xx not_active IP Right Cessation
- 1974-03-05 JP JP49024872A patent/JPS49124029A/ja active Pending
- 1974-03-05 IE IE00465/74A patent/IE38973B1/xx unknown
- 1974-03-06 CH CH317174A patent/CH603565A5/xx not_active IP Right Cessation
- 1974-03-06 NL NL7403054A patent/NL7403054A/xx not_active Application Discontinuation
- 1974-03-06 DD DD176982A patent/DD112752A5/xx unknown
- 1974-03-06 SE SE7402993A patent/SE386145B/xx not_active IP Right Cessation
- 1974-03-06 GB GB1015374A patent/GB1402249A/en not_active Expired
- 1974-03-06 ZM ZM42/74A patent/ZM4274A1/xx unknown
- 1974-03-07 ES ES424334A patent/ES424334A1/es not_active Expired
- 1974-03-07 CA CA194,352A patent/CA1022103A/en not_active Expired
- 1974-03-07 LU LU69576A patent/LU69576A1/xx unknown
- 1974-03-07 AT AT189874A patent/AT342067B/de not_active IP Right Cessation
- 1974-03-07 DK DK125174A patent/DK144008C/da not_active IP Right Cessation
- 1974-03-08 PH PH15599A patent/PH12740A/en unknown
- 1974-03-19 IN IN592/CAL/74A patent/IN139208B/en unknown
1981
- 1981-03-06 JP JP1981030423U patent/JPS56134344U/ja active Pending

Also Published As

Publication number	Publication date
ES424334A1 (es)	1976-06-01
DE2411205A1 (de)	1974-09-26
RO69510A (ro)	1980-12-30
IE38973L (en)	1974-09-08
DD112752A5 (de)	1975-05-05
CH603565A5 (de)	1978-08-31
IN139208B (de)	1976-05-22
AU6594074A (en)	1975-08-28
LU69576A1 (de)	1974-07-05
ATA189874A (de)	1977-07-15
DK144008B (da)	1981-11-16
SE386145B (sv)	1976-08-02
IT981191B (it)	1974-10-10
EG11031A (en)	1976-11-30
DE2411205B2 (de)	1976-01-15
ZM4274A1 (en)	1974-11-21
MW874A1 (en)	1975-05-13
BR7401582D0 (pt)	1974-11-05
NL7403054A (de)	1974-09-10
CA1022103A (en)	1977-12-06
JPS56134344U (de)	1981-10-12
ZA741186B (en)	1975-01-29
DK144008C (da)	1982-04-26
GB1402249A (en)	1975-08-06
PH12740A (en)	1979-08-09
BE811880A (fr)	1974-07-01
TR17998A (tr)	1976-08-20
JPS49124029A (de)	1974-11-27
AR200429A1 (es)	1974-11-08
AT342067B (de)	1978-03-10
FR2220516A1 (de)	1974-10-04
FR2220516B1 (de)	1978-01-06

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