ZA865985B - Process for the preparation of urea - Google Patents

Process for the preparation of urea

Info

Publication number
ZA865985B
ZA865985B ZA865985A ZA865985A ZA865985B ZA 865985 B ZA865985 B ZA 865985B ZA 865985 A ZA865985 A ZA 865985A ZA 865985 A ZA865985 A ZA 865985A ZA 865985 B ZA865985 B ZA 865985B
Authority
ZA
South Africa
Prior art keywords
urea
preparation
Prior art date
Application number
ZA865985A
Other languages
English (en)
Inventor
Jozef Hubert Meessen
Rudolf Sipkema
Original Assignee
Stamicarbon
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
Application filed by Stamicarbon filed Critical Stamicarbon
Publication of ZA865985B publication Critical patent/ZA865985B/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
    • C07C273/04—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 from carbon dioxide and ammonia
ZA865985A 1985-08-12 1986-08-08 Process for the preparation of urea ZA865985B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502227A NL8502227A (nl) 1985-08-12 1985-08-12 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
ZA865985B true ZA865985B (en) 1987-03-25

Family

ID=19846410

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA865985A ZA865985B (en) 1985-08-12 1986-08-08 Process for the preparation of urea

Country Status (19)

Country Link
US (1) US4801745A (xx)
EP (1) EP0212744A1 (xx)
JP (1) JPS6239559A (xx)
KR (1) KR870002057A (xx)
CN (1) CN86105256A (xx)
AU (1) AU592360B2 (xx)
BG (1) BG45384A3 (xx)
BR (1) BR8603801A (xx)
ES (1) ES2000389A6 (xx)
GR (1) GR862097B (xx)
HU (1) HUT45970A (xx)
IL (1) IL79678A0 (xx)
NL (1) NL8502227A (xx)
NO (1) NO163097C (xx)
OA (1) OA08383A (xx)
SU (1) SU1494865A3 (xx)
TR (1) TR22843A (xx)
YU (1) YU139786A (xx)
ZA (1) ZA865985B (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8800259A (nl) * 1988-02-04 1989-09-01 Stamicarbon Werkwijze voor het concentreren van een ureumoplossing.
IT1232669B (it) * 1989-09-15 1992-03-02 Snam Progetti Procedimento per la produzione di urea con elevato rendimento energetico.
EP0544056B1 (en) * 1991-11-14 1998-06-24 Urea Casale S.A. Process for urea production with differentiated yield reaction spaces
US5523482A (en) * 1993-05-14 1996-06-04 Urea Casale S.A. Process and plant for the production of urea in reaction spaces with different yields
ZA96686B (en) * 1995-02-01 1996-08-16 Urea Casale Sa Process and plant for the production of urea with high conversion yield and low energy consumption
IT1274362B (it) * 1995-02-16 1997-07-17 Snam Progetti Procedimento ad alta resa per la sintesi dell'urea
US5597454A (en) * 1995-04-06 1997-01-28 Lee; Jing M. Process for producing urea
JP4358428B2 (ja) 2000-11-01 2009-11-04 東洋エンジニアリング株式会社 尿素製造方法
DE60201384T3 (de) † 2001-07-23 2012-01-26 Toyo Engineering Corp. Verfahren zur Harnstoffsynthese
JP4627959B2 (ja) * 2001-07-23 2011-02-09 東洋エンジニアリング株式会社 尿素合成方法
EP1918273A1 (en) * 2006-11-04 2008-05-07 Urea Casale S.A. Process for urea production and related plant
ITMI20071029A1 (it) 2007-05-22 2008-11-23 Snam Progetti Procedimento migliorato per la sintesi di urea
EP2343274A1 (en) * 2010-01-07 2011-07-13 Stamicarbon B.V. A urea stripping process for the production of urea
ITMI20110804A1 (it) 2011-05-10 2012-11-11 Saipem Spa "processo ad alta resa per la sintesi dell'urea"
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper
US10501407B2 (en) 2015-09-08 2019-12-10 Toyo Engineering Corporation Urea manufacturing method and urea manufacturing apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406201A (en) * 1965-06-18 1968-10-15 Exxon Research Engineering Co Urea synthesis
NL172058C (nl) * 1972-06-12 1983-07-01 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
JPS5268129A (en) * 1975-12-05 1977-06-06 Mitsui Toatsu Chem Inc Recovery of unreacted material and heat on urea synthesis
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
IT1065422B (it) * 1976-12-23 1985-02-25 Snam Progetti Processo ammoniaca-urea integrato per la produzione di urea
JPS5750954A (en) * 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
GB2089786B (en) * 1980-12-23 1985-02-20 Mitsui Toatsu Chemicals Process for synthesizing urea
NL8303888A (nl) * 1983-11-13 1985-06-03 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.

Also Published As

Publication number Publication date
AU592360B2 (en) 1990-01-11
NO863211L (no) 1987-02-13
NL8502227A (nl) 1987-03-02
NO163097B (no) 1989-12-27
NO863211D0 (no) 1986-08-08
CN86105256A (zh) 1987-04-01
AU6103986A (en) 1987-02-19
GR862097B (en) 1986-12-30
YU139786A (en) 1988-04-30
TR22843A (tr) 1988-08-22
IL79678A0 (en) 1986-11-30
HUT45970A (en) 1988-09-28
OA08383A (fr) 1988-02-29
SU1494865A3 (ru) 1989-07-15
US4801745A (en) 1989-01-31
KR870002057A (ko) 1987-03-28
JPS6239559A (ja) 1987-02-20
EP0212744A1 (en) 1987-03-04
ES2000389A6 (es) 1988-02-16
BG45384A3 (xx) 1989-05-15
NO163097C (no) 1990-04-04
BR8603801A (pt) 1987-03-17

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