ZA718580B - Process for preparing urea - Google Patents

Process for preparing urea

Info

Publication number
ZA718580B
ZA718580B ZA718580A ZA718580A ZA718580B ZA 718580 B ZA718580 B ZA 718580B ZA 718580 A ZA718580 A ZA 718580A ZA 718580 A ZA718580 A ZA 718580A ZA 718580 B ZA718580 B ZA 718580B
Authority
ZA
South Africa
Prior art keywords
preparing urea
urea
preparing
Prior art date
Application number
ZA718580A
Other languages
English (en)
Inventor
J Logemann
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 ZA718580B publication Critical patent/ZA718580B/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Microwave Tubes (AREA)
ZA718580A 1970-12-31 1971-12-22 Process for preparing urea ZA718580B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7019056,A NL168506C (nl) 1970-12-31 1970-12-31 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
ZA718580B true ZA718580B (en) 1972-09-27

Family

ID=19811940

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA718580A ZA718580B (en) 1970-12-31 1971-12-22 Process for preparing urea

Country Status (23)

Country Link
US (1) US3867442A (xx)
JP (1) JPS511691B1 (xx)
AT (1) AT319965B (xx)
BE (1) BE777470A (xx)
BG (1) BG26665A3 (xx)
BR (1) BR7108671D0 (xx)
CA (1) CA973564A (xx)
CS (1) CS171245B2 (xx)
DE (1) DE2165711C3 (xx)
ES (1) ES398493A1 (xx)
FI (1) FI54914C (xx)
FR (1) FR2121068A5 (xx)
GB (1) GB1365707A (xx)
HU (1) HU168681B (xx)
IT (1) IT945737B (xx)
NL (1) NL168506C (xx)
NO (1) NO135246C (xx)
PL (1) PL90701B1 (xx)
RO (1) RO63722A (xx)
SE (1) SE420719B (xx)
SU (1) SU651692A3 (xx)
YU (1) YU39704B (xx)
ZA (1) ZA718580B (xx)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092358A (en) * 1968-09-03 1978-05-30 Snamprogetti S.P.A. Process for the production of urea having a low carbamate content
BE790015A (fr) * 1971-10-19 1973-04-12 Mavrovic Ivo Synthese de l'uree avec conversion et recuperation de chaleur ameliorees
CA1017535A (en) * 1974-03-29 1977-09-20 Charles Vydra Method and apparatus for the continuous condensation of a gaseous mixture of ammonia, carbon dioxide and water vapour
NL7612162A (nl) * 1976-11-03 1978-05-08 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2.
NO150512C (no) * 1977-05-05 1984-10-31 Montedison Spa Fremgangsmaate ved fremstilling av urea.
JPS55119464A (en) * 1979-03-09 1980-09-13 Ee K Deyuaru Kk Sealant coating device to screw thread of joint and valve
NL8101174A (nl) * 1981-03-11 1982-10-01 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
NL8104040A (nl) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
NL8104039A (nl) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
NL8201652A (nl) * 1982-04-21 1983-11-16 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
NL8303888A (nl) * 1983-11-13 1985-06-03 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
WO1996020170A1 (en) * 1994-12-23 1996-07-04 Urea Casale S.A. Process and plant for urea production with reaction spaces having differentiated yields
IT1275451B (it) † 1995-06-30 1997-08-07 Snam Progetti Procedimento per la sintesi dell'urea comprendente due separate zone di reazione
JP3987607B2 (ja) * 1996-10-07 2007-10-10 東洋エンジニアリング株式会社 改良された尿素合成方法および装置
EP1491526A1 (en) * 2003-06-27 2004-12-29 Urea Casale S.A. Process and plant for urea production
US7238231B1 (en) * 2006-11-16 2007-07-03 Tronox Llc Process for manufacturing zirconia-treated titanium dioxide pigments
DE102010009502A1 (de) * 2010-02-26 2011-09-01 Spawnt Private S.À.R.L. Verfahren zur Herstellung von Harnstoff
CN110590605B (zh) * 2019-10-11 2021-08-24 重庆化工职业学院 一种氨基甲酸甲酯的生产方法
CN114733336A (zh) * 2022-04-08 2022-07-12 华润电力(宁武)有限公司 一种防止尿素溶液输送管路堵塞的系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310376A (en) * 1963-09-09 1967-03-21 Chemical Construction Corp Process for combined production of ammonia and urea
US3406201A (en) * 1965-06-18 1968-10-15 Exxon Research Engineering Co Urea synthesis
US3503970A (en) * 1967-07-19 1970-03-31 Mitsui Toatsu Chemicals Integrated process for producing urea and melamine

Also Published As

Publication number Publication date
AU3730171A (en) 1973-06-28
ES398493A1 (es) 1974-08-16
BE777470A (fr) 1972-06-29
NL168506C (nl) 1982-04-16
CA973564A (en) 1975-08-26
JPS511691B1 (xx) 1976-01-20
NO135246B (xx) 1976-11-29
IT945737B (it) 1973-05-10
PL90701B1 (xx) 1977-01-31
NL7019056A (xx) 1972-07-04
BG26665A3 (bg) 1979-05-15
HU168681B (xx) 1976-06-28
CS171245B2 (xx) 1976-10-29
NL168506B (nl) 1981-11-16
FI54914C (fi) 1979-04-10
FR2121068A5 (xx) 1972-08-18
GB1365707A (en) 1974-09-04
US3867442A (en) 1975-02-18
YU332671A (en) 1982-02-28
SU651692A3 (ru) 1979-03-05
DE2165711C3 (de) 1974-01-31
SE420719B (sv) 1981-10-26
NO135246C (xx) 1977-03-09
DE2165711B2 (de) 1973-06-28
AT319965B (de) 1975-01-27
YU39704B (en) 1985-04-30
RO63722A (fr) 1978-12-15
DE2165711A1 (de) 1972-07-06
FI54914B (fi) 1978-12-29
BR7108671D0 (pt) 1973-05-15

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