IN169678B - - Google Patents

Info

Publication number
IN169678B
IN169678B IN663/CAL/88A IN663CA1988A IN169678B IN 169678 B IN169678 B IN 169678B IN 663CA1988 A IN663CA1988 A IN 663CA1988A IN 169678 B IN169678 B IN 169678B
Authority
IN
India
Prior art keywords
pct
reaction mixture
urea
sec
contacted
Prior art date
Application number
IN663/CAL/88A
Other languages
English (en)
Inventor
Max Linton
Anthony Martin Brown
Original Assignee
Austral Pacific Fertilizers
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 Austral Pacific Fertilizers filed Critical Austral Pacific Fertilizers
Publication of IN169678B publication Critical patent/IN169678B/en

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
    • 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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IN663/CAL/88A 1987-08-13 1988-08-04 IN169678B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPI371187 1987-08-13

Publications (1)

Publication Number Publication Date
IN169678B true IN169678B (de) 1991-11-30

Family

ID=3772379

Family Applications (1)

Application Number Title Priority Date Filing Date
IN663/CAL/88A IN169678B (de) 1987-08-13 1988-08-04

Country Status (12)

Country Link
US (1) US5053538A (de)
EP (1) EP0375712B1 (de)
JP (1) JPH03501017A (de)
CN (1) CN1024920C (de)
AT (1) ATE86975T1 (de)
AU (1) AU612703B2 (de)
CA (1) CA1332426C (de)
DE (1) DE3879498D1 (de)
IN (1) IN169678B (de)
NO (1) NO900630L (de)
RO (1) RO105331B1 (de)
WO (1) WO1989001468A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000281638A (ja) 1999-03-26 2000-10-10 Snow Brand Milk Prod Co Ltd 尿素の分離方法
HU223808B1 (hu) * 1999-03-26 2005-02-28 Snow Brand Milk Products Co., Ltd. Eljárás karbamid izolálására, karbamidkompozíciók és eljárás az előállításukra
NL1012575C2 (nl) * 1999-07-12 2001-01-15 Continental Engineering B V Werkwijze ter bereiding van ureum.
US6552224B2 (en) * 2000-06-15 2003-04-22 Urea Casale S.A. Process and plant for the production of urea
CN101148425B (zh) * 2006-09-22 2011-10-12 北京航天石化技术装备工程公司 一种尿素合成方法
IT1395383B1 (it) * 2009-09-09 2012-09-14 Saipem Spa Metodo di separazione di ammoniaca e diossido di carbonio da soluzioni acquose
RO131559A2 (ro) * 2011-11-23 2016-12-30 Farid Alekovich Batullin Metodă pentru obţinerea carbamidei cristaline cu puritate ridicată
EP2690090A1 (de) * 2012-07-27 2014-01-29 Urea Casale SA Konzentration der Harnstofflösung in einem Verfahren zur Harnstoffsynthese

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147174A (en) * 1959-10-14 1964-09-01 Chemical Construction Corp Low moisture urea melt
NL293154A (de) * 1963-02-01 1900-01-01
NO145949C (no) * 1967-09-29 1982-06-30 Snam Progetti Fremgangsmaate for fremstilling av urea
GB1269688A (en) * 1969-11-01 1972-04-06 Simon Eng Dudley Ltd Improvements in or relating to the production of urea
CH562786A5 (de) * 1972-03-22 1975-06-13 Inventa Ag
CH581612A5 (de) * 1973-09-13 1976-11-15 Inventa Ag
JPS5573651A (en) * 1978-11-30 1980-06-03 Toyo Eng Corp Preparation of urea
JPS5750954A (en) * 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
US4331839A (en) * 1980-12-12 1982-05-25 Reliable Electric Company Telephone distribution frame connector assembly
NL8104040A (nl) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
IT1211125B (it) * 1981-10-16 1989-09-29 Ortu Francesco Composti azotati. processo per la preparazione di

Also Published As

Publication number Publication date
RO105331B1 (ro) 1995-05-20
NO900630L (no) 1990-04-11
US5053538A (en) 1991-10-01
JPH03501017A (ja) 1991-03-07
EP0375712A1 (de) 1990-07-04
CA1332426C (en) 1994-10-11
ATE86975T1 (de) 1993-04-15
AU2310888A (en) 1989-03-09
EP0375712B1 (de) 1993-03-17
CN1024920C (zh) 1994-06-08
NO900630D0 (no) 1990-02-09
AU612703B2 (en) 1991-07-18
DE3879498D1 (de) 1993-04-22
WO1989001468A1 (en) 1989-02-23
EP0375712A4 (de) 1990-07-03
CN1033992A (zh) 1989-07-19

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