CH468356A - Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature - Google Patents

Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature

Info

Publication number
CH468356A
CH468356A CH499766A CH499766A CH468356A CH 468356 A CH468356 A CH 468356A CH 499766 A CH499766 A CH 499766A CH 499766 A CH499766 A CH 499766A CH 468356 A CH468356 A CH 468356A
Authority
CH
Switzerland
Prior art keywords
synthesis
urea
ammonia
working
carbon dioxide
Prior art date
Application number
CH499766A
Other languages
German (de)
Inventor
Anton Dipl-Masch-Ing Ledergerber
Lung-Pao Dipl Ing Chen
Alfred Dipl Ing Buck
Original Assignee
Inventa Ag
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 Inventa Ag filed Critical Inventa Ag
Priority to CH499766A priority Critical patent/CH468356A/en
Priority to DE19661568845 priority patent/DE1568845A1/en
Priority to FR70377A priority patent/FR1487249A/en
Priority to BE684673D priority patent/BE684673A/xx
Priority to DK1567A priority patent/DK118013B/en
Priority to AT317567A priority patent/AT272360B/en
Priority to NL6704780A priority patent/NL6704780A/xx
Priority to GB1569767A priority patent/GB1124868A/en
Publication of CH468356A publication Critical patent/CH468356A/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)
CH499766A 1966-04-05 1966-04-05 Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature CH468356A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH499766A CH468356A (en) 1966-04-05 1966-04-05 Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature
DE19661568845 DE1568845A1 (en) 1966-04-05 1966-06-06 Process for the production of urea from ammonia and carbon dioxide
FR70377A FR1487249A (en) 1966-04-05 1966-07-21 Process for manufacturing urea from ammonia and carbon dioxide
BE684673D BE684673A (en) 1966-04-05 1966-07-27
DK1567A DK118013B (en) 1966-04-05 1967-03-28 Process for working up the synthesis mixture obtained by urea synthesis from ammonia and carbon dioxide.
AT317567A AT272360B (en) 1966-04-05 1967-04-03 Process for working up the urea synthesis mixture
NL6704780A NL6704780A (en) 1966-04-05 1967-04-04
GB1569767A GB1124868A (en) 1966-04-05 1967-04-05 Preparation of urea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH499766A CH468356A (en) 1966-04-05 1966-04-05 Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature

Publications (1)

Publication Number Publication Date
CH468356A true CH468356A (en) 1969-02-15

Family

ID=4286155

Family Applications (1)

Application Number Title Priority Date Filing Date
CH499766A CH468356A (en) 1966-04-05 1966-04-05 Process for working up the synthesis mixture obtained in the synthesis of urea from ammonia and carbon dioxide in a synthesis reactor at elevated pressure and elevated temperature

Country Status (7)

Country Link
AT (1) AT272360B (en)
BE (1) BE684673A (en)
CH (1) CH468356A (en)
DE (1) DE1568845A1 (en)
DK (1) DK118013B (en)
GB (1) GB1124868A (en)
NL (1) NL6704780A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832091B1 (en) * 1968-02-12 1973-10-04
NL156686B (en) * 1968-03-16 1978-05-16 Stamicarbon PROCEDURE FOR THE PREPARATION OF UREA IN COMBINATION WITH THE SYNTHESIS OF AMMONIA.
US3984469A (en) * 1969-10-16 1976-10-05 Snam Progetti S.P.A. Process for the production of urea
JPS5189B1 (en) * 1970-03-12 1976-01-05
IT1068268B (en) * 1976-09-09 1985-03-21 Snam Progetti PROCEDURE FOR THE PRODUCTION OF UREA AND PURIFICATION OF WATERS
NL8104040A (en) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv METHOD FOR THE PREPARATION OF UREA.
NL8104039A (en) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv METHOD FOR THE PREPARATION OF UREA.
JPS61109760A (en) * 1984-11-02 1986-05-28 Toyo Eng Corp Production of urea
EP0569629A1 (en) * 1992-05-11 1993-11-18 Union Oil Company of California, dba UNOCAL Method for producing acidic urea solutions
US9248405B2 (en) 2009-10-28 2016-02-02 Oasys Water, Inc. Forward osmosis separation processes
SG10201406756QA (en) 2009-10-30 2014-12-30 Oasys Water Inc Osmotic separation systems and methods
CN105439246A (en) 2011-04-25 2016-03-30 Oasys水有限公司 Osmotic separation systems and methods

Also Published As

Publication number Publication date
BE684673A (en) 1967-01-03
GB1124868A (en) 1968-08-21
AT272360B (en) 1969-07-10
NL6704780A (en) 1967-10-06
DE1568845A1 (en) 1972-04-13
DK118013B (en) 1970-06-29

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