DK104885C - Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak. - Google Patents

Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak.

Info

Publication number
DK104885C
DK104885C DK182961AA DK182961A DK104885C DK 104885 C DK104885 C DK 104885C DK 182961A A DK182961A A DK 182961AA DK 182961 A DK182961 A DK 182961A DK 104885 C DK104885 C DK 104885C
Authority
DK
Denmark
Prior art keywords
urea
ammonia
synthesis
return
carbon dioxide
Prior art date
Application number
DK182961AA
Other languages
English (en)
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
Application granted granted Critical
Publication of DK104885C publication Critical patent/DK104885C/da

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
    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK182961AA 1960-07-28 1961-05-04 Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak. DK104885C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH859760A CH387015A (de) 1960-07-28 1960-07-28 Verfahren zur Rückführung von Kohlendioxyd und Ammoniak bei der Harnstoffsynthese

Publications (1)

Publication Number Publication Date
DK104885C true DK104885C (da) 1966-07-18

Family

ID=4342422

Family Applications (1)

Application Number Title Priority Date Filing Date
DK182961AA DK104885C (da) 1960-07-28 1961-05-04 Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak.

Country Status (9)

Country Link
US (1) US3248425A (da)
BE (1) BE605557A (da)
CH (1) CH387015A (da)
DE (1) DE1252198B (da)
DK (1) DK104885C (da)
FI (1) FI40710B (da)
GB (1) GB983812A (da)
NL (1) NL265331A (da)
SE (1) SE308517B (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541146A (en) * 1966-11-29 1970-11-17 Inventa Ag Process for the separation and recirculation of unreacted starting gases in the urea synthesis
US3668250A (en) * 1969-08-19 1972-06-06 Chemical Construction Corp Urea synthesis process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429483A (en) * 1920-07-09 1922-09-19 Basf Ag Process of manufacturing urea
DE372262C (de) * 1920-08-17 1923-03-26 Basf Ag Verfahren zur Darstellung von Harnstoff
US2848493A (en) * 1955-06-27 1958-08-19 Allied Chem Process for synthesis of urea

Also Published As

Publication number Publication date
FI40710B (da) 1969-01-31
GB983812A (en) 1965-02-17
BE605557A (fr) 1961-11-16
CH387015A (de) 1965-01-31
US3248425A (en) 1966-04-26
DE1252198B (da) 1900-01-01
NL265331A (da) 1900-01-01
SE308517B (da) 1969-02-17

Similar Documents

Publication Publication Date Title
NL139282B (nl) Werkwijze voor het afzonderlijk winnen van zwaveldioxyde en ammoniak, uit watervrij ammoniumsulfaat.
AR204277A1 (es) Procedimiento integrado para la sintetesis de la urea y del amoniaco
DK107326C (da) Herbicid og fremgangsmåde til fremstilling af et benzensulfonylcarbamat eller alkalimetal-, ammonium- eller aminsalte deraf til anvendelse i herbicidet.
DK118013B (da) Fremgangsmåde til oparbejdning af den ved urinstofsyntese ud fra ammoniak og carbondioxid udvundne synteseblanding.
DK104885C (da) Fremgangsmåde til syntese af urinstof af ammoniak og carbondioxid med tilbageføring af ikke til urinstof omsat ammoniumcarbamat og overskydende ammoniak.
ES418118A1 (es) Procedimiento de sintesis de urea.
DK108392C (da) Fremgangsmåde til udvinding af ammoniak og svovloxider af ammoniumsulfatlud.
AT238213B (de) Verfahren zur Herstellung eines hochreinen, insbesondere von Biuret und Ammoniak freien geschmolzenen Harnstoffs
NL7705973A (nl) Werkwijze voor de katalytische omzetting van een ammoniumsulfaat in zwaveldioxyde en ammoniak.
ZM17669A1 (en) Process for the production of urea from a solution containing ammonium carbamate,ammonia and water,with a total recycle of ammonia and carbon dioxide which were not transformed
CH430686A (it) Procedimento per la produzione di urea per sintesi da anidride carbonica ed ammoniaca
FR1186458A (fr) Procédé de synthèse de l'ammoniac et catalyseur destiné, en particulier, à ce procédé
NL138774B (nl) Werkwijze voor het bereiden van ureum uit ammoniak en kooldioxyde.
DK130918B (da) Fremgangsmåde til prilling af smeltet ammoniumnitrat og/eller urinstof, eventuelt indeholdende ammoniumphosphat, og prillinghoved til anvendelse ved fremgangsmåden.
AT245577B (de) Verfahren zur Rückführung von nicht umgesetztem Carbamat bei der Harnstoffsynthese aus Ammoniak und Kohlendioxyd
CA609695A (en) Urea synthesis using excess ammonia
FI40710C (fi) Förfarande för syntes av urinstoff av ammoniak och karbondioxid med tillbakaföring till reaktoren av icke till urinstoff omsatt ammoniumkarbamat och överskott av ammoniak
AU262869B2 (en) A process for returned carbon dioxide and ammonia inthe synthesis of urea
CA541082A (en) Urea process using alkali metal cyanate, ammonia and carbon dioxide
AU731861A (en) A process for returned carbon dioxide and ammonia inthe synthesis of urea
GB823449A (en) Fluid fertilisers
CA559465A (en) Synthesis of guanidine from so2, co2 and nh3
TR18243A (tr) Islah edilmis hararet istihsali ve amonyum karbomat tekrar devrettirilmesi suretiile urea sentezi
GR22189B (el) Συστημα παραγωγης ανυδρου αμμωνιας και υδροξειδιου του αμμωνιου.
CA536511A (en) Urea process using ammonia and carbon dioxide