FR1566041A - - Google Patents

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Publication number
FR1566041A
FR1566041A FR1566041DA FR1566041A FR 1566041 A FR1566041 A FR 1566041A FR 1566041D A FR1566041D A FR 1566041DA FR 1566041 A FR1566041 A FR 1566041A
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
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 filed Critical
Application granted granted Critical
Publication of FR1566041A publication Critical patent/FR1566041A/fr
Expired legal-status Critical Current

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)
FR1566041D 1967-05-22 1968-05-22 Expired FR1566041A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH718267A CH498811A (de) 1967-05-22 1967-05-22 Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd

Publications (1)

Publication Number Publication Date
FR1566041A true FR1566041A (fr) 1969-05-02

Family

ID=4321181

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1566041D Expired FR1566041A (fr) 1967-05-22 1968-05-22

Country Status (5)

Country Link
US (1) US3607938A (fr)
CH (1) CH498811A (fr)
FR (1) FR1566041A (fr)
GB (1) GB1185944A (fr)
NL (1) NL6807142A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478089A1 (fr) * 1980-03-13 1981-09-18 Mitsui Toatsu Chemicals Procede d'extraction des materiaux n'ayant pas reagi dans la synthese de l'uree
FR2490224A1 (fr) * 1980-09-12 1982-03-19 Mitsui Toatsu Chemicals Procede de synthese de l'uree

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954861A (en) * 1968-02-05 1976-05-04 Snamprogetti S.P.A Process for producing urea
US3984469A (en) * 1969-10-16 1976-10-05 Snam Progetti S.P.A. Process for the production of urea
US4137262A (en) * 1969-10-16 1979-01-30 Snam Progetti S.P.A. Process for the production of urea
US4042626A (en) * 1972-07-12 1977-08-16 Chemical Construction Corporation Integrated two-stage urea synthesis
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
IT1014987B (it) * 1974-06-12 1977-04-30 Snam Progetti Procedimento integrato urea am moniaca
US4082797A (en) * 1975-04-23 1978-04-04 Snamprogetti, S.P.A. Method for the condensation of carbammate in urea-synthesis installations
JPS5517346A (en) * 1978-07-24 1980-02-06 Toyo Eng Corp Synthetic method of urea
JPS5811432B2 (ja) * 1979-10-08 1983-03-02 三井東圧化学株式会社 尿素合成法
IT1141030B (it) * 1980-08-29 1986-10-01 Snam Progetti Procedimento per la produzione di urea
JPS5746954A (en) * 1980-09-05 1982-03-17 Mitsui Toatsu Chem Inc Synthesis of urea
US4500734A (en) * 1980-12-11 1985-02-19 Snamprogetti S.P.A. Process for the production of urea
IT1211125B (it) * 1981-10-16 1989-09-29 Ortu Francesco Composti azotati. processo per la preparazione di
DE3364579D1 (en) * 1982-06-03 1986-08-28 Montedison Spa Method for avoiding the corrosion of strippers in urea manufacturing plants
EP3398935A1 (fr) * 2017-05-05 2018-11-07 Casale Sa Procédé et installation de synthèse de l'urée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478089A1 (fr) * 1980-03-13 1981-09-18 Mitsui Toatsu Chemicals Procede d'extraction des materiaux n'ayant pas reagi dans la synthese de l'uree
FR2490224A1 (fr) * 1980-09-12 1982-03-19 Mitsui Toatsu Chemicals Procede de synthese de l'uree

Also Published As

Publication number Publication date
CH498811A (de) 1970-11-15
GB1185944A (en) 1970-03-25
NL6807142A (fr) 1968-11-25
US3607938A (en) 1971-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse