GB1184004A - Process for the Production of Urea having a Low Carbamate Content - Google Patents

Process for the Production of Urea having a Low Carbamate Content

Info

Publication number
GB1184004A
GB1184004A GB30814/68A GB3081468A GB1184004A GB 1184004 A GB1184004 A GB 1184004A GB 30814/68 A GB30814/68 A GB 30814/68A GB 3081468 A GB3081468 A GB 3081468A GB 1184004 A GB1184004 A GB 1184004A
Authority
GB
United Kingdom
Prior art keywords
urea
excess
solution
synthesis zone
gaseous
Prior art date
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
GB30814/68A
Other languages
English (en)
Inventor
M Guadalupi
U Zardi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of GB1184004A publication Critical patent/GB1184004A/en
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
    • 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
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB30814/68A 1967-09-29 1968-06-27 Process for the Production of Urea having a Low Carbamate Content Expired GB1184004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2102767 1967-09-29

Publications (1)

Publication Number Publication Date
GB1184004A true GB1184004A (en) 1970-03-11

Family

ID=11175595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30814/68A Expired GB1184004A (en) 1967-09-29 1968-06-27 Process for the Production of Urea having a Low Carbamate Content

Country Status (15)

Country Link
JP (1) JPS5432767B1 (es)
AT (1) AT290545B (es)
BE (1) BE719035A (es)
CH (1) CH487855A (es)
CS (1) CS155191B2 (es)
DE (1) DE1768776B2 (es)
DK (1) DK118396B (es)
ES (1) ES358855A1 (es)
FR (1) FR1576811A (es)
GB (1) GB1184004A (es)
IE (1) IE32209B1 (es)
LU (1) LU56630A1 (es)
NL (1) NL161137C (es)
NO (1) NO145949C (es)
SE (1) SE373574B (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002298A2 (en) * 1977-11-30 1979-06-13 Unie Van Kunstmestfabrieken B.V. Process and apparatus for the removal of ammonium carbamate from a urea-synthesis solution
US4208347A (en) * 1977-05-05 1980-06-17 Montedison S.P.A. Process for the synthesis of urea
US4899813A (en) * 1984-04-20 1990-02-13 Snamprogetti S.P.A. Process and apparatus for the synthesis of urea and material used in it
EP0727414A1 (en) 1995-02-16 1996-08-21 SNAMPROGETTI S.p.A. High yield process for urea synthesis
WO2013104638A1 (en) 2012-01-09 2013-07-18 Saipem S.P.A Process for the synthesis of urea comprising a passivation stream at the stripper bottom
WO2023121443A1 (en) 2021-12-20 2023-06-29 Stamicarbon B.V. Thermal stripping urea production

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN169678B (es) * 1987-08-13 1991-11-30 Austral Pacific Fertilizers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208347A (en) * 1977-05-05 1980-06-17 Montedison S.P.A. Process for the synthesis of urea
EP0002298A2 (en) * 1977-11-30 1979-06-13 Unie Van Kunstmestfabrieken B.V. Process and apparatus for the removal of ammonium carbamate from a urea-synthesis solution
EP0002298B1 (en) * 1977-11-30 1981-01-21 Unie Van Kunstmestfabrieken B.V. Process and apparatus for the removal of ammonium carbamate from a urea-synthesis solution
US4899813A (en) * 1984-04-20 1990-02-13 Snamprogetti S.P.A. Process and apparatus for the synthesis of urea and material used in it
EP0727414A1 (en) 1995-02-16 1996-08-21 SNAMPROGETTI S.p.A. High yield process for urea synthesis
WO2013104638A1 (en) 2012-01-09 2013-07-18 Saipem S.P.A Process for the synthesis of urea comprising a passivation stream at the stripper bottom
US9199926B2 (en) 2012-01-09 2015-12-01 Saipem S.P.A. Process for the synthesis of urea comprising a passivation stream at the stripper bottom
WO2023121443A1 (en) 2021-12-20 2023-06-29 Stamicarbon B.V. Thermal stripping urea production

Also Published As

Publication number Publication date
DE1768776B2 (de) 1973-05-03
ES358855A1 (es) 1970-05-16
CH487855A (fr) 1970-03-31
CS155191B2 (en) 1974-05-30
FR1576811A (es) 1969-08-01
IE32209L (en) 1969-03-29
DE1768776A1 (de) 1971-09-16
JPS5432767B1 (es) 1979-10-16
NL161137C (nl) 1980-01-15
NL6808895A (es) 1969-04-01
AT290545B (de) 1971-06-11
NL161137B (nl) 1979-08-15
BE719035A (es) 1969-01-16
SE373574B (sv) 1975-02-10
LU56630A1 (es) 1968-11-14
DK118396B (da) 1970-08-17
NO145949C (no) 1982-06-30
NO145949B (no) 1982-03-22
IE32209B1 (en) 1973-05-16

Similar Documents

Publication Publication Date Title
GB1184004A (en) Process for the Production of Urea having a Low Carbamate Content
GB1341497A (en) Process for the production of urea
GB1259976A (en) Urea synthesis process
ES8306103A1 (es) "un procedimiento mejorado para la preparacion de urea".
ES426480A1 (es) Un procedimiento para preparar urea.
US4092358A (en) Process for the production of urea having a low carbamate content
GB1147734A (en) Method for the preparation of urea
GB1031528A (en) Method for producing urea starting from carbon dioxide and ammonia
GB981641A (en) Production of urea
ES313470A1 (es) Un procedimiento para la preparacion de urea
GB1292515A (en) Process for producing urea
ES320841A1 (es) Un procedimiento para la preparaciën de azinas
GB1253724A (en) Process for producing urea
GB1193586A (en) Process of Preparing a Mixture of a Lactam and an Alkali Compound of this Lactam
GB1181039A (en) Process for the Production of Urea
GB1041376A (en) Production of glyoxal
GB1359715A (en) Integrated process for the production of urea
ES379855A1 (es) Procedimiento para sintetizar urea de dioxido de carbono y amoniaco.
GB1198955A (en) Process for the Production of Oxalic Acid
GB696996A (en) Process for the production of ammonium sulphamate
Tetenbaum et al. Oxidative cleavage of nitrilotriacetic acid to iminodiacetic acid
GB1173195A (en) Urea Synthesis
GB756934A (en) Process for the production of urea and ammonium carbamate
GB1108409A (en) Method of synthesizing urea
GB1342166A (en) Process for the production of alkynols

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years